DOCSLIB.ORG

Synthesis and Characterization of Luminescent Cyclic Germanium Compounds Teresa Lynn Bandrowsky University of Missouri-St

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Synthesis and Characterization of Luminescent Cyclic Germanium Compounds Teresa Lynn Bandrowsky University of Missouri-St University of Missouri, St. Louis IRL @ UMSL Dissertations UMSL Graduate Works 5-17-2013 Synthesis and Characterization of Luminescent Cyclic Germanium Compounds Teresa Lynn Bandrowsky University of Missouri-St. Louis Follow this and additional works at: https://irl.umsl.edu/dissertation Part of the Chemistry Commons Recommended Citation Bandrowsky, Teresa Lynn, "Synthesis and Characterization of Luminescent Cyclic Germanium Compounds" (2013). Dissertations. 309. https://irl.umsl.edu/dissertation/309 This Dissertation is brought to you for free and open access by the UMSL Graduate Works at IRL @ UMSL. It has been accepted for inclusion in Dissertations by an authorized administrator of IRL @ UMSL. For more information, please contact [email protected]. The Synthesis and Characterization of Luminescent Cyclic Germanium Compounds by Teresa Bandrowsky A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Chemistry) University of Missouri – St. Louis May 2013 Abstract Synthesis and Characterization of Luminescent Cyclic Germanium Compounds The vision in the field of organic electronics is the realization of flexible, easily manufactured, low cost optoelectronics for use in organic light emitting diodes (OLEDs) for large area displays and lighting applications, organic photovoltaic cells, and organic field-effect transistors. The active layers within such devices are composed of semiconducting small molecules or polymers. The rich chemistry of new π-conjugated materials holds the key to continued progress by allowing the material properties of organic semiconductors to be readily tuned towards application specific demands. In order for these materials to be useful in device applications, they must exhibit high stability, electron mobility and quantum efficiency. The challenge lies in the fact that few organic compounds exhibit these characteristics in the solid state. Many organic molecules experience aggregation-caused quenching (ACQ) of light emission in the solid state as a result of interactions with neighboring molecules which promote the formation of excimers which decay non-radiatively. At the core of this subject matter is how to modify their electronic structures such that they produce desirable photophysical and optical properties necessary for solid state applications. Hence, this field is essentially synthetically driven to meet the ever-growing demand for new fluorescent molecules with properties which can lead to improvements in device performance. Significant research has been reported on the syntheses and properties of π-conjugated Group 14 containing molecules over the last two decades for their unique aggregation-induced emission (AIE) whereby a non-emissive chromophore is induced to emit light by the formation of aggregates as well as optoelectronic properties resulting in long wavelength absorption and photoluminescence. The research presented herein was focused on the synthetic development of germanium-containing semiconductors which could serve as platforms for further investigations of the properties of the electronic structures of these isolated molecules. Based on the current understanding of the AIE photoluminescence processes, structural features prevalent in these systems were incorporated into the π-conjugated frameworks of several germanium heterocycles in hopes of enhancing their ability to emit with high efficiency in the solid state. Figure A- 1. Molecular structures of germanium compounds targeted for investigation: germoles, germafluorenes, and germanium fluorescein analog respectively. This is dedicated to my husband, Andrew Bandrowsky, whose love and support made this endeavor possible. Thank you for being my best friend as well as the love of my life. Acknowledgements I would like to thank all the people who have instructed, supported, and inspired me during my doctoral study. I would like to thank my advisor, Dr. Janet Braddock-Wilking. Your encouragement, guidance, and wisdom have been an integral part of my instruction. Words cannot express my gratitude for all that you have done. Thank you for your understanding and flexibility during some very difficult family crises. I truly believe that I would not have made it through the program if I had been with any other advisor. Thank you for allowing me to accomplish this goal. I would like to express my gratitude to Dr. Joyce Y. Corey for her guidance and constructive comments. Thank you for inspiring me to enter the program and for encouraging me to grow in my studies. Your friendship has meant a lot throughout the years. I would like to thank my thesis committee for all their work and comments: