Syntheses and X-ray structures of a series of V2S4(RCS2)4 (R=alkoxy, dialkylamino) complexes

A simple synthetic procedure leading to the V2(S2)2(RCS2)4 species (R=Et2N (1), cyclo-C4H8N (2), n-Bu2N (3), EtO (4), i-PrO (5)) has been developed. X-ray structures of 3 and 5 have been reported, featuring the centrosymmetric molecules with VV distances 2.850(3) Å for 3 and 2.838(2) Å for 5.The FAB mass spectra were recorded. In all cases molecular peaks are observed. Fragmentation patterns are discussed.