Annual Report 1982: Center for Analytical Chemistry

Total Page:16

File Type:pdf, Size:1020Kb

Annual Report 1982: Center for Analytical Chemistry AlllOb 171SS8 NBSIR 82-2620 Annual Report 1982 Center for Analytical Chemistry U.S. DEPARTMENT OF COMMERCE National Bureau of Standards National Measurement Laboratory Washington, DC 20234 October 1982 Final Issued December 1982 QC 100 U56 #82-2620 1982 C . 2 Prepared for U.S. DEPARTMENT OF COMMERCE National Bureau of Standards Washington, DC 20234 NBSIR 82-2620 ANNUAL REPORT 1982 CENTER FOR ANALYTICAL CHEMISTRY C. W. Reimann, R. A. Velapoldi, and J. K. Taylor, Editors U.S. DEPARTMENT OF COMMERCE National Bureau of Standards National Measurement Laboratory Washington, DC 20234 October 1982 Final Issued December 1982 Prepared for U.S. DEPARTMENT OF COMMERCE National Bureau of Standards Washington, DC 20234 U.S. DEPARTMENT OF COMMERCE, Malcolm Baldrige, Secretary NATIONAL BUREAU OF STANDARDS, Ernest Ambler, Director Certain commercial equipment, instruments, or materials are identified in this report to specify adequately the experimental procedure. Such identification does not imply recommendation or endorsement by the National Bureau of Standards , nor does it imply that the materials or equipment identified are necessarily the best available for the purpose. TABLE OF CONTENTS Page I. CENTER FOR ANALYTICAL CHEMISTRY A. Center Overview 1 B. Voluntary Standardization and Quality Assurance 7 C. Pilot National Environmental Specimen Bank Program 10 D. Service Analysis 21 E. Laser Analytical Chemistry Group 23 1. Group Overview 23 2. Selected Technical Reports 24 a. Computer Simulation of Charge Transport and Current Detection Following Ionization in Flames. 24 b. Characterization of Pulsed LEI Current Detection and Implications for Analytical Measurements. ... 26 c. Stark Modulated Infrared Diode Laser Spectroscopy 30 d. Measurement of the Isotopic Ratios: 12 C/ 13 C and 14 15 N/ N 33 3. Outputs and Interactions 34 II. INORGANIC ANALYTICAL RESEARCH DIVISION A. Division Overview 37 B. Selected Technical Accomplishments 47 1. High-Accuracy pH Measurements 47 2. Resonance Ionization Mass Spectrometry of Vanadium, Molybdenum, and Rhenium 48 3. Depth Profiling of Bismuth in Silicon and Tin with Low-Energy Neutrons 51 4. Determination of Provenience of Artifacts with Lead Isotope Ratio Measurements 54 5. Treatment of Sources of Variability in the Inductively Coupled Plasma (ICP) Technique 56 6. Effect of Natural Isotopic Variability on Accurate Determination of Sulfur by Neutron Activation Analysis 58 7. Application of ID/MS to the Determination of sulfur in Biological and Environmental Standards 60 8. Development of a Laser Mass Spectrometry Laboratory. 62 9. Design and Construction of a Modern Facility for the Production of Ultrapure Reagents 64 10. Improved Procedure for the Determination of Cyanide by Ion Chromatography with Electrochemical Detection . 65 11. Direct Determination of Calcium in Urine Using a Thermally-Regulated D.C. PI asma-Echel le Spectrometer 66 12. Determination of Ultratrace Concentrations of Chromium by Isotope Dilution Mass Spectrometry 67 i Page 13. Improved Radiochemical Procedures for High Sensitivity Measurements of Ultratrace Concentrations of Tin and Mercury 68 14. Isotopic Fractionation of Gallium on an Ion Exchange Column 69 15. Improved Sensitivity in Instrumental Activation Analysis Using the Compton Suppression Technique .... 70 16. Development of an Isotope Dilution Mass Spectro- metric Procedure for Iodine in Botanical Materials ... 72 17. Ion Optics of Magnetic Sector Mass Spectrometers .... 