The NO2- ion, in the trans-octahedral [NiII(N,N′-dimethylethylenediamine)2 (NO2)2](H2O) complex, coordinates the metal through the nitrogen atom (nitro form). On heating the solid complex, the anion rotates to give nitrito coordination (oxygen bound), according to a reversible process. The coordination mode of NO2- to NiII is related to the steric interplay between the anion and the alkyl substituents on the diamine.
Molecular motions in the solid state: The thermochromic nitro-nitrito interconversion in nickel(II) bis(diamine) complexes
Michele Zema
2003-01-01
Abstract
The NO2- ion, in the trans-octahedral [NiII(N,N′-dimethylethylenediamine)2 (NO2)2](H2O) complex, coordinates the metal through the nitrogen atom (nitro form). On heating the solid complex, the anion rotates to give nitrito coordination (oxygen bound), according to a reversible process. The coordination mode of NO2- to NiII is related to the steric interplay between the anion and the alkyl substituents on the diamine.File in questo prodotto:
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