Dr. Joyce Y. Corey, Dr. Stephen Holmes, and Dr. Rudolph E. K. Winter. I would like to thank my co-worker, James B. Carroll, for helpful discussions throughout the years and for solving x-ray crystal structures. I would also like to thank the following for their contributions to my research over the years: Dr. Nigam Rath, Dr. Rudolph E. K. Winter, Joe Kramer, David Osborn, Dr. Michael Nichols, Dr. Eike Bauer, and Dr. Rensheng Luo. Finally, I want to thank my family for their love and support. Their belief made this dream a reality. Table of Contents Figures ............................................................................................................ xv Schemes ......................................................................................................... xxiv Tables .......................................................................................................... xxv Chapter I ..............................................................................................................1 1.1 Introduction .............................................................................................................1 1.2 Fluorescence ............................................................................................................1 1.3 Variables that affect fluorescence .............................................................................4 1.4 Electroluminescence ................................................................................................7 1.5 OLED configurations ...............................................................................................8 1.6 Mechanism of light emission in OLEDS ..................................................................9 1.7 General operating parameters ................................................................................. 11 1.8 Efficiency and Stability .......................................................................................... 12 1.9 Materials ............................................................................................................ 14 1.10 Group 14 π-conjugated materials.......................................................................... 16 1.11 Research Objectives ............................................................................................. 19 1.12 References ........................................................................................................... 21 Chapter II ............................................................................................................ 24 2.1 Introduction ........................................................................................................... 24 2.2 Synthetic Overview ................................................................................................ 31 2.3 Results and Discussion........................................................................................... 37 2.3.1 2,5-Disubstituted Germoles ................................................................................. 37 2.3.1.1 Synthesis of 1,4-diiodo-1,4-bis(trimethylsilyl)-2,3-diphenylbutadiene (2-1) ................................................................................................................ 41 ii 2.3.2 Symmetrical 1,1-substituted germoles (2-8) .................................................... 51 2.3.2.1 Synthesis of 1,1-dichloro-2,3,4,5-tetraphenylgermole (2-7) ......................... 51 2.3.3 Synthesis of 1,1-disubstituted-2,3,4,5-tetraphenylgermoles (2-16 through 2-23) .................................................................................................................................. 53 2.3.3.1 Synthesis of 4-bromo-N,N-diethylbenzylamine (2-24) ............................... 77 2.3.3.2 Attempted synthesis of 1,1-bis(diethylbenzylamine)-2,3,4,5- tetraphenylgermole (2-25) ........................................................................ 80 2.3.3.3 Synthesis of 1-chloro-1,2,3,4,5-pentaphenylgermole (2-9) ........................ 84 2.3.3.4 Synthesis of 1-ethynylphenyl-1,2,3,4,5-pentaphenylgermole (2-27) .......... 88 2.3.3.5 Attempted synthesis of 1-diethylbenzylamine-1,2,3,4,5-pentaphenylgermole (2-28) ....................................................................................................... 91 2.3.3.6 Synthesis of 1-ethynyl-1,2,3,4,5-pentaphenylgermole (2-10) ..................... 95 2.3.3.7 Synthesis of 1-hydrido-1,2,3,4,5-pentaphenylgermole (2-30) .................. 100 2.3.3.8 Attempted synthesis of 1-vinylaniline-1,2,3,4,5-pentaphenylgermole (2-30) .............................................................................................................. 104 2.4 Summary and future work .................................................................................... 106 2.5 Experimental.......................................................................................................
