New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br
More than one hundred and twenty conducting salts based on the organic donor-molecule BEDT-TTF are known, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene (abbreviated herein as ET). Several of the early salts possessed tetrahedral and octahedral anions, such as (ET){sub 2}ClO{sub 4}(TCE), (E...
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ftosti:oai:osti.gov:6298754 2023-07-30T04:02:56+02:00 New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br Wang, H.H. Beno, M.A. Carlson, K.D. Geiser, U. Kini, A.M. Montgomery, L.K. Thompson, J.E. Williams, J.M. 2008-02-07 application/pdf http://www.osti.gov/servlets/purl/6298754 https://www.osti.gov/biblio/6298754 unknown http://www.osti.gov/servlets/purl/6298754 https://www.osti.gov/biblio/6298754 36 MATERIALS SCIENCE 75 CONDENSED MATTER PHYSICS SUPERCONDUCTIVITY AND SUPERFLUIDITY BEDT-TTF SUPERCONDUCTIVITY MERCURY COMPLEXES ORGANOMETALLIC COMPOUNDS SILVER COMPLEXES AMMONIA ANIONS CRYSTAL GROWTH CRYSTALLIZATION LIGANDS ORGANIC COMPOUNDS POLYMERS SALTS SUPERCONDUCTORS TEMPERATURE DEPENDENCE THIOCYANATES TRANSITION TEMPERATURE ANTITHYROID DRUGS CARBONIC ACID DERIVATIVES CHARGED PARTICLES COMPLEXES DRUGS ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES HETEROCYCLIC COMPOUNDS HORMONE ANTAGONISTS HYDRIDES HYDROGEN COMPOUNDS IONS NITROGEN COMPOUNDS NITROGEN HYDRIDES ORGANIC SULFUR COMPOUNDS ORGANIC SUPERCONDUCTORS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPLEXES 2008 ftosti 2023-07-11T10:46:58Z More than one hundred and twenty conducting salts based on the organic donor-molecule BEDT-TTF are known, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene (abbreviated herein as ET). Several of the early salts possessed tetrahedral and octahedral anions, such as (ET){sub 2}ClO{sub 4}(TCE), (ET){sub 2}PF{sub 6}, (ET){sub 2}ReO{sub 4}, and (ET){sub 2}BrO{sub 4}. The perchlorate salt is metallic to 1.4 K,{sup 1} and the perrenate derivative was the first ET based organic superconductor ({Tc} 2 K, 4.5 kbar). Since the discovery of ambient pressure superconductivity in {beta}-(ET){sub 2}I{sub 3} ({Tc} 1.4 K),{sup 5} other isostructural {beta}-(ET){sub 2}X salts have been prepared with higher {Tc}'s. A structure-property correlation for the {beta}-type salts has been reviewed in this volume; it predicts that {Tc}'s higher than 8K are possible if {beta}-salts with linear anions longer than I{sub 3}{sup {minus}} can be synthesized. During the search for new linear anions, a variety of compounds with discovered with polymeric anions. The report of superconductivity in {kappa}-(ET){sub 4}Hg{sub 3}X{sub 8} (X = Cl, {Tc} 5.4 K 29 kbar and X = Br, {Tc} 4.3 K ambient pressure and 6.7 K 3.5 kbar) and {kappa}-(ET){sub 2}Cu(NCS){sub 2} ({Tc} 10.4 K) further stimulated the search for novel polymeric anions. A general synthetic strategy for preparing new salts containing polymeric anions is to couple a coordinatively unsaturated neutral transition metal halide/pseudohalide with a simple halide or pseudohalide during an electrocrystallization synthesis. In this article, the authors discuss three new ambient pressure organic superconductors with novel polymeric anions, {alpha}-(ET){sub 2}(NH{sub 4})Hg(SCN){sub 4}, {beta}m-(BO){sub 3}Cu{sub 2}(NCS){sub 3} and {kappa}-(ET){sub 2}Cu(N(CN){sub 2})Br. 48 refs., 8 figs., 2 tabs. Other/Unknown Material Carbonic acid SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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36 MATERIALS SCIENCE 75 CONDENSED MATTER PHYSICS SUPERCONDUCTIVITY AND SUPERFLUIDITY BEDT-TTF SUPERCONDUCTIVITY MERCURY COMPLEXES ORGANOMETALLIC COMPOUNDS SILVER COMPLEXES AMMONIA ANIONS CRYSTAL GROWTH CRYSTALLIZATION LIGANDS ORGANIC COMPOUNDS POLYMERS SALTS SUPERCONDUCTORS TEMPERATURE DEPENDENCE THIOCYANATES TRANSITION TEMPERATURE ANTITHYROID DRUGS CARBONIC ACID DERIVATIVES CHARGED PARTICLES COMPLEXES DRUGS ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES HETEROCYCLIC COMPOUNDS HORMONE ANTAGONISTS HYDRIDES HYDROGEN COMPOUNDS IONS NITROGEN COMPOUNDS NITROGEN HYDRIDES ORGANIC SULFUR COMPOUNDS ORGANIC SUPERCONDUCTORS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPLEXES |
spellingShingle |
