Five-co-ordination in nickel(II) complexes. The crystal structure of dibromo-[1-(o-methoxyphenyl)-2,6-diazaoctane]nickel(II)
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2078-2083
- https://doi.org/10.1039/j19680002078
Abstract
The structure of dibromo-[1-(o-methoxyphenyl)-2,6-diazaoctane]nickel(II) has been determined by X-ray analysis. The unit-cell dimensions are: a= 11·130 ± 0·007, b= 9·835 ± 0·012, c= 16·573 ± 0·017 Å, β= 113° 32′± 3′, space group P21/c. The structure has been solved by the heavy-atom technique and refined to a final R factor of 0·083 using 1253 independent observed reflections. The nickel atom is five-coordinate, the co-ordination polyhedron being intermediate between the trigonal bipyramid and the square pyramid. Bond lengths about the metal atom are: Ni–Br(1)= 2·416(4), Ni–Br(2)= 2·398(4), Ni–O = 2·32(1), Ni–N(1)= 2·02(1), and Ni–N(2)= 2·01(1)Å.Keywords
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