标题

BETS3[Cu2(C2O4)3](CH3OH)2: an organic–inorganic hybrid antiferromagnetic metal (BETS = bisethylene(tetraselenfulvalene))

期刊

CrystEngComm

作者

Bin Zhang, Yan Zhang, Zheming Wang, Song Gao, Yanjun Guo, Fen Liu and  Daoben Zhu

摘要

The organic–inorganic hybrid charge-transfer salt of BETS and a two-dimensional oxalate–metalate: BETS3[Cu2(C2O4)3](CH3OH)2 (1) was obtained by the electrochemical oxidation of neutral BETS in the presence of [(C2H5)3NH]2Cu(C2O4)2 in a C6H5Cl–CH3OH solution. 1 crystallizes in a triclinic crystal system with cell parameters: a = 8.7716(3) Å, b = 16.9903(6) Å, c = 20.5716(7) Å, α = 104.794(2)°, β = 102.209(2)°, γ = 92.243(2)°, V = 2883.1(2) Å3 and P1 in 293 K. Donor layers and Jahn–Teller distorted honeycomb anions stack alternatively along the c axis in 1. The crystal structure of 1 is similar to the reported compound [BEDT–TTF]3[Cu2(C2O4)3](CH3OH)2 (BEDT–TTF = bis(ethylene-dithio)tetrathiafulvalene, ET). Compared with the BEDT–TTF salt, the c axis expands by 2.3% at room temperature, the shorter interaction between the donor molecules increases, the room temperature conductivity increases from 4 S cm−1 to 140 S cm−1 and the antiferromagnetic interaction between the metal atoms with Jahn–Teller distortion through the oxalato-bridge enhances.

原文链接

http://pubs.rsc.org/en/content/articlelanding/2013/ce/c2ce26552d#!divAbstract