Investigation of nitro-nitrito photoisomerization: crystal structure of trans -chlorido-nitro-(1,4,8,11-tetra-aza-cyclo-tetra-decane-κ 4 N , N ', N '', N ''')cobalt(III) chloride

The reaction cavity of the nitro group in the crystal of the title compound, [CoCl(NO )(C H N )]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 crystallograph...

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Published inActa crystallographica. Section E, Crystallographic communications Vol. 74; no. Pt 12; pp. 1908 - 1912
Main Authors Ohba, Shigeru, Tsuchimoto, Masanobu, Yamada, Naoki
Format Journal Article
LanguageEnglish
Published England International Union of Crystallography 01.12.2018
Subjects
Research Communications
crystal structure
reaction cavity
nitro-nitrito photo-isomerization
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Summary:The reaction cavity of the nitro group in the crystal of the title compound, [CoCl(NO )(C H N )]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/ symmetry and the nitro and chloro ligands at the positions are statistically disordered. The complete cyclam ligand is generated by symmetry from a quarter of the mol-ecule. 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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ISSN:2056-9890
2056-9890
DOI:10.1107/S205698901801678X