73 18. The Use of a Chromium Internal Standard for the Analysis of Diverse Iron-Chromium-Nickel Alloys 75 19. Development of a Precise Static Leach Test and the Evaluation of Simulated Nuclear Waste Glasses for a Reference Material 77 20. New Concepts in the Design and Fabrication of Fluorescent Glass Standards for Use in Nondestructive Crack Testing 78 21. Characterization of Selected Trace Elements in the Chesapeake Bay 79 22. Research to Develop Isotope Dilution Mass Spectrometry for Ultratrace Concentrations of Cadmium 84 23. The Use of Round Robins to Evaluate State-of-the-Art Uranium and Plutonium Measurements by Thermal Ionization Mass Spectrometry 85 24. Standard Reference Materials 87 C. Outputs and Interactions 90 III. ORGANIC ANALYTICAL RESEARCH DIVISION A. Division Overview 105 B. Selected Technical Accomplishments 119 1. The Effect of C 18 Surface Coverage on Selectivity in Reversed-Phase HPLC 119 2. Determination of Ambient Temperature Vapor Pressures of Polycyclic Aromatic Hydrocarbons 123 3. Determination of Polycyclic Aromatic Hydrocarbons in Complex Mixtures Using HPLC with Mobile Phase and Fluorescence Wavelength Programming 125 4. Vidicon Based Fluorescence Detection for Qualitative and Quantitative Analyses in HPLC 128 5. Certification of SRM 1649, Urban Dust/Organics, for Selected Polycyclic Aromatic Hydrocarbons 129 6. Determination of Nitro-Polycycl ic Aromatic Hydro- carbons Using Post-Column Reduction to Fluorescent Amino Derivatives ^1 7. Methods for the Determination of Vitamins in Milk. 135 8. Certification of an SRM for the Anticonvulsant Drugs Carbamazepine and Valproic Acid in Serum 137 Page 9. Research Results on the Analysis of Polychlorinated Biphenyls in Oils 139 10. Analysis of a California State Reference Material for Pesticides in Sediments 142 11. Design and Construction of a Sampling System for Woodburning Stove Gases and Particulate Samples 143 12. Development of Methods for the Determination of Toxic Organic Compounds in Aqueous Leachates of Hazardous Wastes and Development of a Quality Assurance Sludge Material 144 13. GC/MS Determination of Acidic and Basic Compounds in a Shale Oil Process Water 148 14. Development of an Isotope Dilution/Mass Spectrometric Definitive Method for the Determination of Serum Urea. 150 15. Improved Instrumentation for Organic Isotope Dilution/Mass Spectrometry Measurements 153 16. Preparation of Solutions of Stable Isotope Labeled Marker Compounds for Use in the Analysis of Priority Pollutants 156 17. Surface-Enhanced Raman Spectroscopy of N-Methyl- pyridinium Cation and Pyridine: Identification of Surface Species 158 18. Electrochemical and Spectroelectrochemical Studies of Copper and Iron Bleomycin Complexes 159 19. Polymer Modified Electrodes: Electrocatalytic Sensors for Detection of Organic Analytes 160 20. Theoretical Analysis of Charge Transport in Polymer-Modified Electrodes 161 21. Characterization of an Angiotensin I SRM by Proton NMR Spectroscopy at 400 MHz 163 22. The Synthesis, Purification, and Characterization of 2-Methyl thio-oxazol ine Derivatives of Pentoses and Hexoses 166 23. An Efficient Two-Step Synthesis of a Novel 15 N-Labeled Cyclonucleotide: 2,3'-Anhydro-l-$-D- 15 fructofuranosyluracil- N -l ,6 ' -diphosphate 168 2 ' 24. Confirmation of the Standard Wavelength for the 100 °S Point of the International Sugar Scale by Polarimetric Measurements with a Dye Laser 172 25. Implementation of and Initial Research in Two-Dimensional Electrophoresis for Protein Separations 174 26. Total Protein Content Certification of SRM 909, Human Serum 175 27. Construction of a Toxic Chemicals Handling Laboratory 175 C. Outputs and Interactions 177 Page IV. GAS AND PARTICULATE SCIENCE DIVISION A. Division Overview 191 B. Selected Technical Accomplishments 199 1. Isotopic Abundance Measurements with the Laser Microprobe Mass Analyzer 199 2. Microbeam Analysis of Diffusion — Induced Grain Boundary Migration 201 3. Electron Beam Broadening in Thin Films of Uranium Alloys Analyzed in the Analytical Electron Microscope. 