Reactivity of diorganotin(IV) dichlorides towards N, P, and O donor ligands: 
Crystal structure of [SnMe2Cl2(phendione)].

Momeni, B. Z.; Kia, R.; Ghanbarzadeh, S.

doi:10.1007/s00706-012-0733-5

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Reactivity of diorganotin(IV) dichlorides towards N, P, and O donor ligands: Crystal structure of [SnMe2Cl2(phendione)].

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Kia, R.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Momeni, B. Z., Kia, R., & Ghanbarzadeh, S. (2012). Reactivity of diorganotin(IV) dichlorides towards N, P, and O donor ligands: Crystal structure of [SnMe2Cl2(phendione)]. Monatshefte für Chemie, 143(11), 1479-1486. doi:10.1007/s00706-012-0733-5.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-238E-E

Abstract

The reactions of diorganotin(IV) dichlorides SnR2Cl2 (R = Me, n-Bu) with a series of ligands having N, P, or O donor atoms have been investigated. The reaction of SnR2Cl2 (R = Me, n-Bu) with the bidentate chelating pyridyl ligands of phendione (1,10-phenanthroline-5,6-dione) and ndppz (11-nitrodipyrido[3,2-a:2′,3′-c]phenazine) affords new hexa-coordinated 1:1 adducts with general formula SnR2Cl2L (R = Me, n-Bu; L = phendione, ndppz). On the other hand, SnMe2Cl2 reacted with xantphos [9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene] to yield the hexa-coordinated 1:2 adduct [SnMe2Cl2(xantphos)2] in the solid state. However, it dissociates in solution to give the penta-coordinated 1:1 complex [SnMe2Cl2(xantphos)]. Notably, the analogous n-Bu derivative does not react, even under forcing conditions. Finally, the tin(IV) compounds SnR2Cl2 (R = Me, n-Bu) react with dppap [2-(diphenylphosphinoamino)pyridine] to give the penta-coordinated 1:1 adducts [SnR2Cl2(dppap)] (R = Me, n-Bu). The resulting complexes have been characterized by nuclear magnetic resonance (NMR) spectroscopy and elemental analysis. The X-ray crystal structure determination of [SnMe2Cl2(phendione)] reveals that the compound crystallized with two independent molecules in the asymmetric unit with a trans-[SnMe2] configuration.