Load more

Recommended publications
  • 13C NMR-Study of 1,1-Dipotassio-2,3,4,5
    J. Chosun Natural Sci. Vol. 10, No. 3 (2017) pp. 131 − 136 https://doi.org/10.13160/ricns.2017.10.3.131 13C NMR-Study of 1,1-Dipotassio-2,3,4,5-Tetraphenyl-1-Silacyclopentadienide 2− + Dianion [SiC4Ph4] •2[K ] and 1,1-Dipotassio-2,3,4,5-Tetraphenyl-1- 2− + Germacyclopentadienide Dianion [GeC4Ph4] •2[K ] Jang-Hwan Hong† Abstract 13 2− + The chemical shifts in the C NMR spectra of 2,3,4,5-tetraphenyl-1-silacyclopentdienide dianion [SiC4Ph4] •2[K ] (3) 2− + 2− + and 2,3,4,5-tetraphenyl-1-germacyclopentdienide dianion [GeC4Ph4] •2[K ] (4) were compared to those of [SiC4Ph4] •2[Li ] 2− + 2− + (5), [SiC4Ph4] •2[Na ] (6), and [GeC4Ph4] •2[Li ] (7). The average polarizations in two phenyl groups of two potassium 2− + salts are decreased over 15% to 20% comparing to those of the lithium salts and sodium salt {[EC4Ph4] •2[M ] (E=Si, Ge, M=Li, Na) due to the effect of the counter potassium cation. Keywords: Silole, Germole, Dianion, Aromaticity, Potassium 1. Introduction aromatic[5, 6] (Scheme 1). In these points it is very interesting to find out any The last decades have witnessed tremendous progresses effect of counter-cation to the aromaticity of 2,3,4,5- in the field of group 14 metallole dianions and the related tetraphenyl substituted silole dianion or germole dianion. metallole anions[1-6] since the first silole dianion had been Meanwhile there is no report for the effect of the reported[7]. In particular the syntheses and characteriza- counter-cation in group 14 metallole dianions as long as 1− tions of the silole anion [1-tert-butyl-SiC4Ph4] , the silole we know honestly until now.
    [Show full text]
  • Conjugated Materials Containing Dithienometalloles
    Conjugated materials containing dithienometalloles Joshua Paul Green Submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Physics Imperial College London September 2016 Declaration The work presented herein was carried out at the Chemistry Department of Imperial College London between October 2012 and September 2016 under the supervision of Professor Martin Heeney. Except where otherwise stated, all work was performed by me. Joshua P. Green, September 2016 ii Contributions This work would not have been possible without the people below, to whom I send my whole-hearted thanks. The organic field effect transistors discussed in Chapters 2 and 4 were prepared and tested by Dr. Yang Han at Imperial College London. Organic photovoltaic devices (Chapter 3) were tested by Dr. Hyojung Cha and Dr. Pabitra Tuladhar at Imperial College London. The X-ray diffraction measurements in Chapter 2 were carried out by Rebecca Kilmurray at Imperial College London. Photoelectron spectroscopy in air measurements were carried out by Adam Creamer at CSIRO (Melbourne, Australia). Finally, I would like to thank Sam Cryer, Dr. Abby Casey, and Dr. Zhuping Fei for providing starting materials and polymers used in Chapters 2, 3, and 4, respectively. Additional thanks must go to Haojie Dai for his help with the work discussed in Chapter 5 during his time as my student in his Master’s year. iii Copyright Declaration The copyright of this thesis rests with the author and is made available under a Creative Commons Attribution Non-Commercial No Derivatives licence. Researchers are free to copy, distribute or transmit the thesis on the condition that they attribute it, that they do not use it for commercial purposes and that they do not alter, transform or build upon it.
    [Show full text]
  • Developing the Catalytic Asymmetric Hydroarsination Reaction
    This document is downloaded from DR‑NTU (https://dr.ntu.edu.sg) Nanyang Technological University, Singapore. Developing the catalytic asymmetric hydroarsination reaction Tay, Wee Shan 2020 Tay, W. S (2020). Developing the catalytic asymmetric hydroarsination reaction. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/142898 https://doi.org/10.32657/10356/142898 This work is licensed under a Creative Commons Attribution‑NonCommercial 4.0 International License (CC BY‑NC 4.0). Downloaded on 11 Oct 2021 05:24:27 SGT DEVELOPING THE CATALYTIC ASYMMETRIC HYDROARSINATION REACTION TAY WEE SHAN SCHOOL OF PHYSICAL AND MATHEMATICAL SCIENCES 2020 DEVELOPING THE CATALYTIC ASYMMETRIC HYDROARSINATION REACTION TAY WEE SHAN SCHOOL OF PHYSICAL AND MATHEMATICAL SCIENCES A thesis submitted to the Nanyang Technological University in partial fulfilment of the requirement for the degree of Doctor of Philosophy 2020 Statement of Originality I hereby certify that the work embodied in this thesis is the result of original research done by me except where otherwise stated in this thesis. The thesis work has not been submitted for a degree or professional qualification to any other university or institution. I declare that this thesis is written by myself and is free of plagiarism and of sufficient grammatical clarity to be examined. I confirm that the investigations were conducted in accord with the ethics policies and integrity standards of Nanyang Technological University and that the research data are presented honestly and without prejudice. 7 July 2020 . Date Tay Wee Shan Supervisor Declaration Statement I have reviewed the content and presentation style of this thesis and declare it of sufficient grammatical clarity to be examined.