204 4. Status of the Quantitative Electron Probe Microanalysis Programs FRAME and FRAME C 205 5. Crystallographic Contrast in Ion Microprobe Analysis of Inconel 206 6. Development of a Comprehensive Algorithm to Calculate the Spectral Output Distribution of X-Ray Tubes for X-Ray Spectrometry 208 7. Certification of Thin-glass Films as Standard Reference Materials for X-ray Spectrometry and Microanalysis 209 8. X-Ray Spectrometri c Analysis of NBS-SRM Bovine Liver and Pine Needles After Separation and Preconcentration 211 9. Evaluation of Personal Monitors 213 10. Measurement of the Temperature Dependence of the Ozone Absorption Cross-Section in the Ultraviolet. 216 11. Completion of Reference Ultraviolet Photometer for Ozone Calibrations 216 12. Photoacoustic Detection of HC1 217 13. A Study of Measurement Interference In The Photoacoustic Detection of N02 by Argon-Ion Laser Excitation 219 14. Accelerator Mass Spectrometry (AMS) 222 15. Receptor Modeling and Radiocarbon in Aerosols: Source Apportionment 224 16. Methodology for Vapor Pressure Measurements of Organics in the 10 to 10~ 5 Pascal Range 226 17. Development of Multicomponent Toxic Organics-in-Ai r Standards 228 18. Standards for Measurement of Atmospheric Carbon Dioxide 229 19. Development of Protocols for Providing Traceability of Commercial Gas Standards to NBS SRM Gas Mixtures. 231 20. Design and Evaluation of a High-Rate Passive Sampler for Ambient Levels of Nitrogen Dioxide 234 36 40 21. Development of Mixtures of Ar and Ar for Characterization of the Atmosphere of Venus 236 22. Development of Parts-per-Bi 1 1 ion Nitrous Oxide-in-Air Standard Reference Materials 237 C. Outputs and Interactions 240 IV I. Center for Analytical Chemistry Curt W. Reimann, Director Ranee A. Velapoldi, Deputy Director A. Center Overview The Center for Analytical Chemistry develops and maintains the scientific competences and the experimental facilities necessary to provide the Nation with the basis for uniform measurements through development of measurement methodology and
Recommended publications
  • Landolt-Börnstein Indexes of Organic Compounds Subvolumes A-I by V
    Landolt-Börnstein Indexes of Organic Compounds Subvolumes A-I By V. Vill, C. Bauhofer, G. Peters, H. Sajus, P. Weigner, LCI-Publisher and Chemistry Department of the University of Hamburg All printed index material has been used to build up the comprehensive Scidex database index developed by LCI Publisher GmbH, Hamburg For further information please visit www.lci-publisher.com From this database a CD-ROM and two online versions were derived. The first is attached to each of the printed subvolumes and the latter are offered for free use at the following addresses: Scidex Database online with graphical structure search on http://lb.chemie.uni-hamburg.de/ Or the easy to use html version on http://lb.chemie.uni-hamburg.de/static/ Landolt-Börnstein Numerical Data and Functional Relationships in Science and Technology New Series / Editor in Chief: W. Martienssen Index of Organic Compounds Subvolume A Compounds with 1 to 7 Carbon Atoms Editor: V. Vill Authors: V. Vill, G. Peters, H. Sajus 1 3 ISBN 3-540-66203-0 Springer-Verlag Berlin Heidelberg New York Library of Congress Cataloging in Publication Data Zahlenwerte und Funktionen aus Naturwissenschaften und Technik, Neue Serie Editor in Chief: W. Martienssen Index of Organic Compounds A: Editor: V. Vill At head of title: Landolt-Börnstein. Added t.p.: Numerical data and functional relationships in science and technology. Tables chiefly in English. Intended to supersede the Physikalisch-chemische Tabellen by H. Landolt and R. Börnstein of which the 6th ed. began publication in 1950 under title: Zahlenwerte und Funktionen aus Physik, Chemie, Astronomie, Geophysik und Technik.
