The first methyl antimony linked dimeric tetrathiafulvalene and tetraselenafulvalenes

In quest of novel organic donors, dimeric tetrathiafulvalene (TTF) and tetraselenafulvalenes (TSFs) linked by a single or double methyl antimony bridge, MeSb(TTF)2 (1), (MeSb)2(TSF)2 (cis-2 and trans-2), and MeSb(TSF)2 (3), have been synthesized. Singly bridged 1 and 3 show three pairs of redox waves, whereas doubly bridged cis-2 and trans-2 show two pairs of redox waves similarly to TSF. The X-ray structural analyses of neutral crystals, 1, cis-2 and trans-2, have succeeded. In their structures, antimony and chalcogen atoms form close intermolecular contacts useful in constructing supramolecular networks.

In quest of novel organic donors, dimeric tetrathiafulvalene (TTF) and tetraselenafulvalenes (TSFs) linked by a single or double methyl antimony bridge have been first prepared. The cyclic voltammetry studies and X-ray structure analyses of the present molecules are reported.Figure optionsDownload as PowerPoint slide