The title compound, [Ni(1,3-pn)3](NO3)2, crystallizes in the orthorhombic space group Pbca with eight formula units in a cell of dimensions a = 17.146(8), b = 14.364(5) and c = 15.054(7). The structure was solved by the heavy-atom method and refined by least-squares calculations to R = 0.053 for 1439 counter data. It consists of discrete, slightly distorted octahedral [Ni(1,3-pn)3]2+ cations and NO3− anions. One of the three six-membered chelate rings show a pronounced flattening unusual chair conformation. Magnetic and spectroscopic data agree to a lower stability of six-membered chelate rings, compared to five-membered chelate ones.
Crystal and molecular structure of tris(propane-1,3-diamine)nickel(II) dinitrate complexes / Vezzosi, Ida Maria; Benedetti, Adriano; Saladini, Monica; L. P., Battaglia; Corradi, Anna. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - STAMPA. - 97:(1985), pp. 195-199. [10.1016/S0020-1693(00)86584-6]
Crystal and molecular structure of tris(propane-1,3-diamine)nickel(II) dinitrate complexes
VEZZOSI, Ida Maria;BENEDETTI, Adriano;SALADINI, Monica;CORRADI, Anna
1985
Abstract
The title compound, [Ni(1,3-pn)3](NO3)2, crystallizes in the orthorhombic space group Pbca with eight formula units in a cell of dimensions a = 17.146(8), b = 14.364(5) and c = 15.054(7). The structure was solved by the heavy-atom method and refined by least-squares calculations to R = 0.053 for 1439 counter data. It consists of discrete, slightly distorted octahedral [Ni(1,3-pn)3]2+ cations and NO3− anions. One of the three six-membered chelate rings show a pronounced flattening unusual chair conformation. Magnetic and spectroscopic data agree to a lower stability of six-membered chelate rings, compared to five-membered chelate ones.
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