    [Show full text]
  • Summary of Supportive Science Regarding Thimerosal Removal
    Summary of Supportive Science Regarding Thimerosal Removal Updated December 2012 www.safeminds.org Science Summary on Mercury in Vaccines (Thimerosal Only) SafeMinds Update – December 2012 Contents ENVIRONMENTAL IMPACT ................................................................................................................................. 4 A PILOT SCALE EVALUATION OF REMOVAL OF MERCURY FROM PHARMACEUTICAL WASTEWATER USING GRANULAR ACTIVATED CARBON (CYR 2002) ................................................................................................................................................................. 4 BIODEGRADATION OF THIOMERSAL CONTAINING EFFLUENTS BY A MERCURY RESISTANT PSEUDOMONAS PUTIDA STRAIN (FORTUNATO 2005) ......................................................................................................................................................................... 4 USE OF ADSORPTION PROCESS TO REMOVE ORGANIC MERCURY THIMEROSAL FROM INDUSTRIAL PROCESS WASTEWATER (VELICU 2007)5 HUMAN & INFANT RESEARCH ............................................................................................................................ 5 IATROGENIC EXPOSURE TO MERCURY AFTER HEPATITIS B VACCINATION IN PRETERM INFANTS (STAJICH 2000) .................................. 5 MERCURY CONCENTRATIONS AND METABOLISM IN INFANTS RECEIVING VACCINES CONTAINING THIMEROSAL: A DESCRIPTIVE STUDY (PICHICHERO 2002) ......................................................................................................................................................
    [Show full text]
  • CHEM 1411 Nomenclature Homework - Answers Part I
    1 CHEM 1411 Nomenclature Homework - Answers Part I 1. The following are a list of binary and pseudobinary ionic compounds. Write the name when the formula is given. Write the formula when the name is given. (a) AlCl3 aluminum chloride (k) rubidium oxide Rb2O (b) AuBr3 gold (III) bromide (l) chromium (III) selenide Cr2Se3 (c) Na2S sodium sulfide (m) barium iodide BaI2 (d) Cu3P2 copper (II) phosphide (n) copper (I) fluoride CuF (e) Fe(OH)2 iron (II) hydroxide (o) copper (II) fluoride CuF2 (f) NH4OH ammonium hydroxide (p) strontium cyanide Sr(CN)2 (g) Co(CH3COO)3 cobalt (III) acetate (q) mercury (II) bromide HgBr2 (h) Zn(SCN)2 zinc thiocyanate (r) mercury (I) bromide Hg2Br2 (i) CaCrO4 calcium chromate (s) magnesium permanganate Mg(MnO4)2 (j) K2Cr2O7 potassium dichromate (t) lithium nitride Li3N 2. The following are lists of covalent compounds. Write the name when a formula is given. Write the formula when given a name. (a) CSe2 carbon diselenide (h) dichlorine heptoxide Cl2O7 (b) SF6 sulfur hexafluoride (i) xenon tetrafluoride XeF4 (c) BrF5 bromine pentafluoride (j) carbon monoxide CO (d) P4O10 tetraphosphorous decoxide (k) oxygen O2 (e) Cl2O dichlorine oxide (l) diboron trioxide B2B O3 (f) NH3 ammonia (m) arsenic trifluoride AsF3 (g) N2 dinitrogen or nitrogen (n) diiodine I2 2 3. The following are lists of acids or acid-forming compounds. Write the name when the formula is given. Write the formula when the name is given. (a) H3PO2 hypophosphorous acid (k) hydrogen cyanide HCN (g) (b) H2SO4 sulfuric acid (l) periodic acid HIO4 (c) HClO hypochlorous acid (m) hypochlorous acid HClO (d) H3PO4 phosphoric acid (n) nitric acid HNO3 (e) HBrO4 perbromic acid (o) acetic acid CH3CO2H (f) HIO2 iodous acid (p) chloric acid HClO3 (g) HI (g) hydrogen iodide (q) perbromic acid HBrO4 (h) HI (aq) hydroiodic acid (r) hydrofluoric acid HF (aq) (i) HCN (aq) hydrocyanic acid (s) phosphorous acid H3PO3 (j) HBrO hypobromous acid (t) hydrosulfuric acid H2S (aq) 4.