    [Show full text]
  • Catalytic Main Group Element Bond Formation Reactions Toward the Preparation of Conjugated Materials Neil Mucha University of Vermont
    University of Vermont ScholarWorks @ UVM Graduate College Dissertations and Theses Dissertations and Theses 2015 Catalytic Main Group Element Bond Formation Reactions Toward the Preparation of Conjugated Materials Neil Mucha University of Vermont Follow this and additional works at: https://scholarworks.uvm.edu/graddis Part of the Inorganic Chemistry Commons Recommended Citation Mucha, Neil, "Catalytic Main Group Element Bond Formation Reactions Toward the Preparation of Conjugated Materials" (2015). Graduate College Dissertations and Theses. 469. https://scholarworks.uvm.edu/graddis/469 This Dissertation is brought to you for free and open access by the Dissertations and Theses at ScholarWorks @ UVM. It has been accepted for inclusion in Graduate College Dissertations and Theses by an authorized administrator of ScholarWorks @ UVM. For more information, please contact [email protected]. CATALYTIC MAIN GROUP ELEMENT BOND FORMATION REACTIONS TOWARD THE PREPARATION OF CONJUGATED MATERIALS A Dissertation Presented by Neil Thomas Mucha to The Faculty of the Graduate College of The University of Vermont In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Specializing in Chemistry October, 2015 Defense Date: July 23, 2015 Dissertation Examination Committee: Rory Waterman, Ph. D., Advisor Qingbin Wang, Ph. D., Chairperson Christopher C. Landry, Ph. D. Adam C. Whalley, Ph. D. Cynthia J. Forehand, Ph. D., Dean of the Graduate College ABSTRACT Polymers incorporating main group elements offer different and interesting properties compared to their all carbon analogues. For example, π-conjugated polymers incorporating phosphorus in the main chain of the polymer have generated interest due to their unique thermal and electronic properties, which primarily result from delocalization of the phosphorous lone pair within aromatic units.
    [Show full text]
  • [Ph4c4si(Me/Cl)-(Me/Cl)Sic4ph4] from Silole Anion [Mesic4ph4]
    molecules Communication 0 Synthesis of 1,1 -Bis(1-Methyl/Chloro-2,3,4,5- Tetraphenyl-1-Silacyclopentadienyl) [Ph4C4Si(Me/Cl)-(Me/Cl)SiC4Ph4] from Silole Anion − + + [MeSiC4Ph4] •[Li or Na ] and Silole Dianion 2− + [SiC4Ph4] •2[Li ]; Oxidative Coupling of Silole − + + Anion [MeSiC4Ph4] •[Li or Na ] by Ferrous Chloride (FeCl2) and Oxidative Coupling and 2− + Chlorination of Silole Dianion [SiC4Ph4] •2[Li ] by Cupric Chloride (CuCl2) Jang-Hwan Hong Department of Nanopolymer Material Engineering, Pai Chai University, 155-40 Baejae-ro (Doma-Dong), Seo-Gu, Daejon 302-735, Korea; [email protected]; Tel.: +82-42-520-5755 Academic Editor: Arnaud Gautier Received: 20 September 2019; Accepted: 15 October 2019; Published: 19 October 2019 Abstract: A reaction of silole anion {[MeSiC Ph ] [Li+ or Na+](1) with anhydrous ferrous chloride 4 4 −• (FeCl2) in THF (tetrahydrofuran) gives 1,10-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadienyl) [Ph4C4Si(Me)-(Me)SiC4Ph4](2) with precipitation of iron metal in high yield. Silole dianion {[SiC Ph ]2 2[Li+](3) is added to anhydrous cupric chloride (CuCl ) in THF at 78 C, then the 4 4 −• 2 − ◦ dark red solution changes into a greenish solution. From the solution, a green solid is isolated, and stirring it in toluene at room temperature provides quantitatively 1,10-bis(1-chloro-2,3,4,5- tetraphenyl-1-silacyclopentadienyl) [Ph4C4Si(Cl)-(Cl)SiC4Ph4](4) with precipitation of copper metal in 2 toluene. The green solid is suggested to be 1,10-bissilolyl bisradical [Ph4C4Si-SiC4Ph4] • (8), and lithium cuprous chloride salts {[Li CuICl ]+ [CuICl ] }.
