Conductors based on metal-bisdicyanobenzodithiolate complexes

resumo

The physical properties of the partially oxidised complexes [(n-Bu)(4)N](2) [M(dcbdt)(2)](5)with M = Au and Ni (dcbdt = 4,5-dicyanobenzene-1,2-dithiolate) are compared and related to the different electronic bandfilling and their slightly different structure. Both compounds present a triclinic structure, space group P-1, with pentamerised segregated stacks of the complex along [-210]. The lower electrical conductivity with a larger activation energy, as well as the larger magnitude of thermopower and paramagnetic susceptibility, of the Ni compound are a consequence of both its different electronic bandfilling and more pronounced modulation of the stacking. (C) 2002 Elsevier Science B.V. All rights reserved.

palavras-chave

PHYSICAL-PROPERTIES

categoria

Materials Science; Physics; Polymer Science

autores

Alves, H; Santos, IC; Lopes, EB; Belo, D; Gama, V; Simao, D; Novais, H; Duarte, MT; Henriques, RT; Almeida, M

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