    [Show full text]
  • The Thimerosal Controversy
    The Thimerosal Controversy Aimee Sutherland, VRG Research Assistant April 2013 Background In the early 1920s, a major public health concern was vaccine contamination with bacteria and other germs, which could result in the death of children receiving the vaccines from tainted vials. In the book “The Hazards of Immunization”, Sir Graham S. Wilson depicts an occurrence of contamination that happened in Australia in 1928 in which twelve out of twenty-one children died after receiving the vaccine for diphtheria due to multiple staphylococcal abscesses and toxemia (FDA). This incident spurred the development of preservatives for multi-dose vials of vaccine. In 1928, Eli Lilly was the first pharmaceutical company to introduce thimerosal, an organomercury compound that is approximately 50% mercury by weight, as a preservative that would thwart microbial growth (FDA). After its introduction as a germocide, thimerosal was often challenged for its efficacy rather than its safety. The American Medical Association (AMA) published an article that questioned the effectiveness of the organomercury compounds over the inorganic mercury ones (Baker, 245). In 1938 manufacturers were required to submit safety-testing information to the Food and Drug Administration (FDA). Although preservatives had already been incorporated into many vaccines, it was not until 1968 that preservatives were required for multi-dose vials in the United States Code of Federal Regulations (FDA). In 1970s the American population, increasingly concerned about environmental contamination with heavy metals, began to have reservations about the safety of organomercury and the controversy regarding thimerosal ensued after. The Controversy In 1990s, the use of thimerosal as a preservative became controversial and was targeted as a possible cause of autism because of its mercury content.
    [Show full text]
  • Low Molecular Weight Fluorescent Probes (Lmfps) to Detect the Group 12 Metal Triad
    chemosensors Review Low Molecular Weight Fluorescent Probes (LMFPs) to Detect the Group 12 Metal Triad Ashley D. Johnson, Rose M. Curtis and Karl J. Wallace * The Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS 39406, USA; [email protected] (A.D.J.); [email protected] (R.M.C.) * Correspondence: [email protected]; Tel.: +1-601-266-4715 Received: 2 March 2019; Accepted: 19 April 2019; Published: 28 April 2019 Abstract: Fluorescence sensing, of d-block elements such as Cu2+, Fe3+, Fe2+, Cd2+, Hg2+, and Zn2+ has significantly increased since the beginning of the 21st century. These particular metal ions play essential roles in biological, industrial, and environmental applications, therefore, there has been a drive to measure, detect, and remediate these metal ions. We have chosen to highlight the low molecular weight fluorescent probes (LMFPs) that undergo an optical response upon coordination with the group 12 triad (Zn2+, Cd2+, and Hg2+), as these metals have similar chemical characteristics but behave differently in the environment. Keywords: chemosensors; fluorescence; recognition; sensing; group 12 metals (zinc; cadmium; and mercury) 1. Introduction Sensors are used in every aspect of modern life; for example, many modern households have a carbon monoxide sensor or a smoke detector installed. In industry, fiber-optic sensors are used for monitoring process variables, such as temperature, pressure flow, and the level of a liquid. The environment requires sensors to monitor toxic gases and air pollution, and in clinical applications for the detection of medical conditions, i.e., Type 1 diabetes. The field of sensor technology has rapidly been expanding over the last several decades, and the field can be categorized into two broad areas (1) chemical sensors and (2) biosensors.