    [Show full text]
  • Encyclopediaof INORG ANIC CHEMISTRY
    Encyclopedia of INORG ANIC CHEMISTRY Second Edition Editor-in-Chief R. Bruce King University of Georgia, Athens, GA, USA Volume IX T-Z WILEY Contents VOLUME I Ammonolysis 236 Ammoxidation 236 Amphoterism 236 Ab Initio Calculations Analytical Chemistry of the Transition Elements 236 Acceptor Level Ancillary Ligand 248 Acetogen Anderson Localization 248 Acid Catalyzed Reaction Angular Overlap Model 248 7r-Acid Ligand Anion 249 Acidity Constants Antiaromatic Compound 249 Acidity: Pauling's Rules 2 Antibonding 250 Acids & Acidity 2 Antiferromagnetism 250 Actinides: Inorganic & Coordination Chemistry 2 Antigen 250 Actinides: Organometallic Chemistry 33 Antimony: Inorganic Chemistry 250 Activated Complex 59 Antimony: Organometallic Chemistry 258 Activation 59 Antioxidant 266 Activation Parameters 59 Antiport 266 Activation Volume 60 Antistructure 266 Active Site 60 Antitumor Activity 266 Adamson's Rules 60 Apoprotein 266 Addition Compound 60 Aqua 267 Agostic Bonding 60 Arachno Cluster 267 Alkali Metals: Inorganic Chemistry 61 Arbuzov Rearrangement 267 Alkali Metals: Organometallic Chemistry 84 Archaea 267 Alkalides 94 Arene Complexes 267 Alkaline Earth Metals: Inorganic Chemistry 94 Arsenic: Inorganic Chemistry 268 Alkaline Earth Metals: Organometallic Chemistry 116 Arsenic: Organoarsenic Chemistry 288 Alkane Carbon-Hydrogen Bond Activation 147 Arsine & As-donor Ligands 308 Alkene Complexes 153 Associative Substitution 309 Alkene Metathesis 154 Asymmetrie Synthesis 309 Alkene Polymerization 154 Asymmetrie Synthesis by Homogeneous Catalysis
    [Show full text]
  • Synthesis and NMR-Study of 1-Trimethylsilyl Substituted Silole
    Molecules 2013, 18, 10568-10579; doi:10.3390/molecules180910568 OPEN ACCESS molecules ISSN 1420-3049 www.mdpi.com/journal/molecules Article Synthesis and NMR-Study of 1-Trimethylsilyl Substituted Silole − + Anion [Ph4C4Si(SiMe3)] •[Li] and 3-Silolenide 2,5-carbodianions −2 + −2 + {[Ph4C4Si(n-Bu)2] •2[Li] , [Ph4C4Si(t-Bu)2] •2[Li] } via Silole −2 + Dianion [Ph4C4Si] •2[Li] Jang-Hwan Hong † Department of Nanopolymer Material Engineering, Pai Chai University, 155-40 Baejae-ro (Doma-Dong), Seo-Gu, Daejon 302-735, Korea; E-Mail: [email protected]; Tel.: +82-42-520-5755; Fax: +82-42-520-5798 † Dedicated to Professor Wan-Chul Joo on the occasion of his 89th birthday. Received: 24 July 2013; in revised form: 21 August 2013 / Accepted: 22 August 2013 / Published: 30 August 2013 Abstract: 1-Trimethylsilyl, 1-R (R = Me, Et, i-Bu)-2,3,4,5-tetraphenyl-1-silacyclopentadiene [Ph4C4Si(SiMe3)R] are synthesized from the reaction of 1-trimethylsilyl,1-lithio-2,3,4,5- − + tetraphenyl-1-silacyclopentadienide anion [Ph4C4SiMe3] •[Li] (3) with methyl iodide, ethyl iodide, and i-butyl bromide. The versatile intermediate 3 is prepared by hemisilylation of the −2 + 1 silole dianion [Ph4C4Si] •2[Li] (2) with trimethylsilyl chloride and characterized by H-, 13C-, and 29Si-NMR spectroscopy. 1,1-bis(R)-2,3,4,5-tetraphenyl-1-silacyclopentadiene [Ph4C4SiR2] {R = n-Bu (7); t-Bu (8)} are synthesized from the reaction of 2 with n-butyl bromide and t-butyl bromide. Reduction of 7 and 8 with lithium under sonication −2 + gives the respective 3-silolenide 2,5-carbodianions {[Ph4C4Si(n-Bu)2] •2[Li] (10) and −2 + 1 13 29 [Ph4C4Si(t-Bu)2] •2[Li] (11)}, which are characterized by H-, C-, and Si-NMR spectroscopy.
