Aldrichimica Acta 48.1
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Project Leader Lissa Mccracken Michael Simpson, PE Acting Director Sr
Project Leader Lissa McCracken Michael Simpson, PE Acting Director Sr. Environmental Engineer Kentucky Pollution Prevention Center City of Los Angeles University of Louisville Department of Public Works Louisville, KY Bureau of Sanitation Industrial Waste Management Division Cam Metcalf (former Director of Kentucky Los Angeles, CA Pollution Prevention Center) National Pollution Prevention Round 2001 Lancashire Ave #208 Table Board Member Louisville, KY Authors * Editors Michelle Butler, PhD* Michelle Butler, PhD* Sr. Pollution Prevention Engineer Sr. Pollution Prevention Engineer NY State Pollution Prevention Institute NY State Pollution Prevention Institute Rochester Institute of Technology Rochester Institute of Technology Rochester, New York Rochester, New York Al Innes Jonathan M. Rivin, PhD* Minnesota Pollution Control Agency Waste Management Specialist Green Chemistry Coordinator UW Extension-Solid & Hazardous Waste Pollution Prevention Program Education Center St. Paul, MN University of Wisconsin-Stevens Point Stevens Point, WI Lin Kaatz Chary, PhD, MPH Executive Director Cathy Bouge Great Lakes Green Chemistry Network Washington State Gary, IN Department of Ecology Olympia, WA Olga Krel, MS Plancheck Engineer City of Los Angeles Department of Public Works Bureau of Sanitation Industrial Waste Management Division Los Angeles, CA Ally LaTourelle, Esq. Managing Partner BioEconomy Partners Philadelphia, PA *Editors Green Chemistry Guide This manual provides state agencies and technical assistance providers with tools and resources -
Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling)
Western University Scholarship@Western Electronic Thesis and Dissertation Repository 8-8-2013 12:00 AM Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling) Rana Sabouni The University of Western Ontario Supervisor Prof. Sohrab Rohani The University of Western Ontario Graduate Program in Chemical and Biochemical Engineering A thesis submitted in partial fulfillment of the equirr ements for the degree in Doctor of Philosophy © Rana Sabouni 2013 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Other Chemical Engineering Commons Recommended Citation Sabouni, Rana, "Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling)" (2013). Electronic Thesis and Dissertation Repository. 1472. https://ir.lib.uwo.ca/etd/1472 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. i CARBON DIOXIDE ADSORPTION BY METAL ORGANIC FRAMEWORKS (SYNTHESIS, TESTING AND MODELING) (Thesis format: Integrated Article) by Rana Sabouni Graduate Program in Chemical and Biochemical Engineering A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy The School of Graduate and Postdoctoral Studies The University of Western Ontario London, Ontario, Canada Rana Sabouni 2013 ABSTRACT It is essential to capture carbon dioxide from flue gas because it is considered one of the main causes of global warming. Several materials and various methods have been reported for the CO2 capturing including adsorption onto zeolites, porous membranes, and absorption in amine solutions. -
A Germaaluminocene†
Chemical Science View Article Online EDGE ARTICLE View Journal | View Issue A germaaluminocene† Cite this: Chem. Sci., 2020, 11, 2982 Lena Albers, * Patrik Tholen, Marc Schmidtmann and Thomas Muller¨ * All publication charges for this article The reactions of dipotassium germacyclopentadienediide with two Group 13 dichlorides, Cp*BCl and have been paid for by the Royal Society 2 * ff of Chemistry Cp AlCl2, yield two structurally di erent products. In the case of boron a borole complex of germanium(II) is obtained. The aluminium halide gives an unprecedented neutral Received 21st January 2020 Accepted 7th February 2020 germaaluminocene. Both compounds were fully characterised by multinuclear NMR spectroscopy supported by DFT computations. The molecular structure of the germaaluminocene was DOI: 10.1039/d0sc00401d determined by XRD. rsc.li/chemical-science Introduction conversion and aer work-up complex 2c was isolated as a brown oil in 35% yield (Scheme 2). NMR spectroscopy evi- The aim of utilizing readily available and environmentally denced the presence of the expected borole ring with a h1- benign main group element compounds for activation of bound cyclopentadienyl substituent. Interestingly, the NMR Creative Commons Attribution-NonCommercial 3.0 Unported Licence. unreactive materials and strong bonds instead of transition data indicated frozen rotation around the B-Ca single bond, metal-based complexes became increasingly popular during the giving rise to ten 13C NMR signals for the cyclopentadienyl last decade.1 We attempted to follow this lead by establishing substituent (Table S3, ESI†). In addition, all four carbon atoms polarised heteroalkenes I as they mimic the electronic situation of the borole ring are magnetically non-equivalent. -
Parallels to Frustrated Lewis/Radical Pair Chemistry
