Electron diffraction study of the molecular structure of di-tert-butyldichlorostannane in the gas phase

Belyakov, A. V.; Litvinov, O. A.; Bogoradovskii, E. T.; Girbasova, N. V.; Zavgorodnii, V. S.

doi:10.1007/bf00750173

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“…In the gas phase, diorganotin(IV) dihalides consist of monomeric molecules of point-group symmetry C 2v with a considerable dipole moment (Lorberth & Nö th, 1965) in the direction of the twofold axis of symmetry. For dimethyltin(IV) dichloride, Me 2 SnCl 2 (Fujii & Kimura, 1971), and di-tertbutyltin(IV) dichloride, t Bu 2 SnCl 2 (Belyakov et al, 1988), the four main structural parameters (Sn-Hal, Sn-C, Hal-Sn-Hal and C-Sn-C) were determined by electron diffraction experiments. Deviations from a tetrahedral bond arrangement at the Sn atom mainly result from bond-angle distortions, which are small in the case of Me 2 SnCl 2 (Cl-Sn-Cl = 107.5AE3.9 ) but considerable for t Bu 2 SnCl 2 (C-Sn-C = 118.6AE4.2 and Cl-Sn-Cl = 103.1AE4.5 ).…”

Section: Commentmentioning

confidence: 99%

Dibromodiphenylstannane: isolated centrosymmetric dimers as a new structure motif for the intermolecular association of diorganotin(IV) dihalides

Reuter

2012

Acta Crystallogr C

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In the crystalline state, the low-melting title compound [common name: diphenyltin(IV) dibromide], [SnBr(2)(C(6)H(5))(2)], consists of distorted tetrahedral molecules with compressed halide and enlarged carbon opening angles of 102.741 (9) and 123.53 (8)°, respectively, and Sn-C and Sn-Br bond lengths of 2.109 (2)/2.113 (2) and 2.4710 (3)/2.4947 (3) Å, respectively. Intermolecular Sn...Br interactions, typical for diorganotin(IV) dihalides, R(2)SnHal(2) (with Hal = Cl, Br, I), and sterically less demanding organic groups lead to the formation of a hitherto unknown association pattern consisting of centrosymmetric dimers with an antiparallel orientation of the dipole moments and two weak intermolecular Sn...Br distances of 3.8482 (3) Å between one of the two Br atoms and its neighbouring Sn atom, and vice versa. The second Br atom is not involved in intermolecular interactions and lies somewhat outside the association plane that, therefore, is not coplanar [interplanar angle = 1.750 (2)°] with the tin-halide plane. The new structure motif of intermolecular tin-halide interaction can be classified as 2a(i), which indicates the number of molecules (i.e. '2') composing the oligomer, the antiparallel orientation (i.e. 'a') of their dipole moments and the centre of symmetry (i.e. 'i') giving rise to the association pattern.

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Section: Commentmentioning

confidence: 99%

Dibromodiphenylstannane: isolated centrosymmetric dimers as a new structure motif for the intermolecular association of diorganotin(IV) dihalides

Reuter

2012

Acta Crystallogr C

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Electron diffraction study of the molecular structure of di-tert-butyldichlorostannane in the gas phase

Cited by 1 publication

References 29 publications

Dibromodiphenylstannane: isolated centrosymmetric dimers as a new structure motif for the intermolecular association of diorganotin(IV) dihalides

Dibromodiphenylstannane: isolated centrosymmetric dimers as a new structure motif for the intermolecular association of diorganotin(IV) dihalides

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