Synthesis and crystal structure of a new Ni(II) complex of 1,5-bis ( <i>N-</i><span style="font-size:14.0pt;font-family:Arial;mso-bidi-font-style:italic">1<i>-</i>methyl-imidazol-2-methyl)-1,5-diazacyclooctane <span style="font-size:14.0pt;font-family:HiddenHorzOCR;mso-bidi-font-family:HiddenHorzOCR">(L), [NiLCl]⁺ </span></span>

Abstract

<span style="font-size:14.0pt;font-family:" times="" new="" roman";="" mso-fareast-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="">A new five-coordinated complex [NiLCl]ClO₄, where L <span style="font-size:14.0pt;font-family:Arial;mso-fareast-font-family: " times="" new="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:ar-sa"="">= <span style="font-size:14.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">1.5-bis(<i style="mso-bidi-font-style:normal">N</i>-1-methylimidazol-2-methyl)-1,5-diazacyclooctane, has been synthesized and characterized by elemental analysis, IR and UV-vis spectra. The structure of the complex has been determined by single crystal X-ray diffraction (CCDC 116095). The Ni (II) atom is coordinated by four nitrogen donors of the new mesocyclic ligand L [Ni-N, 2.025(4)~2.130(4) Å], and a chloro anion from the apical site [Ni-Cl, 2.340(2) Å . The coordination geometry of the complex could be considered as a distorted square-pyramidal. The diazacyclooctane backbone has a boat/chair configuration and the two imidazole pendants are not co-planar.</span></span></span>