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Syntheses, Crystal Structures and Coordination Modes of Tri- and Di-organotin Derivatives with 2-Mercapto-4-methylpyrimidine by Chunlin Ma; Junhong Zhang; Guangru Tian; Rufen Zhang is a Chemistry article available to read on EtoBox.

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The organotin (IV) derivatives of 2-mercapto-4-methylpyrimidine (Hmpymt) R 3 SnL Ph 10, PhCH 2 11) were obtained by the reaction of the organotin(IV) chlorides R 3 SnCl or R 2 SnCl 2 with 2-mercapto-4-methylpyrimidine hydrochloride (HCl AE Hmpymt) in 1:1 or 1:2 molar ratio. All complexes 1-11 were characterized by elemental analyses, IR, 1 H, 13 C and temperature-dependent 119 Sn NMR spectra. Except for complexes 3 and 6, the structures of complexes 1, 2, 4, 5, 7, 8-11 were confirmed by X-ray crystallography. Including tin-nitrogen intramolecular interaction, the tin atoms of complexes 1-7 are all five-coordinated and their geometries are distorted trigonal bipyramidal. While the tin atoms of complexes 8-11 are six-coordinated and their geometries are distorted octahedral. Besides, the ligand adopts the different coordination modes to bond to tin atom between the complexes 1, 6, 7 and 2, 3, 4, 5, 8-11. Furthermore, intermolecular SnÁ Á ÁN or SnÁ Á ÁS interactions were recognized in crystal structures of complexes 4, 7 and 11, respectively.

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Author

Chunlin Ma; Junhong Zhang; Guangru Tian; Rufen Zhang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

2005

Language

EN

Field

Chemistry (Physical Sciences)