Reaction of [ReCl2(OMe)(NO)(PPh3)2] with a range of thiophenols under basic conditions gives one of two classes of products depending on the steric requirements of the thiols. A representative member of each class has been characterised by an X- ray crystal structure determination. Thiophenols with methyl or isopropyl groups in their ortho positions give the mononuclear complexes [Re(SR)4(NO)] (SR = SC6H2Pri3-2,4,6, SC6H3Pri2-2,6, SC6H2Pri2-2,6-4- Br, or SC6H2Me3-2,4,6) which are trigonal bipyramidal with an axial NO group. Thiophenols without ortho-substituents give the dinuclear anions [Re2(SR)7(NO)2]- (SR = SPh or SC6H4Me-4) which contain a triple thiolate bridge between two equivalent rhenium atoms. These anions show a fluxionality involving intramolecular exchange of six thiolato-ligands.
|Original language||English (US)|
|Number of pages||9|
|Journal||Journal of the Chemical Society, Dalton Transactions|
|State||Published - Dec 1 1985|
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