Etude structurale et vibrationnelle d'un nouveau composé complexe de cobalt: [Co(imidazole)4Cl]Cl

Acta Crystallographica Section E: Crystallographic Communications

Graia, M.⁴  Derbel, A.⁶  Mhiri, T.⁸ 

[1] de Sfax, BP W 3038 Sfax, Tunisie;de Tunis El Manar, 2092 El Manar Tunis, Tunisie;des Sciences de Tunis, Universitédes Sciences, UniversitéLaboratoire de MatéLaboratoire de l'ériaux et Cristallochimie, Facultétat solide, Faculté

关键词: CRYSTAL STRUCTURE;    COBALT COMPLEX;    IMIDAZOLE;    HYDROGEN BONDING;    FRAMEWORK;   

DOI  :  10.1107/S2056989015015807

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title complex, chlorido­tetra­kis­(1H-imidazole-κN3)cobalt(II) chloride, [CoCl(C3H4N2)4]Cl, the CoII cation has a distorted square-pyramidal coordination environment. It is coordinated by four N atoms of four imidazole (Im) groups in the basal plane, and by a Cl atom in the apical position. It is isostructural with [Cu(Im)4Cl]Cl [Morzyk-Ociepa et al. (2012). J. Mol. Struct. 1028, 49–56] and [Cu(Im)4Br]Br [Hossaini Sadr et al. (2004). Acta Cryst. E60, m1324–m1326]. In the crystal, the [CoCl(C3H4N2)4]+ cations and Cl− anions are linked via N—H⋯Cl hydrogen bonds, forming layers parallel to (010). These layers are linked via C—H⋯Cl hydrogen bonds and C—H⋯π and π–π [inter-centroid distance = 3.794 (2) Å] inter­actions, forming a three-dimensional framework. The IR spectrum shows vibrational bands typical for imidazol groups. The monoclinic unit cell of the title compound emulates an ortho­rhom­bic cell as its β angle is close to 90°. The crystal is twinned, with the refined ratio of twin components being 0.569 (1):0.431 (1).

【 授权许可】

CC BY