Figure 9
Four structural motifs for molecules of the general composition R2Sn(S2CNR′R′′)2: (a) skew trapezoidal bipyramidal, (b) five-coordinate trigonal–bipyramidal owing to a monodentate dithiocarbamate ligand, (c) cis-octahedral and (d) seven-coordinate pentagonal–bipyramidal owing to additional coordination by a heteroatom of the tin-bound residue. In all images, H atoms have been omitted, only the α-C atoms bound to nitrogen included and, in all but (d), only the α-C atom of the tin-bound residues shown. |