Investigation of nitro–nitrito photoisomerization: crystal structure of trans-chlorido­nitro­(1,4,8,11-tetra­aza­cyclo­tetra­decane-κ4N,N′,N′′,N′′′)cobalt(III) chloride

Ohba, S.; Tsuchimoto, M.; Yamada, N.

doi:10.1107/S205698901801678X

Figure 4
The steric circumstances of the nitro group in (I)

. Only parts of the complex are shown for clarity. The nitro group may be replaced with the Cl ligand due to the orientational disorder. There is a crystallographic twofold axis running vertical through the Co1^xii and Co1^xv atoms, another C8/C9 equivalent moiety which lies below the planes of the nitro groups being omitted for clarity. The N/C—H⋯O hydrogen bonds are shown as blue dashed lines. The other O⋯H contacts shorter than 2.9 Å (O4⋯H7B^x = 2.78 Å and O4⋯H8B^iv = 2.85 Å) are indicated as green dashed lines, and those of rather long distances (O4⋯H9B^iv = 3.11 Å and O4^vi⋯H9A^iv = 3.09 Å) are indicated as orange dashed lines. Symmetry codes: (i) −x + 1, −y, −z + 1; (ii) x, y, −z + 1; (iii) −x + 1, −y, z; (iv) −x, −y, z; (v) −x, −y, −z + 1; (vi) −x, −y − 1, z; (vii) −x, −y − 1, −z + 1; (viii) x − 1, y − 1, z; (ix) x − 1, y − 1, −z + 1; (x) y, −x, −z + $[{3\over 2}]$ ; (xi) −y, x − 1, −z + $[{3\over 2}]$ ; (xii) −y, x − 1, z + $[{1\over 2}]$ ; (xiii) y, −x, z − $[{1\over 2}]$ ; (xiv) −y, x − 1, z − $[{1\over 2}]$ .

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ISSN: 2056-9890

Volume 74| Part 12| December 2018| Pages 1908-1912

https://doi.org/10.1107/S205698901801678X

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