    [Show full text]
  • Ep 0398147 B1
    Europa,schesP_ MM M II II INI Ml M I M IN II I II J European Patent Office © Publication number: 0 398 147 B1 Office_„. europeen des brevets © EUROPEAN PATENT SPECIFICATION © Date of publication of patent specification: 09.11.94 © Int. CI.5: C08J 9/14, //(C08J9/14, C08L75:04) © Application number: 90108748.6 @ Date of filing: 09.05.90 © A foaming system for rigid urethane and Isoyanurate foams. ® Priority: 10.05.89 US 350184 © Proprietor: THE DOW CHEMICAL COMPANY (a Delaware corporation) @ Date of publication of application: 2030 Dow Center 22.11.90 Bulletin 90/47 Abbott Road Midland Michigan 48640 (US) © Publication of the grant of the patent: 09.11.94 Bulletin 94/45 @ Inventor: Smlts, Guldo Freddy Veldstraat 37 © Designated Contracting States: B-2110 Wljnegem (BE) AT BE CH DE DK ES FR GB GR IT LI LU NL SE Inventor: Grunbauer, Henri Jacobus Marie Schorploen 45 © References cited: NL-4501 HC Oostburg (BE) EP-A- 0 330 988 US-A- 3 583 921 US-A- 4 624 970 © Representative: Huber, Bernhard, Dlpl.-Chem. et al Patentanwalte H. Welckmann, Dr. K. Flncke F.A. Welckmann, B. Huber Dr. H. Llska, Dr. J. Prechtel, Dr. B. Bohm Postfach 86 08 20 uD-81635 \J i \J\J\J iviuMunchen ■ ■ vs ■ ■ v> ■ ■ (DE) QQ. yi^i— j 00 Oi oo Note: Within nine months from the publication of the mention of the grant of the European patent, any person ® may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition Q,.
    [Show full text]
  • Croconate Salts. New Bond-Delocalized Dianions, &Q
    JOURNAL OF RESEARCH of the National Bureau of Standards Volume 85, No.2, March·April1980 Pseudo-Oxocarbons. Synthesis of 2, 1,3-Bis-, and 1, 2, 3-Tris (Dicyanomethylene) Croconate Salts. New Bond-Delocalized Dianions, "Croconate Violet" and "Croconate Blue"* Alexander J. Fatiadit National Bureau of Standards, Washington, D.C. 20234 October 24,1979 Synthesis and characteri zation of new bond·delocalized dianions, e.g., 2, 1,3·bis·, 1,2, 3·tris (di cyanomethyl. ene) croconate salts have been described. The dianions re ported represent a new class of aromati c, nonbenze· noid co mpounds, named pseudo·oxocarbons. A study of their physical, analytical and chemical properties offer a new direction in the chemistry of oxocarbons. Key words: Acid; aromatic; bond·delocalized; croco nic; diani on; malononitrile; nonbenzenoid; oxocarbon; salt; synthesis 1. Introduction molecular properties of the croconic salts (e.g. 2 , dipotas­ sium salt) were first seriously investigated when a symmetri­ The bright ye ll ow dipotassium croconate 1 and croconic cal, delocalized structure fo r the dianion 2 was proposed by acid (1 , K = H, 4,5-dihydroxy-4--cyclopentene-l,2,3-trione) Yamada et aJ. [3] in 1958. A few years later [4], the d i anion 2 were first isolated by Gmelin [1]' in 1825, from the black, ex· and the related deltate [5], squarate, rhodizonate, and plosive, side-reaction product (e.g. K6 C6 0 6 + KOC=COK), tetrahydroxyquinone anions were recognized by West et aJ. by the reaction of carbon with potassium hydroxide, in a [2,4] as members of a new class of aromatic oxocarbons pioneer, industrial attempt to manufacture potassium.
