Investigation of nitro-nitrito photoisomerization: Crystal structure of trans-chloridonitro(1,4,8,11-tetraazacyclotetradecane-κ4 N,N′,N′′,N′′′)cobalt(III) chloride
2018
The reaction cavity of the nitro group in the crystal of the title compound, [CoCl(NO2)(C10H24N4)]Cl, (I), was investigated to confirm that it offers sufficient free space for linkage isomerization to occur in accordance with the observed photochemical reactivity. The complex cation has crystallographic 2/m symmetry and the nitro and chloro ligands at the trans positions are statistically disordered. The complete cyclam ligand is generated by symmetry from a quarter of the molecule. In the crystal of (I), the complex cations and Cl− ions are linked into a three-dimensional network by N—H⋯Cl(counter-ion) hydrogen bonds.
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