A novel cyano-bridged heteronuclear complex exhibiting C–H···Ni close interaction: [Cd(C₄H₇N)₂Ni(μ-CN)₄]_n

详细信息    查看全文

• 作者：Gü ; neş ; Sü ; heyla Kü ; rkç ; ü ; oğ ; lu^a ; ^{gkurkcuo@ogu.edu.tr"" rel=""nofollow} ; Okan Zafer Yeş ; ilel^b ; İ ; lkay Ç ; ayl&#x131 ; ^c ; Orhan Bü ; yü ; kgü ; ngö ; r^d
• 关键词：Cyano-bridged complex ; Tetracyanonickelate(II) complex ; C– ; H· ; · ; · ; Ni interaction ; FT-IR and Raman spectra ; Crystal structure analysis ; 3-Pyrroline ; 2 ; 5-dihydropyrrole
• 刊名：Journal of Molecular Structure
• 出版年：2011
• 出版时间：17 May 2011
• 年：2011
• 卷：994
• 期：1-3
• 页码：39-43
• 全文大小：634 K

文摘

The cyano-bridged heteronuclear polymeric complex, [Cd(pyr)₂Ni(μ-CN)₄]_n, 1 (pyr = 3-pyrroline or 2,5-dihydropyrrole), has been synthesized and characterized by FT-IR, Raman spectroscopy, thermal and elemental analyses. The crystal structure of 1 has been determined by X-ray single crystal diffraction. The complex crystallizes in orthorhombic system and space group Pmna. In 1, Ni(II) ion is coordinated by four cyano ligands, and the Cd(II) ion is coordinated by four bridging cyanide ligands and two trans pyr ligands. The coordination environment of the Cd(II) ion described as distorted octahedral geometry, whereas around the Ni(II) centre has square planar geometry. The crystallographic analysis reveals that the weak intermolecular C–H···Ni interaction was found to be hydrogen bonding interaction, resulting in a 3D framework. Vibration assignments were given for all the observed bands and the spectral feature also supported to the structure of polymeric complex. The decomposition reaction take places in the temperature range 30–700 °C in the static air atmosphere.