    [Show full text]
  • Cobaltacycles May Collapse Upon Oxidation V
    On the Fate of Cobaltacycles in Cp*Co-mediated C-H bond Functionalization Catalysis: Cobaltacycles May Collapse upon Oxidation via Co(IV) species Fule Wu, Christophe Deraedt, Yann Cornaton, Laurent Ruhlmann, Lydia Karmazin, Corinne Bailly, Nathalie Kyritsakas, Nolwenn Le Breton, Sylvie Choua, Jean-Pierre Djukic To cite this version: Fule Wu, Christophe Deraedt, Yann Cornaton, Laurent Ruhlmann, Lydia Karmazin, et al.. On the Fate of Cobaltacycles in Cp*Co-mediated C-H bond Functionalization Catalysis: Cobaltacycles May Collapse upon Oxidation via Co(IV) species. 2021. hal-03292255 HAL Id: hal-03292255 https://hal.archives-ouvertes.fr/hal-03292255 Preprint submitted on 20 Jul 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. On the Fate of Cobaltacycles in Cp*Co-mediated C-H bond Func- tionalization Catalysis: Cobaltacycles May Collapse upon Oxidation via Co(IV) species. Fule Wu, a Christophe Deraedt, a Yann Cornaton,a Laurent Ruhlmann, b Lydia Karmazin, c Corinne Bailly,c Nathalie Kyritsakas,c Nolwenn Le Breton,d Sylvie Chouad and Jean-Pierre Djukica,*
    [Show full text]
  • Novel Non-Aqueous Symmetric Redox Materials for Redox Flow Battery Energy Storage
    Novel Non-Aqueous Symmetric Redox Materials for Redox Flow Battery Energy Storage Craig G. Armstrong This dissertation is submitted for the degree of Doctor of Philosophy January 2020 Department of Chemistry The search for ‘electrochemically promiscuous’ redox materials… - Craig Armstrong, 2017 ii Declaration This thesis has not been submitted in support of an application for another degree at this or any other university. It is the result of my own work and includes nothing that is the outcome of work done in collaboration except where specifically indicated. Many of the ideas in this thesis were the product of discussion with my supervisor Dr Kathryn E. Toghill. Dr Ross W. Hogue assisted in the acquisition of experimental results in chapters 4, 6 and 7. He is also credited for co-writing [3], of which Chapter 6 is based, and is a second author on [4]. Excerpts of this thesis have been published in the following academic publications [1–4]. [1] C.G. Armstrong, K.E. Toghill, Cobalt(II) complexes with azole-pyridine type ligands for non-aqueous redox-flow batteries: Tunable electrochemistry via structural modification, J. Power Sources. 349 (2017) 121–129. doi:10.1016/j.jpowsour.2017.03.034. [2] C.G. Armstrong, K.E. Toghill, Stability of molecular radicals in organic non- aqueous redox flow batteries: A mini review, Electrochem. Commun. 91 (2018) 19–24. doi:10.1016/j.elecom.2018.04.017. [3] R. Hogue, C. Armstrong, K. Toghill, Dithiolene Complexes of First Row Transition Metals for Symmetric Non-Aqueous Redox Flow Batteries, ChemSusChem. (2019) 1–11. doi:10.1002/cssc.201901702.
    [Show full text]
  • (12) United States Patent (10) Patent No.: US 7,981,324 B2 Hartmann Et Al
    USOO7981324B2 (12) United States Patent (10) Patent No.: US 7,981,324 B2 Hartmann et al. (45) Date of Patent: Jul. 19, 2011 (54) OXOCARBON-, PSEUDOOXOCARBON- AND 6,747,287 B1 6/2004 Toguchi et al. RADALENE COMPOUNDS AND THEIR USE 6,824,890 B2 11/2004 Bazan et al. 6,908,783 B1 6/2005 Kuehl et al. 6,972,334 B1 12/2005 Shibanuma et al. (75) Inventors: Horst Hartmann, Dresden (DE); Olaf 7,081,550 B2 7/2006 Hosokawa et al. Zeika, New York, NY (US); Andrea 7,345,300 B2 3/2008 Qin 2003, OO64248 A1 4/2003 Wolk Lux, Dresden (DE); Steffen Willmann, 2003/O165715 A1 9, 2003 Yoon et al. Dresden (DE) 2003/0234397 A1 12/2003 Schmid et al. 2004.00681 15 A1 4/2004 Lecloux et al. (73) Assignee: Novaled AG, Dresden (DE) 2004/0076853 A1 4/2004 Jarikov et al. 2005/0040390 A1 2, 2005 Pfeiffer et al. 2005, OO61232 A1 3/2005 Werner et al. (*) Notice: Subject to any disclaimer, the term of this 2005/OO72971 A1 4/2005 Marrocco et al. patent is extended or adjusted under 35 2005, OO86251 A1 4/2005 Hatscher et al. U.S.C. 154(b) by 299 days. 2005, 0110.009 A1 5/2005 Blochwitz-Nimoth et al. 2005, 0121667 A1 6/2005 Kuehl et al. (21) Appl. No.: 12/111,326 2006.0049.397 A1 3/2006 Pfeiffer et al. 2007/0O26257 A1 2/2007 Begley et al. 2007/0058426 A1 3/2007 Sokolik et al. (22) Filed: Apr. 29, 2008 2007/0090371 A1 4/2007 Drechsel et al.