klh00 | ACSJCA | JCA11.2.5208/W Library-x64 | manuscript.3f (R5.0.i3:5004 | 2.1) 2020/02/05 13:43:00 | PROD-WS-121 | rq_481292 | 7/01/2020 12:12:45 | 10 | JCA-DEFAULT pubs.acs.org/IC Article 1 Redox-Controlled Reactivity at Boron: Parallels to Frustrated Lewis/ 2 Radical Pair Chemistry ⊥ ⊥ 3 Anthony Wong, Jiaxiang Chu, Guang Wu, Joshua Telser, Roman Dobrovetsky, and Gabriel Menard́ * Cite This: https://dx.doi.org/10.1021/acs.inorgchem.0c01464 Read Online ACCESS Metrics & More Article Recommendations *sı Supporting Information 4 ABSTRACT: We report the synthesis of new Lewis-acidic boranes μ 5 tethered to redox-active vanadium centers, (Ph2N)3V( -N)B(C6F5)2 μ 6 (1a)and(N(CH2CH2N(C6F5))3)V( -N)B(C6F5)2 (1b). Redox IV/V 7 control of the V couple resulted in switchable borane versus 8 “hidden” boron radical reactivity, mimicking frustrated Lewis versus 9 frustrated radical pair (FLP/FRP) chemistry, respectively. Whereas V 10 heterolytic FLP-type addition reactions were observed with the V 11 complex (1b) in the presence of a bulky phosphine, homolytic peroxide, IV 12 or Sn−hydride, bond cleavage reactions were observed with the V * μ 13 complex, [CoCp2 ][(N(CH2CH2N(C6F5))3)V( -N)B(C6F5)2](3b), 14 indicative of boron radical anion character. The extent of radical 15 character was probed by spectroscopic and computational means. IV/V 16 Together, these results demonstrate that control of the V oxidation 17 states allows these compounds to access reactivity observed in both FLP 18 and FRP chemistry. -
Green Chemistry: Beginning, Recent Progress, and Future Challenges
WORLD JOURNAL OF PHARMACY AND PHARMACEUTICAL SCIENCES Dirgha et al. World Journal of Pharmacy and Pharmaceutical Sciences SJIF Impact Factor 7.421 Volume 8, Issue 7, 280-293 Review Article ISSN 2278 – 4357 GREEN CHEMISTRY: BEGINNING, RECENT PROGRESS, AND FUTURE CHALLENGES Dirgha Raj Joshi1* and Nisha Adhikari2 1College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon 21983, Republic of Korea. 2College of Pharmacy, Wonkwang University, Republic of Korea. ABSTRACT Article Received on 08 May 2019, Throughout a long time, green chemistry (GC) reviled how a basic Revised on 29 May 2019, scientific methodology and advanced practice can enhance the safe Accepted on 19 June 2019 output to the human life and the environment without compromising DOI: 10.20959/wjpps20197-14208 the desired outcomes. For this, the advancement in scientific processes were made in the field of designing safer reagents and solvents, *Corresponding Author advancement in catalysis and possible development of the renewable Dirgha Raj Joshi feedstock. From the past lesson, currently the future chemists are being College of Pharmacy, Yonsei University, 85 taught and trained to a wider concept of green chemistry to the practice Songdogwahak-ro, Yeonsu- and increased awareness towards human as well as environmental gu, Incheon 21983, Republic impact. A need for GC practice is highly demanding and the adherence of Korea. to the 12 principles of GC concept is growing rapidly. A need for great ORCID ID: 0000-0002-0303-5677 [email protected], change in policy, rules and regulations which will force industry, [email protected] research institute, academia, and other is still highly demanding. -
Pentamethylcyclopentadienyl Aminoborole Complexes of Hafnium
Pentamethylcyclopentadienyl Aminoborole Complexes of Hafnium Thesis by Andrew F. Kiely In Partial Fufillment of the Requirements for the Degree of Doctor of Philosophy Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena, California 1997 (Submitted August 20,1996) Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. For M y Parents Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. iii Acknowledgments First and most importantly, I would like to thank John Bercaw for the support, encouragement, and opportunities that he has given me over the course of my studies at Caltech. I have been very fortunate to have been able to learn chemistry from someone who is a fine and generous person as well as a great scientist, and I am very grateful to him. I am also grateful to Bill Schaefer, Larry Henling, and Mike Day for performing all the crystallographic work that is reported in this thesis. I appreciate all their good humor and patience despite my (occasional) impatience and (more occasional) ignorance. I've really enjoyed hiking with Bill and playing outfield with Larry as well. The students and post-docs in the Bercaw group have been friends as well as coworkers. Over the years, people in the Bercaw group have been generous with their time, advice and friendship. When I was getting started in the group, Donny Cotter, Bryan Coughlin, and Roger Quan were never too busy to answer my questions or to set me straight. I'm especially grateful to Roger, who helped me to learn vacuum line techniques when I was starting on the aminoborole project. -
The Water-Energy Nexus: Challenges and Opportunities Overview
