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Polyfluorene-Based Semiconductors Combined with Various Periodic
Progress in Polymer Science 37 (2012) 1192–1264 Contents lists available at SciVerse ScienceDirect Progress in Polymer Science j ournal homepage: www.elsevier.com/locate/ppolysci Polyfluorene-based semiconductors combined with various periodic table elements for organic electronics ∗ Ling-Hai Xie, Cheng-Rong Yin, Wen-Yong Lai, Qu-Li Fan, Wei Huang Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210046, China a r t i c l e i n f o a b s t r a c t Article history: Polyfluorenes have emerged as versatile semiconducting materials with applications in Received 12 April 2011 various polymer optoelectronic devices, such as light-emitting devices, lasers, solar cells, Received in revised form 8 February 2012 memories, field-effect transistors and sensors. Organic syntheses and polymerizations Accepted 10 February 2012 allow for the powerful introduction of various periodic table elements and their build- Available online 16 February 2012 ing blocks into -conjugated polymers to meet the requirements of organic devices. In this review, a soccer-team-like framework with 11 nodes is initially proposed to illus- Keywords: trate the structure–property relationships at three levels: chain structures, thin films -Conjugated polymers and devices. Second, the modelling of hydrocarbon polyfluorenes (CPFs) is summarized Band-gap engineering Light-emitting diodes within the framework of a four-element design principle, in which we have highlighted Photovoltaic cell polymorphic poly(9,9-dialkylfluorene)s with unique supramolecular interactions, various Field-effect transistors hydrocarbon-based monomers with different electronic structures, functional bulky groups Memories with steric hindrance effects and ladder-type, kinked, hyperbranched and dendritic confor- mations. -
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. -
Room a Wednesday, September 11 Invited Lectures T. Hashimoto
Room A Wednesday, September 11 Invited Lectures T. Hashimoto, presiding 12:55 1A08IL Polymerization Induced Self-Assembly via Metal-Free Living Polymerization Shinji Sugihara ................................................................................. 2115 S. Osawa, presiding 13:45 1A10IL Multidisciplinary Approaches for Manipulation of Molecules, Cells and Tissues Takehisa Matsuda ............................................................................ 2118 T. Kobayashi, presiding 14:35 1A12IL Biomineralized Organic-Inorganic Hybrids Aiming For Smart Drug Delivery Jun Shi,Shaokui Cao ........................................................................ 2121 N. Kimura, presiding 15:25 1A14IL Automobile made of plant -A dream inspired by cellulose nanofibers- Hiroyuki Yano ................................................................................... 2124 T. Kobayashi, presiding 16:15 1A16IL Thai Silk Fibroin/Gelatin System for Tissue Engineering and Controlled Release Applications Siriporn Damrongsakkul,Sorada Kanokpanont,Juthamas Ratanavaraporn ................................................................................ 2127 K. Takenaka, presiding 17:05 1A18IL From Helix to 2D : Highly Selective Polymer Reaction of Helical Polymer Membranes Toshiki Aoki ...................................................................................... 2130 Thursday, September 12 Invited Lectures S. Okamoto, presiding 9:10 2A01IL Block Copolymer Healing of Lithographic Defects Han-hao Cheng,Imelda Keen,Anguang Yu,Ya-mi Chuang,Idriss -
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. -
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. -
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. -
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. -
Heavier Pnictogens – Treasures for Optical Electronic and Reactivity Tuning Dalton Transactions
Dalton Volume 48 Number 14 14 April 2019 Pages 4431–4744 Transactions An international journal of inorganic chemistry rsc.li/dalton ISSN 1477-9226 FRONTIER Andreas Orthaber et al. Heavier pnictogens – treasures for optical electronic and reactivity tuning Dalton Transactions View Article Online FRONTIER View Journal | View Issue Heavier pnictogens – treasures for optical electronic and reactivity tuning Cite this: Dalton Trans., 2019, 48, 4460 Joshua P. Green, † Jordann A. L. Wells † and Andreas Orthaber * We highlight recent advances in organopnictogen chemistry contrasting the properties of lighter and heavier pnictogens. Exploring new bonding situations, discovering unprecedented reactivities and produ- cing fascinating opto-electronic materials are some of the most prominent directions of