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SM ISO690:2012 CAJEVA, O., ALEKSANDROV, Grigorii, KRAVCHENKO, Andrey, KOSENKO, Irina, LOBANOVA, Irina, SIVAEV, Igor, BREGADZE, Vladimir, STARODUB, Vladimir, DYACHENKO, Oleg. New organic conductors with iodine cobalt bis(dicarbollide) anions. In: Materials Science and Condensed Matter Physics, Ed. 6, 11-14 septembrie 2012, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2012, Editia 6, p. 67. ISBN 978-9975-66-290-1. |
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Materials Science and Condensed Matter Physics Editia 6, 2012 |
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Conferința "Materials Science and Condensed Matter Physics" 6, Chișinău, Moldova, 11-14 septembrie 2012 | |
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Pag. 67-67 | |
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Radical cation salts and charge transfer complexes based on tetrathiafulvalene (TTF) and their derivatives constitute a wide class of organic materials with transport properties ranging from insulating to superconducting. The iron group metal bis(1,2-dicarbollide) complexes [3,3’-M(1,2C2B9H11)2]- (M = Fe, Co, Ni) have been proposed as counterions for synthesis of new radical cation-based molecular materials. Substitution of hydrogen atoms in these complexes for various atoms and groups opens practically unlimited perspectives of their modificationformulaIn this report we describe synthesis, crystal structure and electrical conductivity of tetrathiafulvalene salts of iodine derivatives of cobalt bis(dicarbollide) anion: (ET)[9,9’(12’)-I23,3’-Co(1,2-C2B9H10)2] (1), (TTF)[9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2] (2), (TTF)[8,8’-I2-3,3’Co(1,2-C2B9H10)2] (3), (BMDT)4[8,8’-I2-3,3’-Co(1,2-C2B9H10)2] (4), and (ET)2[8,8’-I2-3,3’-Co(1,2C2B9H10)2] (5). The geometries of the [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- and [9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2]anions are presented in Fig. 1. The dicarbollide ligands of the [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- anion have transoid conformation, whereas the cisoid conformation is formed in [9,9’,12,12’-I4-3,3’Co(1,2-C2B9H9)2]- anion.figureFig. 1. Anions [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- and [9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2]All the radical cation salts prepared were found to be semiconductors. The activation energy of 1-5, Ea, are ranging from 0.2 to 0.4 eV. The room temperature conductivity are 3×10-5 Ω-1cm-1, 6×10-7 Ω-1cm-1, 5×10-2 Ω-1cm-1, 0.25 Ω-1cm-1, and 6 × 10-3 Ω-1cm-1 for salts 1-5, respectively. The authors want to acknowledge Russian Foundation for Basic Research (project No 11-03-00702). |
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<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <creators> <creator> <creatorName>Cajeva, O.N.</creatorName> <affiliation>Institute of Problems of Chemical Physics, Russian Academy of Sciences, Rusia</affiliation> </creator> <creator> <creatorName>Alexandrov, G.G.</creatorName> <affiliation>Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences(IGIC RAS), Rusia</affiliation> </creator> <creator> <creatorName>Cravcenco, A.</creatorName> <affiliation>Харьковский национальный университет им. В. Н. Каразина, Ucraina</affiliation> </creator> <creator> <creatorName>Kosenko, I.</creatorName> <affiliation>Институт элементоорганических соединений им. А.Н.Несмеянова РАН, Rusia</affiliation> </creator> <creator> <creatorName>Lobanova, I.</creatorName> <affiliation>Институт элементоорганических соединений им. А.Н.Несмеянова РАН, Rusia</affiliation> </creator> <creator> <creatorName>Sivaev, I.</creatorName> <affiliation>Институт элементоорганических соединений им. А.Н.Несмеянова РАН, Rusia</affiliation> </creator> <creator> <creatorName>Bregadze, V.I.</creatorName> <affiliation>Институт элементоорганических соединений им. А.Н.Несмеянова РАН, Rusia</affiliation> </creator> <creator> <creatorName>Starodub, V.</creatorName> <affiliation>Харьковский национальный университет им. В. Н. Каразина, Ucraina</affiliation> </creator> <creator> <creatorName>Diacenko, O.A.</creatorName> <affiliation>Institute of Problems of Chemical Physics, Russian Academy of Sciences, Rusia</affiliation> </creator> </creators> <titles> <title xml:lang='en'>New organic conductors with iodine cobalt bis(dicarbollide) anions</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2012</publicationYear> <relatedIdentifier relatedIdentifierType='ISBN' relationType='IsPartOf'>978-9975-66-290-1</relatedIdentifier> <dates> <date dateType='Issued'>2012</date> </dates> <resourceType resourceTypeGeneral='Text'>Conference Paper</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p>Radical cation salts and charge transfer complexes based on tetrathiafulvalene (TTF) and their derivatives constitute a wide class of organic materials with transport properties ranging from insulating to superconducting. The iron group metal bis(1,2-dicarbollide) complexes [3,3’-M(1,2C2B9H11)2]- (M = Fe, Co, Ni) have been proposed as counterions for synthesis of new radical cation-based molecular materials. Substitution of hydrogen atoms in these complexes for various atoms and groups opens practically unlimited perspectives of their modification</p><p>formula</p><p>In this report we describe synthesis, crystal structure and electrical conductivity of tetrathiafulvalene salts of iodine derivatives of cobalt bis(dicarbollide) anion: (ET)[9,9’(12’)-I23,3’-Co(1,2-C2B9H10)2] (1), (TTF)[9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2] (2), (TTF)[8,8’-I2-3,3’Co(1,2-C2B9H10)2] (3), (BMDT)4[8,8’-I2-3,3’-Co(1,2-C2B9H10)2] (4), and (ET)2[8,8’-I2-3,3’-Co(1,2C2B9H10)2] (5). The geometries of the [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- and [9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2]anions are presented in Fig. 1. The dicarbollide ligands of the [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- anion have transoid conformation, whereas the cisoid conformation is formed in [9,9’,12,12’-I4-3,3’Co(1,2-C2B9H9)2]- anion.</p><p>figure</p><p>Fig. 1. Anions [8,8’-I2-3,3’-Co(1,2-C2B9H10)2]- and [9,9’,12,12’-I4-3,3’-Co(1,2-C2B9H9)2]All the radical cation salts prepared were found to be semiconductors. The activation energy of 1-5, Ea, are ranging from 0.2 to 0.4 eV. The room temperature conductivity are 3×10-5 Ω-1cm-1, 6×10-7 Ω-1cm-1, 5×10-2 Ω-1cm-1, 0.25 Ω-1cm-1, and 6 × 10-3 Ω-1cm-1 for salts 1-5, respectively. The authors want to acknowledge Russian Foundation for Basic Research (project No 11-03-00702).</p></description> </descriptions> <formats> <format>application/pdf</format> </formats> </resource>