    [Show full text]
  • University of California, San Diego
    UNIVERSITY OF CALIFORNIA, SAN DIEGO Design and Optimization of Polymeric Silole and Boronate Photoluminescent Probes for Improved Explosives Detection Applications A Dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Chemistry by Jason C. Sanchez Committee in charge: Professor William C. Trogler, Chair Professor Seth Cohen Professor David Hendrickson Professor Andrew Kummel Professor Yuhwa Lo 2008 Copyright© Jason C. Sanchez, 2008 All rights reserved The dissertation of Jason C. Sanchez is approved, and it is acceptable in quality and form for publication on microfilm. Chair University of California, San Diego 2008 iii DEDICATION For my wife Erin who brings true happiness to my life and is a constant reminder of how lucky I really am. For our baby boy that she carries inside her, no need for self- motivation now! For my parents who continue to make life easy for us and set a positive example for our family. For my sisters who find a way everyday to make me a proud brother. For my grandparents who give more than they have, take less then they should, and understand the meaning family. iv TABLE OF CONTENTS Signature Page..............................................................................................................iii Dedication.....................................................................................................................iv Table of Contents...........................................................................................................v
    [Show full text]
  • Ar. Qsosi I 300O H H 4, N ^\= E 200 - 100 O - 250 300 350 400 450 500 550 Wavelength (Nm) US 8,557,595 B2 Page 2
    US008557595 B2 (12) United States Patent (10) Patent No.: US 8,557,595 B2 Trogler et al. (45) Date of Patent: Oct. 15, 2013 (54) FLUORESCENCE DETECTION OF (56) References Cited NITROGEN-CONTAINING EXPLOSIVES AND BLUE ORGANIC LED U.S. PATENT DOCUMENTS (75) Inventors: William C. Trogler, Del Mar, CA (US); 5,063,297 A 1 1/1991 Hardenbrook Jason Sanchez, The Woodlands, TX 5,115,459 A 5/1992 Bertozzi (US) (Continued) (73) Assignee: The Regents of the University of FOREIGN PATENT DOCUMENTS California, Oakland, CA (US) WO WOO2.38653 A1 5, 2002 WO WO 2005-047363 5, 2005 *) NotOt1Ce: Subjubject to anyy d1Sclaimer,disclai theh term off thisthi patent is extended or adjusted under 35 OTHER PUBLICATIONS U.S.C. 154(b) by 320 days. Korshak, V. V. et al., Russian Chemical Bulletin 1962, 11, 2153 (21) Appl. No.: 12/523,104 2155.* (22) PCT Filed: Jan. 29, 2008 (Continued) (86). PCT No.: PCT/US2O08/OO1193 Primary Examiner — Arlen Soderquist S371 (c)(1) (74) Attorney, Agent, or Firm — Greer, Burns & Crain Ltd. C s (2), (4) Date: Mar. 11, 2010 (57) ABSTRACT (87) PCT Pub. No.: WO2008/140635 The invention provides a sensor for detecting nitrogen con taining high explosives. The sensor includes a Substrate and a PCT Pub. Date: Nov. 20, 2008 blue-photoluminescent metallofluorene copolymer to be car O O ried on said Substrate during testing for nitrogen containing (65) Prior Publication Data high explosives. The copolymer is preferably a blue-photo US 2010/0173420 A1 Jul. 8, 2010 luminescent metallofluorene copolymer, and preferably is a Related U.S.
