Synthesis and Crystal Structure of a Heptanuclear Trigonal Prismatic Cluster {PrCu_6} with Glycine and Imidazole as Ligands  

Synthesis and Crystal Structure of a Heptanuclear Trigonal Prismatic Cluster {PrCu_6} with Glycine and Imidazole as Ligands

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作  者:杜文新 张建军 胡胜民 夏盛清 项生昌 吴新涛 

机构地区:[1]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter,The Chinese Academy of Sciences, Fuzhou,Fujian 350002,China

出  处:《Chinese Journal of Structural Chemistry》2005年第2期226-230,共5页结构化学(英文)

基  金:This research was supported by the State Key Laboratory of Structural Chemistry; the National Science and Technology of China (001CB1089); the Chinese Academy of Sciences (CAS); the National Science Foundation of China (20333070; 20273073;;90206040); and the Science Foundation of CAS and Fujian Province (2002F014;2003J042;2004J041;2004H201-1)

摘  要:A new heptanuclear trigonal prismatic cluster [PrCu6(μ3-OH)3(Gly)6im6](ClO4)6 was synthesized through the self-assembly of Pr3+, Cu2+, glycine and imidazole in aqueous solution and characterized by X-ray structure analysis. The compound belongs to the trigonal R3 space group with a = b = 15.8761(2), c = 23.4943(5) ?, V = 5128.4(1) ?3, Z = 3, Dc = 1.965 g/cm3, μ = 2.869 mm-1, F(000) = 3012, the final R = 0.0332 and wR = 0.0844 for 3596 independent reflections. In the cation, the Pr3+ ion is situated at the center of a prism formed by six copper atoms and coordinates to nine oxygen atoms with a tricapped trigonal prismatic coordination polyhedron. Six glycine ligands and six imidazole terminal ligands participate in constructing the cluster.A new heptanuclear trigonal prismatic cluster [PrCu6(μ3-OH)3(Gly)6im6](ClO4)6 was synthesized through the self-assembly of Pr3+, Cu2+, glycine and imidazole in aqueous solution and characterized by X-ray structure analysis. The compound belongs to the trigonal R3 space group with a = b = 15.8761(2), c = 23.4943(5) ?, V = 5128.4(1) ?3, Z = 3, Dc = 1.965 g/cm3, μ = 2.869 mm-1, F(000) = 3012, the final R = 0.0332 and wR = 0.0844 for 3596 independent reflections. In the cation, the Pr3+ ion is situated at the center of a prism formed by six copper atoms and coordinates to nine oxygen atoms with a tricapped trigonal prismatic coordination polyhedron. Six glycine ligands and six imidazole terminal ligands participate in constructing the cluster.

关 键 词:copper LANTHANIDE heptanuclear trigonal prism amino acid cluster compound 

分 类 号:O626.23[理学—有机化学]

 

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