Jie DAI,a Megumu MUNAKATA (aKinki Univ. and IMS), Liang Ping WU,a Takayoshi KURODA-SOWAa and Yusaku SUENAGAa
[Inorg. Chim. Acta 258, 65 (1997)]
In copper(I) complex with 4,5-ethylenedithio-1,3-dithiole-2-thione (C5H4S5), [Cu4I4(C5H4S5)4], the metal center is a stepped Cu4I4 core coordinated by two ligands C5H4S5 in different ways. One is bidentate coordinated through thiocarbonyl group and thioether group and the other is monodentate coordinated only through thiocarbonyl group. The Cu4I4 clusters are bridged by bidentate C5H4S5 molecules to form one dimensional polymeric chains along c axis, and the chains further more form a three-dimensional network assembled by interchain S···S contacts, Figure 1. The shortest S···S contact distance is 3.257(2) Å.
Figure 1. Top view of [Cu4I4(C5H4S5)4] along coordination chains, showing a S····S contact network.