current organo- Received 7th February 2019, pnicogen research. Expanding the chemical toolbox towards the heavier group 15 elements will continue Accepted 19th February 2019 to create new opportunities to tailor molecular properties for small molecule activation/reactivity and DOI: 10.1039/c9dt00574a materials applications alike. This frontier article illustrates the elemental substitution approach in selected rsc.li/dalton literature examples. Creative Commons Attribution 3.0 Unported Licence. Introduction cally realised and fundamental work has continued to fasci- nate researchers around the world. More recently, exciting The discovery of phosphorus by Hennig Brand in 1669 pic- news of arsenic thriving species of bacteria5 have then been tured in the famous painting by Joseph Wright of Derby was disproven to incorporate arsenate.6 On the other hand, newly the beginning of pnictogen (Pn) chemistry (Fig. 1). Discoveries developed synthetic routes have made previously scarce or ffi that followed the incidental P4 preparation included the devel- di cult to handle building blocks readily available, with opment of salvarsan (1), 3-amino-4-hydroxiphenyl arsenic(I), broader applications of these systems now being studied. -
[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 ] }. -
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 -
Synthesis and Characterisation of Organic Antimony and Bismuth
Synthesis and Characterisation of Organic Antimony and Bismuth Chains and Cycles Ioan Ghesner Dissertation submitted as a partial fulfillment of the requirements for the degree Doctor of Natural Science (Dr. rer. nat.) Faculty of Chemistry and Biology University of Bremen Bremen 2002 1. Referee: Prof. Dr. H. J. Breunig 2. Referee: Prof. Dr. G.-V. Röschenthaler Date of doctoral examination: 22. August 2002 Contents CONTENTS Introduction . 1 Aims of the present study . 4 Results and Discussion . 6 1. The trialkylantimony(V) dibromide R3SbBr2 [R = CH(SiMe3)2] and the trialkylantimony(V) hydroxy halide R3Sb(Br)OH (R = CH2SiMe3) . 6 1.1 Introduction . 6 1.2 Synthesis and characterisation of R3SbBr2 [R = CH(SiMe3)2] and of R3Sb(Br)OH (R = CH2SiMe3) . 6 2. Chiral organoantimony and -bismuth compounds, RR’SbCl, RR’BiCl, and RR’SbH; R = 2-(Me2NCH2)C6H4, R’ = CH(SiMe3)2. 13 2.1 Introduction . 13 2.2 Synthesis and characterisation of RR’SbCl, RR’BiCl, and RR’SbH; R = 2-(Me2NCH2)C6H4, R’ = CH(SiMe3)2 . 15 3. Organo antimony chain compounds, catena-R2Sb(SbR)nSbR2 . 22 3.1 Introduction . 22 3.2 Synthesis and characterisation of cyclo-[Cr(CO)4(R´2Sb-SbR-SbR-SbR´2)] (R´= Ph or Me, R = Me3SiCH2), cyclo-[Cr(CO)4(Ph2Sb-SbPh-SbR-SbPh2)], and cyclo-[Cr(CO)4(Me2Sb-SbR-SbR-SbMe2)W(CO)5] (R = Me3SiCH2) . 22 3.3 Synthesis and characterisation of the open-chain polystibanes, catena- t t Bu2Sb(SbCH3)nSb Bu2, catena-Mes2Sb(SbPh)nSbMes2 (n = 1, 2) and catena-R2Sb-(SbSiMe3)-SbR2 [R = 2-(Me2NCH2)C6H4]. -
HETEROCYCLIC COMPOUND: a REVIEW Tushar P
International Standard Serial Number (ISSN): 2249-6807 International Journal of Institutional Pharmacy and Life Sciences 10 (3): May-June 2020 INTERNATIONAL JOURNAL OF INSTITUTIONAL PHARMACY AND LIFE SCIENCES Pharmaceutical Sciences Review Article……!!! Receive d: 04-04-2020; Re vis ed: 20-04-2020; Acce pte d: 01-05-2020 HETEROCYCLIC COMPOUND: A REVIEW Tushar P. Patil*, Amol S. Chaudhari, Harshal L. Tare TSPM's, Trimurti Institute of Pharmacy, Jalgaon, Maharashtra, India. Keywords: ABSTRACT Heterocyclic compound, Heterocyclic compound constitute the largest and most varied organic compound, cyclic family of organic compound. Today there are a lot of and non-cyclic. heterocyclic compounds are known, day by day the number is For Correspondence: increasing rapidly due to the enormous synthetic research and Tushar P. Patil also there synthetic utility. Heterocyclic compounds have a TSPM's, Trimurti Institute role in most fields of science such as medicinal chemistry, of Pharmacy, Jalgaon, Maharashtra, India. biochemistry also another area of science. The heterocyclic compounds are of very must interest in daily life. Heterocyclic compound have one or more hetero atoms in there structure. They may be cyclic or non-cyclic in nature. 18 Full Text Available On www.ijipls.com International Standard Serial Number (ISSN): 2249-6807 INTRODUCTION: A heterocyclic compound or ring structure is a cyclic compound that has atoms of least two different elements as members of its ring. Heterocyclic chemistry dealing with the synthesis, properties, and applications of these heterocycles Heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass and many natural and synthetic dyes. The heterocyclic compounds are mainly interest in medicinal chemistry.