Autori: V. Berceanu, C. Crainic, I. Haiduc, M.F. Mahon, K.C. Molloy, M.M. Venter* and P.J. Wilson

Editorial: J. Chem. Soc. Dalton Trans, p.1036, 2002.

Rezumat:

Seven new organotin complexes of 5-mercapto-3-phenyl-1,3,4-thiadiazoline-2-thione (I), RnSn(PhN2C2S3)4-n [n = 1, R = Bu (1); n = 2, R = Ph (2), Bu (3), Me (4) and n = 3, Ph (5), Bu (6), Me (7)] along with the 4,4′-Bipy and 4-PyNH2 adducts of 7, [Me3Sn(PhN2C2S3)]2.(4,4´-bipy) (8) and [Me3Sn(4-PyNH2)2]+[PhN2C2S3]- (9) respectively, have been synthesised. The coordination behaviour of I in 1 – 8 ranges from S(1) monodentate to S(1) + S(3) bidentate bridging, while the crystal structure of 9 displays the ligand as non-bonded anion. The supramolecular structures of 2, 7 and 8 have been found to consist of 1-D molecular chains build up by Sn<-S (7) or S...S (2, 8) intermolecular linkages. Additionally, the 1-D polymers of 7 aggregate in 'ribbon'-type double chains through S...S interactions and further self-organise via Ph...Ph face-to-face pi-stacking leading to a 3-D network. Extended intermolecular N-H...S interactions in the crystal lattice of 9 link the molecules in a 3-D network.

Cuvinte cheie: organostaniu, supramolecular, structura cristalina // organotin, supramolecular, crystal structure