AI Article Synopsis
- The complex [Sn(CH)(CO)(CHOS)] forms by the addition of dimethyl sulfoxide (DMSO) to the previously reported [CO(SnPh)] complex, leading to penta-coordination of Sn atoms in a trigonal-bipyramidal arrangement.
- The structure includes a half-molecule asymmetric unit, completed by inversion symmetry, with an inversion center at the midpoint of a bridging oxalate dianion (CO).
- The crystallization includes disorder, featuring two rotating phenyl rings around their Sn-C bonds and the DMSO molecule occupying two positions due to tetrahedral inversion at the sulfur atom, with all disordered components refined to a fixed occupancy of 0.5.
Article Abstract
In the previously reported [CO(SnPh)] complex [Diop (2003 ▸). , 881-882.], the Sn atoms are able to formally complete their coordination by addition of dimethyl sulfoxide (DMSO) mol-ecules provided by the reaction medium, affording the title complex, [Sn(CH)(CO)(CHOS)]. The Sn atoms are then penta-coordinated, with a common trigonal-bipyramidal arrangement. The asymmetric unit contains one half-mol-ecule, which is completed by inversion symmetry in space group type 2/. The inversion centre is placed at the mid-point of the central bis-monodentate oxalate dianion, CO, which bridges the [(SnPh)(DMSO)] moieties. The mol-ecule crystallizes as a disordered system, with two phenyl rings disordered by rotation about their Sn-C bonds, while the DMSO mol-ecule is split over two positions due to a tetra-hedral inversion at the S atom. All disordered parts were refined with occupancies fixed of 0.5.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5499284 | PMC |
| http://dx.doi.org/10.1107/S2056989017008519 | DOI Listing |
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