    [Show full text]
  • Copyright by Michael Findlater May 2008
    Copyright By Michael Findlater May 2008 The Dissertation Committee for Michael Findlater certifies that this is the approved version of the following dissertation: Adventures in Main Group Chemistry: From Molecules to Materials Committee: ___________________________ Alan H. Cowley, Supervisor ___________________________ Richard A. Jones ___________________________ Bradley J. Holliday ___________________________ Alan Campion ___________________________ Colin Abernethy iii Adventures in Main Group Chemistry: From Molecules to Materials by Michael Findlater, B.Sc. Hons Dissertation Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy The University of Texas at Austin May 2008 ii Dedicated to: My Family, with whom I credit anything and everything that can be said to be good about me Acknowledgements The first and most important person I must thank is, of course, Professor Alan H. Cowley. Boss, your boundless enthusiasm for science was both encouraging and contagious in equal measure while your knowledge and insight made me (for better or worse!) the chemist I am today. The colleagues with whom I had the pleasure and privilege to work with in my time in the Cowley group all played important roles in my development in one way or another and I would be remiss without thanking you all. In particular I would to express my everlasting gratitude to Dr Nick Hill for his instruction, help, mentoring and all round ‘great bloke-edness’. Dr. Christopher Entwistle, Dr Leonardo Apostolico and Dr Gregor Reeske (who performed the original synthesis of compound 47) were sources of constant information and I was happy to have such helpful post-doctoral researchers at my disposal.
    [Show full text]
  • Analysis of Explosives Reference List
    Analysis of Explosives Reference List Fire Debris and Explosives Subcommittee Table of Contents 1 – Books ........................................................................................................................................ 1 2- Reviews/Guides/Studies/On-line Resources .............................................................................. 9 3 - Devices .................................................................................................................................... 16 4 - Health & Safety ....................................................................................................................... 18 5 - Low Explosives ....................................................................................................................... 18 6 - Canine Detection ..................................................................................................................... 24 7 – Laboratory Sampling and Sample Prep .................................................................................. 25 8 – Intact Explosives Analysis ...................................................................................................... 29 9 – Homemade/Improvised Explosives/Peroxides ....................................................................... 55 10 –Trace and Post Blast Residues Analysis ................................................................................ 67 11 – Markers and Taggants ..........................................................................................................
    [Show full text]
  • Thesis of Metallole Monomers
    UNIVERSITY OF CALIFORNIA, SAN DIEGO Photoluminescent Metalloles for Chemical Sensing of Nitroaromatic Explosives and Chromium(VI) A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Chemistry by Sarah Josepha Toal Committee in charge: Professor William C. Trogler, Chair Professor Douglas Magde Professor Karsten Meyer Professor Michael J. Sailor Professor Jan B. Talbot 2005 Copyright© Sarah Josepha Toal, 2005 All rights reserved DEDICATION For my dad, for encouraging me to study philosophy, for showing me that the quest for wisdom must never end, and that we seek knowledge, not for its own sake, but for the power to do good; For my mom, for teaching me that happiness is gained by serving others; For my brothers, Ray and Adam, who always protected me as their little sister; For my sister Mary, like whom I have always strived to be; For Noëlle, Michael, and Joy, for bringing my siblings happiness, and whom I love as my own siblings. iv TABLE OF CONTENTS Signature Page..............................................................................................................iii Dedication.....................................................................................................................iv Table of Contents...........................................................................................................v List of Symbols and Abbreviations ...............................................................................x List of Figures.............................................................................................................xiii
    [Show full text]