[COH(NH2)2]2[Cu(pic)2(ClO4)2]的合成與晶體結構

The title compound was synthesized by reaction of Cu(ClO4)2, picolinic acid and carbamide in C2H5OH/CH3CN solution, and characterized by single-crystal X-ray diffraction. It crystallizes in the orthorhombic system,space group Pbcawith a=14.0481(8), b=9.0130(5), c=18.626(1) A, V=2358.3(2) A3, Z=4, Dx=1. 771g @ cm-3, μ= 1. 235mm-1 and F(000) = 1276. The final R factor is 0. 0440 for 1434 observed reflections.The X-ray analysis revealed that the copper (Ⅱ) atom is coordinated by two picolinic ligands in the equatorial plane,while the two oxygen atoms of perchlorate occupy the axial positions of octahedron with lengthened Cu-O distances,resulting in a 4 + 2 elongated octahedral environment. In the compound, there also exist two protonated carbamidecations for charge balance. CCDC: 195354.

作 者： 郭光華 郭國聰 周國偉 王明盛 蔡麗珍 吳阿清 黃錦順   作者單位： 郭光華(結構化學國家重點實驗室,中國科學院福建物質結構研究所,福州,350002;中國科學院研究生院,北京,100039)

郭國聰,周國偉,王明盛,蔡麗珍,吳阿清,黃錦順(結構化學國家重點實驗室,中國科學院福建物質結構研究所,福州,350002) 

刊 名： 無機化學學報  ISTIC SCI PKU 英文刊名： CHINESE JOURNAL OF INORGANIC CHEMISTRY  年，卷(期)： 2003 19(1)  分類號： O614.121  關鍵詞： 2-吡啶羧酸   過渡金屬   4+2拉長八面體   氫鍵   晶體結構   picolinic acid transition metal 4 + 2 elongated octahedral hydrogen bondcrystal structure  

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