Bilayer Molecular Metal with a Polymeric Anion, β′′-(CNB-EDT-TTF)6 Ag∼7.95I∼9.19

(CNB-EDT-TTF)6Ag∼7.91I∼9.15 (CNB-EDT-TTF = 5-cyanobenzene-ethylenedithio-tetrathiafulvalene) is reported as the first bilayer conducting salt with a polymeric anion. The anion is a silver-deficient iodoargentate layered polymer with a composition close to Ag7.95I9.19, as deduced from single crystal...

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Detalles Bibliográficos
Autores: Brotas, Graça, Gama, Vasco da, Santos, Isabel C., Lopes, Elsa B., Rabaça, Sandra, Paixão, José A., Canadell, Enric, Almeida, Manuel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/215973
Acceso en línea:http://hdl.handle.net/10261/215973
Access Level:acceso abierto
Descripción
Sumario:(CNB-EDT-TTF)6Ag∼7.91I∼9.15 (CNB-EDT-TTF = 5-cyanobenzene-ethylenedithio-tetrathiafulvalene) is reported as the first bilayer conducting salt with a polymeric anion. The anion is a silver-deficient iodoargentate layered polymer with a composition close to Ag7.95I9.19, as deduced from single crystal X-ray diffraction. In spite of disorder in the silver iodide polyanion layer, and the large unit cell with six inequivalent donor molecules, this compound presents clear metallic properties down to 1.5 K, comparable to those of the β′′-type 4:1 salts of this donor with small discrete anions, with room temperature electrical conductivity in the range of 3–10 S/cm and thermoelectric power of ∼100 μV/K.

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