Tris[tri-phenyl-anti-mony(V)]hexa(μ-oxido)-tellurium(VI): a mol-ecular complex with six Te-O-Sb bridges.

Autor: Domasevitch KV; Inorganic Chemistry Department, National Taras Shevchenko University of Kyiv, Volodymyrska Str. 64/13, 01601 Kyiv, Ukraine., Senchyk GA; Inorganic Chemistry Department, National Taras Shevchenko University of Kyiv, Volodymyrska Str. 64/13, 01601 Kyiv, Ukraine.
Jazyk: angličtina
Zdroj: Acta crystallographica. Section E, Crystallographic communications [Acta Crystallogr E Crystallogr Commun] 2021 Nov 04; Vol. 77 (Pt 12), pp. 1229-1233. Date of Electronic Publication: 2021 Nov 04 (Print Publication: 2021).
DOI: 10.1107/S2056989021011294
Abstrakt: In the structure of the title compound [systematic name hexa-μ-oxido-1:2κ 4 O : O ;1:3κ 4 O : O ;1:4κ 4 O : O -nona-phenyl-2κ 3 C ,3κ 3 C ,4κ 3 C -tri-anti-mony(V)tel-lur-ium(VI)], [Sb 3 Te(C 6 H 5 ) 9 O 6 ], the hexa-oxidotellurate(VI) ion is coordinated to three Sb V ions via pairs of cis -positioned O atoms to form a discrete mol-ecular unit. The Te VI and Sb V central ions exhibit distorted octa-hedral [TeO 6 ] and distorted trigonal-bipyramidal [SbC 3 O 2 ] coordination geometries, respectively. The linking of these polyhedra, by sharing the dioxide edges, results in the Te-based octa-hedron having a mer -configuration. The packing of the mol-ecules is dominated by C-H⋯O hydrogen bonding and weak dispersion forces, with a minor contribution from C-H⋯π bonds and π-π stacking inter-actions. According to the Hirshfeld surface analysis, the contributions of the H⋯H, H⋯C/C⋯H and H⋯O/O⋯H contacts are 58.0, 32.6 and 7.8%, respectively. The title structure provides a model for the bonding of triorgano-anti-mony dications to octa-hedral oxoanions, and the observed doubly bridged motifs, Te(μ-O) 2 Sb, may find application in the functionalization of polyoxometalate species.
(© Domasevitch and Senchyk 2021.)
Databáze: MEDLINE
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