Elektronische effekte in cyclopentadienyl-chrom-komplexen,die mehrere akzeptorliganden enthalten |
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Authors: | Max Herberhold Paul D Smith Helmut G Alt |
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Institution: | Laboratorium für Anorganische Chemie, Universität Bayreuth, Postfach 3008, D-8580 Bayreuth B.R.D. |
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Abstract: | The coordinative properties of the acceptor ligand CS are discussed on the basis of the new thiocarbonyl complexes CpCr(CO)(CS)(NO) (I), CpCr(CS)(NO)2]PF6 (II), CpCr(CS)(L)(NO) (L = pyridine (III) or trimethylphosphane (IV) and related carbonyl complexes. The IR and NMR spectra (1H, 13C, 31P) of the complexes indicate ligand—ligand interactions between CS and both the nitrosyl group and the cyclopentadienyl ring. An attempt is made to compare CS with other sulphur-containing acceptor ligands such as NS (in CpCr(CO)2(NS)) and CS2 (in CpCr(CS2)(PMe3)(NO)). |
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