    [Show full text]
  • Full Compositional Control of Pbs X Se 1− X Thin Films by the Use Of
    Dalton Transactions View Article Online PAPER View Journal | View Issue Full compositional control of PbSxSe1−x thin films by the use of acylchalcogourato lead(II) complexes Cite this: Dalton Trans., 2018, 47, 16938 as precursors for AACVD† Tagbo Emmanuel Ezenwa,a Paul D. McNaughter, *a James Raftery,a David J. Lewis a and Paul O’Brien *a,b Selenium and sulfur derivatives of lead(II) acylchalcogourato complexes have been used to deposit PbSxSe1−x thin films by AACVD. By variation of the mole ratio of sulfur and selenium precursors in the aerosol feed solution the full range of compositions of PbSxSe1−x was obtained, i.e. 0 ≥ x ≥ 1. The films Received 23rd August 2018, showed no contaminant phases demonstrating the potential for acylchalcogourato metal complexes as Accepted 26th September 2018 precursors for metal chalcogenide thin films. The crystal structure for bis[N,N-diethyl-N’-2- DOI: 10.1039/c8dt03443e naphthoylthioureato]lead(II) was solved and displayed the expected decreases in Pb–E bond lengths from rsc.li/dalton the previously reported selenium variant. Creative Commons Attribution 3.0 Unported Licence. – Introduction xanthates16 21 There are fewer reports on the use of single source precursors forming lead selenides due to the synthesis of Lead chalcogenide nanomaterials have potential within photo- noxious carbon diselenide when synthesising dithiocarbamates voltaic devices due to their advantageous bulk bandgaps in the and xanthates. N-Acyl chalcogoureas offer a convenient route to infra-red region (PbS = 0.41 eV, PbSe = 0.28 eV and PbTe = 0.31 acarbon–chalcogen double bond due to the availability and ease eV) and the ability to tune the band gap by quantum confine- of the use of potassium selenocyanate and potassium thio- This article is licensed under a ment.
    [Show full text]
  • Atmospheric Speciation of Ionic Organotin, Organolead and Organomercurycompounds in NE Bavaria (Germany) Jen-How Huanga,Ã, Otto Klemmb
    ARTICLE IN PRESS AE International – Europe Atmospheric Environment 38 (2004) 5013–5023 www.elsevier.com/locate/atmosenv Atmospheric speciation of ionic organotin, organolead and organomercurycompounds in NE Bavaria (Germany) Jen-How Huanga,Ã, Otto Klemmb aDepartment of Soil Ecology, Bayreuth Institute for Terrestrial Ecosystem Research (BITO¨K), Dr. Hans-Frisch-Str. 1-3, University of Bayreuth, D-95440 Bayreuth, Germany bInstitute for Landscape Ecology, Climatology, University of Mu¨nster, Robert-Koch-Str. 26, D-48149 Mu¨nster, Germany Received 1 October 2003; received in revised form 29 April 2004; accepted 14 June 2004 Abstract Organotin (OTC), organolead (OLC) and organomercury(OMC) compounds are highlytoxic and exhibit a potential negative effect on terrestrial ecosystems. Individual ionic OTC, OLC and OMC compounds were identified and their concentrations determined in the gas phase, aerosol particles, and bulk precipitation at a rural (Waldstein) and an urban (Bayreuth city) site in NE-Bavaria. At both sites, butyltins, methyltins, octyltins, trimethyllead and monomethylmercury concentrations in the gas phase were o100 pg mÀ3 (determined as corresponding Sn, Pb and Hg concentrations, respectively) with the dominance of tri- and di-substituted OTC and octyltins. The same species were found in bulk precipitation with concentrations o25 ng lÀ1 (Sn, Pb, Hg) with the dominance of mono-substituted OTC. In aerosols, only butyltins, dimethyltin and monomethyltin (o500 pg Sn mÀ3) were found and mono-substituted OTC predominated. No significant difference of concentrations of organometallic compounds in the atmosphere at the two sites was found. For OTC, the washout factors was in the order: mono-Xdi-4tri-substituted OTC, and the gas/ particle partition coefficients were mono-bdi-btri-substituted OTC.
    [Show full text]