U.S. Department of Energy The Water-Energy Nexus: Challenges and Opportunities JUNE 2014 THIS PAGE INTENTIONALLY BLANK Table of Contents Foreword ................................................................................................................................................................... i Acknowledgements ............................................................................................................................................. iii Executive Summary.............................................................................................................................................. v Chapter 1. Introduction ...................................................................................................................................... 1 1.1 Background ................................................................................................................................................. 1 1.2 DOE’s Motivation and Role .................................................................................................................... 3 1.3 The DOE Approach ................................................................................................................................... 4 1.4 Opportunities ............................................................................................................................................. 4 References .......................................................................................................................................................... -
Winter for the Membership of the American Crystallographic Association, P.O
AMERICAN CRYSTALLOGRAPHIC ASSOCIATION NEWSLETTER Number 4 Winter 2004 ACA 2005 Transactions Symposium New Horizons in Structure Based Drug Discovery Table of Contents / President's Column Winter 2004 Table of Contents President's Column Presidentʼs Column ........................................................... 1-2 The fall ACA Council Guest Editoral: .................................................................2-3 meeting took place in early 2004 ACA Election Results ................................................ 4 November. At this time, News from Canada / Position Available .............................. 6 Council made a few deci- sions, based upon input ACA Committee Report / Web Watch ................................ 8 from the membership. First ACA 2004 Chicago .............................................9-29, 38-40 and foremost, many will Workshop Reports ...................................................... 9-12 be pleased to know that a Travel Award Winners / Commercial Exhibitors ...... 14-23 satisfactory venue for the McPherson Fankuchen Address ................................38-40 2006 summer meeting was News of Crystallographers ...........................................30-37 found. The meeting will be Awards: Janssen/Aminoff/Perutz ..............................30-33 held at the Sheraton Waikiki Obituaries: Blow/Alexander/McMurdie .................... 33-37 Hotel in Honolulu, July 22-27, 2005. Council is ACA Summer Schools / 2005 Etter Award ..................42-44 particularly appreciative of Database Update: -
Chemistry, Green Chemistry, and the Instrumental Valuation of Sustainability
Minerva (2011) 49:113–136 DOI 10.1007/s11024-011-9165-3 Chemistry, Green Chemistry, and the Instrumental Valuation of Sustainability Nathaniel Logar Published online: 20 February 2011 Ó Springer Science+Business Media B.V. 2011 Abstract Using the Public Value Mapping framework, I address the values suc- cesses and failures of chemistry as compared to the emerging field of green chemistry, in which the promoters attempt to incorporate new and expanded values, such as health, safety, and environmental sustainability, to the processes of priori- tizing and conducting chemistry research. I document how such values are becoming increasingly ‘‘public.’’ Moreover, analysis of the relations among the multiple values associated with green chemistry displays a greater internal coher- ence and logic than for conventional chemistry. Although traditional chemistry research has successfully contributed to both economic and values gains, there have been public values failures due to imperfect values articulations, failure to take a longer-term view, and inertia within a system that places too much emphasis on ‘‘science values.’’ Green chemistry, if implemented effectively, has potential to remedy these failures. Keywords Green chemistry Á Public value mapping Á Science policy Á Chemistry Introduction Chemistry and chemical products are an integral part of the U.S. economy. According to one study, the chemical industry accounts for 1.7% of U.S. GDP, directly creates 868,700 jobs, and contributes to 4.8 million additional positions (ACS 2007). Chemistry research has enhanced health and quality of life, fostering key discoveries in pharmaceuticals, materials, and consumer products. While these N. Logar (&) Belfer Center for Science and International Affairs, John F. -
Sulfur Bonded Unsymmetrical Borole Complexes: Synthetic, Spectroscopic and Biocidal Aspects
