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Journal of the Chemical Society A: Inorganic, Physical, Theoretical


Journal of the Chemical Society A: Inorganic, Physical, Theoretical was published from 1966 - 1971.

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Paper

J. Chem. Soc. A, 1971, 148 - 152, DOI: 10.1039/J19710000148


Crystal and molecular structure of the five-co-ordinate complex diisothiocyanato-[NN-bis-(2-diethylaminoethyl)-2-diphenylarsinoethyl-amine-NNN]-nickel(II)

M. Di Vaira


The structure of di-isothiocyanato-[NN-bis-(2-diethylaminoethyl)-2-diphenylarsinoethylamine-NNN]-nickel(II) has been determined by standard X-ray diffraction methods from 2171 observations measured by a densitometer. The unit-cell dimensions are: a= 15·550 ± 0·013, b= 14·552 ± 0·016, c= 18·114 ± 0·015 Å, = 127° 39± 4; space group P21/c. The nickel atom is surrounded by a set of five nitrogen atoms, with approximate square-pyramidal geometry. The average of the two Ni–N(NCS) bond distances is 1·95(1)Å. The central Ni–N bond [2·08(1)Å] formed by the ligand molecule is shorter than the other two Ni–N bonds [2·20(2)Å, average]. The arsenic atom of the ligand does not co-ordinate.