Synthesis of tetraphenylstibonium alkyl- and aryl- sulphonates. Crystal structure of tetraphenylstibonium benzenesulphonate hydrate
1985; Elsevier BV; Volume: 295; Issue: 1 Linguagem: Inglês
10.1016/0022-328x(85)88068-2
ISSN1872-8561
AutoresR. Rüther, Friedo Huber, Hans Preut,
Tópico(s)Organometallic Compounds Synthesis and Characterization
ResumoThe tetraphenylstibonium sulphonates Ph4SbO3SR·nH2O (n = 1, R = C6H5; n = 0, R = CH3, CF3, CH2CH2OH, 4-CH3C6H4, 2,4(NO2)2C6H3) have been obtained by neutralization of tetraphenylstibonium hydroxide with the appropriate alkyl- or aryl-sulphonic acid. The crystal structure of tetraphenylstibonium benzenesulfonate hydrate has been determined by single crystal X-ray diffraction. The sulphonate group is unidentately coordinated to antimony, which has a distorted trigonal bipyramidal environment. The rather long SbO bond, (2.506(4) Å) and the distortion of the polyhedron around Sb, and the IR data for the sulphonate group are consistent with the assumption of a large ionic bond character in the SbO bond. From IR data analogous molecular structures are inferred for the other tetraphenylstibonium sulphonates.
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