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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： 郭光华 郭国聪 周国伟 王明盛 蔡丽珍 吴阿清 黄锦顺 作者单位： 郭光华(结构化学国家重点实验室,中国科学院福建物质结构研究所,福州,350002;中国科学院研究生院,北京,100039)郭国聪,周国伟,王明盛,蔡丽珍,吴阿清,黄锦顺(结构化学国家重点实验室,中国科学院福建物质结构研究所,福州,350002)
刊 名： 无机化学学报 ISTIC SCI PKU 英文刊名： CHINESE JOURNAL OF INORGANIC CHEMISTRY 年，卷(期)： 2003 19(1) 分类号： O614.121 关键词： 2-吡啶羧酸 过渡金属 4+2拉长八面体 氢键 晶体结构 picolinic acid transition metal 4 + 2 elongated octahedral hydrogen bondcrystal structure