Investigation of nitro-nitrito photoisomerization: Crystal structures of trans-{2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}(pyridine/4-methylpyridine)nitrocobalt(III)

Shigeru Ohba, Masanobu Tsuchimoto, Naoki Yamada

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The reaction cavities of the nitro groups in the title compounds, trans-{2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato-κ4 O,N,N′,O′}(nitro-κN)(pyridine-κN)cobalt(III), [Co(C16H14N2O2)(NO2)(C5H5N)], (I), and trans-{2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato-κ4 O,N,N′,O′}(4-methylpyridine-κN)(nitro-κN)cobalt(III), [Co(C16H14N2O2)(NO2)(C6H7N)], (II), have been investigated to reveal that the intermolecular CMe - H⋯O(nitro) contacts in (II) are unfeasible for the nitro-nitrito photochemical linkage isomerization process. In (I), there are two independent complexes showing similar conformations, and the central five-membered chelate ring of the tetradentate salen ligand adopts the same absolute configuration. This is the result of pseudo-spontaneous resolution, since the configuration of the five-membered chelate ring may frequently be reversed in solution. In the crystals of (I) and (II), the molecules are linked into three-dimensional networks by C - H⋯O hydrogen bonds.

本文言語English
ページ(範囲)1759-1763
ページ数5
ジャーナルActa Crystallographica Section E: Crystallographic Communications
74
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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