Trimethyltin dithiotetraphenylimidodiphosphinate

A more recent example of a one-dimensional polymer formed via S—Sn coordination is trimethyltin dithiotetraphenylimidodiphosphinate, Me3Sn(SPPh2NPPh2S) (168)408. The tin atoms are trigonal-bipyramidally coordinated with the two sulphur atoms occupying the axial positions. The Sn—S distances are quite different and amount to 2.517 and 3.627 A. The dithioimidophosphinato ligand usually chelates a metal centre, but in 168 it bridges two tin atoms to give a helical chain polymer. 

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See also in sourсe #XX -- [ ]

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