Tin(iv) halide complexes of AsPh3: The structures of trans-SnCl4(AsPh3)2and SnBr4(AsPh3)·AsPh3
Mahon, Mary F.; Moldovan, Natalia L.; Molloy, Kieran C.; Muresan, Alexandra; Silaghi-Dumitrescu, Ioan; Silaghi-Dumitrescu, Luminita; Mahon Mary F.; Department of Chemistry, University of Bath; Moldovan Natalia L.; Department of Chemistry, Babes-Bolyai University; Molloy Kieran C.; Department of Chemistry, University of Bath; Muresan Alexandra; Department of Chemistry, Babes-Bolyai University; Silaghi-Dumitrescu Ioan; Department of Chemistry, Babes-Bolyai University; Silaghi-Dumitrescu Luminita; Department of Chemistry, Babes-Bolyai University
Журнал:
Dalton Transactions
Дата:
2004
Аннотация:
The structures of two 1 â ¶ 2 adducts between tin(iv) halides and AsPh3 have been determined. SnCl4(AsPh3)2 adopts a six-coordinate geometry at tin in which the two organoarsine donors are mutually trans. In contrast, SnBr4(AsPh3)2 is five-coordinate at tin and only one arsine is directly bonded to the metal, in an axial site of the trigonal bipyramid. The second AsPh3 group has a close contact with the axially bound bromine [Asâ ¯Br: 3.567(3) Ã ], which is a unique structural variation that depicts an intermediate in a halogen-transfer reaction between Group 14 and Group 15 elements. AACVD using SnCl4(AsPh3)2 generates a film containing SnO2 and a second crystalline material which is possibly SnCl2, but which contains no arsenic.
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