Di-tert-butyl­diiso­thio­cyanato­tin(IV)

IUCrData Pub Date : 2025-01-01 DOI:10.1107/S2414314624012446
Anne Kamrowski , Hans Reuter
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引用次数: 0

Abstract

Di-tert-butyl­diiso­thio­cyanato­tin(IV), tBu2Sn(NCS)2, exhibits a new kind of inter­molecular association via Sn⋯S inter­actions resulting in an anti­parallel, zigzag arrangement of the mol­ecular dipole moments. The chain-like structure motif is classified as Am2c according to its structure determining symmetry elements.
The title compound, [Sn(C4H9)2(NCS)2], which crystallizes with one and a half mol­ecules in the asymmetric unit, represents a new structure type for inter­molecular sulfur⋯tin inter­actions, which is characterized by an anti­parallel (A) arrangement of the dipole moments of the individual mol­ecules. In the resulting zigzag chains, the mol­ecules are related to each other by mirror planes (m) and twofold rotation axes (2), both perpendicular to the propagation plane, while translation is realized via a glide plane in direction of the crystallographic c axis, a combination of symmetry elements unique in the structural chemistry of diorganotin(IV) dihalides and pseudohalides, R2SnX2 with X = Hal or NCS. Its characteristics are subsumed in the term Am2c for this kind of inter­molecular association pattern. The tilting of the NSnN-planes in relation to the propagation plane is described in terms of spherical coordinates.
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