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Substitutional disorder in a hypervalent diorganotin(IV) dihalide.

ABSTRACT: The structure of bromidochloridobis[2-(dimethyl-amino-meth-yl)phen-yl]tin(IV), [SnBr(0.65)Cl(1.35)(C(9)H(12)N)(2)], contains two 2-(Me(2)NCH(2))C(6)H(4) units bonded to a Sn atom which lies on a twofold axis. The compound exhibits substitutional disorder of the halide atoms bonded to the Sn, with 1.35 occupancy for Cl and 0.65 for Br; it is isomorphous with the corresponding dichloride. The Sn atom is hexa-coordinated with a (C,N)(2)SnX(2) (X = Cl/Br) distorted octa-hedral core as a result of the strong intra-molecular N?Sn coordination trans to the Sn-X bonds (N1-Sn1-X1 = 165.8°). As a result of the inter-molecular contacts, viz. H?X and H?benzene inter-actions, the mol-ecules are arranged in a three-dimensional supra-molecular manner in the crystal structure.

SUBMITTER: Rotar A

PROVIDER: S-EPMC2947775 | biostudies-literature | 2007 Dec

REPOSITORIES: biostudies-literature

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Substitutional disorder in a hypervalent diorganotin(IV) dihalide.

Rotar Adina A Varga Richard A RA Silvestru Cristian C

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

The structure of bromidochloridobis[2-(dimethyl-amino-meth-yl)phen-yl]tin(IV), [SnBr(0.65)Cl(1.35)(C(9)H(12)N)(2)], contains two 2-(Me(2)NCH(2))C(6)H(4) units bonded to a Sn atom which lies on a twofold axis. The compound exhibits substitutional disorder of the halide atoms bonded to the Sn, with 1.35 occupancy for Cl and 0.65 for Br; it is isomorphous with the corresponding dichloride. The Sn atom is hexa-coordinated with a (C,N)(2)SnX(2) (X = Cl/Br) distorted octa-hedral core as a result of th ...[more]

PMID: 21200616

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