36 MATERIALS SCIENCE 75 CONDENSED MATTER PHYSICS SUPERCONDUCTIVITY AND SUPERFLUIDITY BEDT-TTF SUPERCONDUCTIVITY MERCURY COMPLEXES ORGANOMETALLIC COMPOUNDS SILVER COMPLEXES AMMONIA ANIONS CRYSTAL GROWTH CRYSTALLIZATION LIGANDS ORGANIC COMPOUNDS POLYMERS SALTS SUPERCONDUCTORS TEMPERATURE DEPENDENCE THIOCYANATES TRANSITION TEMPERATURE ANTITHYROID DRUGS CARBONIC ACID DERIVATIVES CHARGED PARTICLES COMPLEXES DRUGS ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES HETEROCYCLIC COMPOUNDS HORMONE ANTAGONISTS HYDRIDES HYDROGEN COMPOUNDS IONS NITROGEN COMPOUNDS NITROGEN HYDRIDES ORGANIC SULFUR COMPOUNDS ORGANIC SUPERCONDUCTORS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPLEXES Wang, H.H. Beno, M.A. Carlson, K.D. Geiser, U. Kini, A.M. Montgomery, L.K. Thompson, J.E. Williams, J.M. New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
topic_facet |
36 MATERIALS SCIENCE 75 CONDENSED MATTER PHYSICS SUPERCONDUCTIVITY AND SUPERFLUIDITY BEDT-TTF SUPERCONDUCTIVITY MERCURY COMPLEXES ORGANOMETALLIC COMPOUNDS SILVER COMPLEXES AMMONIA ANIONS CRYSTAL GROWTH CRYSTALLIZATION LIGANDS ORGANIC COMPOUNDS POLYMERS SALTS SUPERCONDUCTORS TEMPERATURE DEPENDENCE THIOCYANATES TRANSITION TEMPERATURE ANTITHYROID DRUGS CARBONIC ACID DERIVATIVES CHARGED PARTICLES COMPLEXES DRUGS ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES HETEROCYCLIC COMPOUNDS HORMONE ANTAGONISTS HYDRIDES HYDROGEN COMPOUNDS IONS NITROGEN COMPOUNDS NITROGEN HYDRIDES ORGANIC SULFUR COMPOUNDS ORGANIC SUPERCONDUCTORS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES THERMODYNAMIC PROPERTIES TRANSITION ELEMENT COMPLEXES |
description |
More than one hundred and twenty conducting salts based on the organic donor-molecule BEDT-TTF are known, where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene (abbreviated herein as ET). Several of the early salts possessed tetrahedral and octahedral anions, such as (ET){sub 2}ClO{sub 4}(TCE), (ET){sub 2}PF{sub 6}, (ET){sub 2}ReO{sub 4}, and (ET){sub 2}BrO{sub 4}. The perchlorate salt is metallic to 1.4 K,{sup 1} and the perrenate derivative was the first ET based organic superconductor ({Tc} 2 K, 4.5 kbar). Since the discovery of ambient pressure superconductivity in {beta}-(ET){sub 2}I{sub 3} ({Tc} 1.4 K),{sup 5} other isostructural {beta}-(ET){sub 2}X salts have been prepared with higher {Tc}'s. A structure-property correlation for the {beta}-type salts has been reviewed in this volume; it predicts that {Tc}'s higher than 8K are possible if {beta}-salts with linear anions longer than I{sub 3}{sup {minus}} can be synthesized. During the search for new linear anions, a variety of compounds with discovered with polymeric anions. The report of superconductivity in {kappa}-(ET){sub 4}Hg{sub 3}X{sub 8} (X = Cl, {Tc} 5.4 K 29 kbar and X = Br, {Tc} 4.3 K ambient pressure and 6.7 K 3.5 kbar) and {kappa}-(ET){sub 2}Cu(NCS){sub 2} ({Tc} 10.4 K) further stimulated the search for novel polymeric anions. A general synthetic strategy for preparing new salts containing polymeric anions is to couple a coordinatively unsaturated neutral transition metal halide/pseudohalide with a simple halide or pseudohalide during an electrocrystallization synthesis. In this article, the authors discuss three new ambient pressure organic superconductors with novel polymeric anions, {alpha}-(ET){sub 2}(NH{sub 4})Hg(SCN){sub 4}, {beta}m-(BO){sub 3}Cu{sub 2}(NCS){sub 3} and {kappa}-(ET){sub 2}Cu(N(CN){sub 2})Br. 48 refs., 8 figs., 2 tabs. |
author |
Wang, H.H. Beno, M.A. Carlson, K.D. Geiser, U. Kini, A.M. Montgomery, L.K. Thompson, J.E. Williams, J.M. |
author_facet |
Wang, H.H. Beno, M.A. Carlson, K.D. Geiser, U. Kini, A.M. Montgomery, L.K. Thompson, J.E. Williams, J.M. |
author_sort |
Wang, H.H. |
title |
New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
title_short |
New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
title_full |
New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
title_fullStr |
New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
title_full_unstemmed |
New ambient pressure organic superconductors:. alpha. -(BEDT-TTF) sub 2 (NH sub 4 )Hg(SCN) sub 4 ,. beta. m-(BEDO-TTF) sub 3 Cu sub 2 (NCS) sub 3 , and. kappa. -(BEDT-TTF) sub 2 Cu(N(CN) sub 2 )Br |
title_sort |
new ambient pressure organic superconductors:. alpha. -(bedt-ttf) sub 2 (nh sub 4 )hg(scn) sub 4 ,. beta. m-(bedo-ttf) sub 3 cu sub 2 (ncs) sub 3 , and. kappa. -(bedt-ttf) sub 2 cu(n(cn) sub 2 )br |
publishDate |
2008 |
url |
http://www.osti.gov/servlets/purl/6298754 https://www.osti.gov/biblio/6298754 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
http://www.osti.gov/servlets/purl/6298754 https://www.osti.gov/biblio/6298754 |
_version_ |
1772813849497436160 |