SULFUR BONDED UNSYMMETRICAL BOROLE COMPLEXES: SYNTHETIC, SPECTROSCOPIC AND BIOCIDAL ASPECTS Taruna Pandey1, V. P. Singh2 and R. V. Singh1* 1 Department of Chemistry, University of Rajasthan, Jaipur-302004, India 2 DSME, S.C.E.R.T., Varun Marg, Defence Colony, New Delhi-110024, India ABSTRACT Synthesis, characterization and biological activities of some of the unsymmetrical borole complexes containing B-S and B<-N bonds are described. The sulfur containing conjugated bases were prepared by the condensation of caibonyl compounds with thiosemicarbazide. The resulting complexes have been characterized by elemental analysis, molecular weight determinations and spectral studies including IR, Ή NMR, "Β NMR and ,3C NMR. The spectroscopic results showed that the conjugated bases behave in a bidentate fashion, whereas, the complexes display a tetracoordinated environment around the boron atom as steriochemically active lone pair is also included in the coordinated sphere. The conjugated bases and their respective boron complexes have been screened for their antifungal and antibacterial properties. INTRODUCTION Recently, few references on bidentate ligands coordinated to boron through the azomethine nitrogen and the thiolo sulfur have been published in the literature1·2. These compounds are interesting in many respects. Some have got a number of applications in industry, biology and agriculture. Industrial applications of coordination compounds of boron have remained fairly limited. Boron analogues of carboxylic acids and peptides have been shown to possess interesting biological activities in particular as serine protease inhibitors3. Use of boron-nitrogen compound in neutron capture therapy of brain tumors have also been investigated4. Several organoboranes find promising applications in the synthesis of insect pheromones5. -
Project Number: JRK C061 DEVELOPING a STRATEGY
Project Number: JRK C061 DEVELOPING A STRATEGY FOR INTEGRATING GREEN CHEMISTRY IN THAILAND An Interactive Qualifying Project Report submitted to the Faculty of the WORCESTER POLYTECHNIC INSTITUTE In partial fulfillment of the requirements for the Degree of Bachelor of Science By ____________________ __________________ Gregor Kevrekian Amanda McCullough ____________________ Erica Moore Date: March 2, 2006 _______________________________ Professor Robert Krueger, Major Advisor _______________________________ Professor Seth Tuler, Major Advisor EXECUTIVE SUMMARY Recent industrialization and growth of the chemical industry in Thailand has led to severe environmental degradation (Iwami, 2001). Each year, 1.7 million tons of hazardous waste are generated in Thailand and 78% of this waste comes from industry (NRC-EHWM, 2005). This figure may be even higher since Thailand lacks a systematic way to inventory chemicals and hazardous waste (Kamolsiripichaiporn, 2006). Motivated by the need for long-term solutions to this growing problem of hazardous waste and toxic chemicals use, a new strategy to solve this problem has gained widespread recognition. It relies on a fundamental redesign of chemical reactions and processes for every type of application, and marks a conceptual revolution in the discipline of chemistry (Hutchison & Doxee, 2004). This approach is called “green chemistry.” As defined by Dr. Paul Anastas and Dr. John Warner (1998), green chemistry is “the utilization of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products” (p. 11). The goal of this project was to make recommendations for establishing a successful green chemistry network in Thailand and to design a workshop that would initiate this process. -
Activation of Diboron Reagents: the Development of Mild Conditions for the Synthesis of Unique Organoboron Compounds
Activation of diboron reagents: The development of mild conditions for the synthesis of unique organoboron compounds Steven Brandon Thorpe Dissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy In Chemistry Webster L. Santos, Chairman Paul R. Carlier David G. I. Kingston James M. Tanko March 23, 2012 Blacksburg, Virginia Keywords: borylation, diboron reagent, boronic ester, conjugate addition, copper catalysis © 2012 by Steven B. Thorpe Activation of diboron reagents: The development of mild conditions for the synthesis of unique organoboron compounds Steven Brandon Thorpe ABSTRACT The first successful synthesis and isolation of a boronic acid was reported in 1860 by Frankland in the pursuit of novel organometallic compounds. For more than a century, further studies of boronic acids were sparsely published. Suzuki and Miyaura jumpstarted the field in 1979 with an innovative carbon-carbon bond forming reaction employing an organoboronic acid and a carbon halide under palladium catalysis. Indeed, the Nobel Prize in Chemistry was awarded to Professor Akira Suzuki, along with Professors Richard Heck and Ei-ichi Negishi, in 2010 for their important contributions in palladium-catalyzed cross-coupling chemistry. Over the last 30 years, reports on organoboron compounds have increased exponentially. This dissertation describes the author’s contributions to the development of preparative methods for organoboronic acid derivatives