Complexes of alkyl and aryl cyanides. Part V. Tri-(2-cyanoethyl)-phosphine complexes of cobalt(II) and nickel(II) halides: the nature of the co-ordinated ligand molecules

Autor:	R. A. Walton, R. Whyman
Rok vydání:	1968
Předmět:	chemistry.chemical_classification Ligand Aryl chemistry.chemical_element Photochemistry Chloride Inorganic Chemistry chemistry.chemical_compound Nickel chemistry Bromide Polymer chemistry medicine Physical and Theoretical Chemistry Cobalt Alkyl Phosphine medicine.drug
Zdroj:	Journal of the Chemical Society A: Inorganic, Physical, Theoretical. :1394
ISSN:	0022-4944
Popis:	Nicke(II) chloride and bromide react with tri-(2-cyanoethyl)phosphine (CEP) in acetone to form the red squareplanar complexes α-NiX2,2CEP. These complexes transform to the blue paramagnetic β-forms at room temperature and above. Cobalt(II) chloride reacts with CEP to form blue 3CoCl2,2CEP, which contains pseudo-tetrahedral cobalt(II) and has a trimeric cage structure. The complexes 3CoX2,2CEP,Solvent (X = Br or I; and Solvent = acetone or methyl cyanide) are also described. The nature of the co-ordinated CEP molecules is inferred from infrared spectral measurements, and the unusual donor properties of this ligand are discussed.
Databáze:	OpenAIRE
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