Title: Effect of substitution on packing in trans-di(Z-chlorobenzoato-O)-di(1,3-diaminopropane-N,N′)nickel(II) (Z = 2, 3 or 4) complexes
Abstract: The structures of trans-di(Z-chlorobenzoato-O)bis((1,3-diaminopropane-N,N′)nickel(II) (where Z = 2, 3 or 4) were determined by single-crystal X-ray methods. In each compound the chelate rings display a chair conformation and there is trans coordination around the central metal cation. The coordination polyhedron around the central nickel(II) cation is distorted pseudo-octahedron with the site symmetry of Cr Although the bond lengths and angles in the compounds are similar, there are differences in the packing modes. The hydrogen bonding networks combine the complex units in two dimensions. However, there is notable variation in the third dimension, where the position of a chlorine substituent in an aromatic ring determined the packing mode of the benzoate anions. The crystal data are as follows, [Nitn2(2ClbzO)2] C20H28Cl2 N4NiO4, Mr = 518.08, orthorhombic, space group Pbca No. 61, a = 10.219(3), b = 10.247(2), c = 22.336(7) Å, Z = 4. [Ni(tn)2(3ClbzO)2], C20H28Cl2N4NiO4, Mt = 518.08, monoclinic, space group P21/a No. 14, a = 11.555(2), b = 8.162(2), c = 12.650(2) Å, β = 106.17(2)°, Z = 2. [Ni(tn)2(4ClbzO)2], C20H28Cl2N4NiO4, Mt = 518.08, monoclinic, space group P21/c No. 14, a = 10.538(3), b = 9.099(2), c = 12.801(3) Å, β = 92.83(2)°, Z = 2; tn = 1.3-diaminopropane, bzO = a benzoate anion.
Publication Year: 1998
Publication Date: 1998-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 9
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