TTF charge transfer salts containing cyanometallate anions [M(phen)(CN)(4)](-) (M = Cr or Fe; phen=1,10-phenanthroline)

摘要

Two new charge transfer salts of TTF with the counter anions [M(phen)(CN)(4)](-) (phen = 1,10-phenanthroline, M = Cr (I) and Fe (II)) are described. The structures consist of alternating stacks of dimerised TTF+ cations and [M(phen)(CN)4]- anions and they are linked together by many short S center dot center dot center dot S contacts and hydrogen bonds. Within the organic stack, two dimerised TTF+ cations are arranged in a slipped face-to-face mode with short intra-dimer and long inter-dimer S center dot center dot center dot S distances. Strong antiferromagnetic exchange was found in the TTF+ dimers. Conductivity measurements show that compound I is a semiconductor. (c) 2006 Elsevier B.V. All rights reserved.