结构化学
結構化學
결구화학
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
2005年
2期
226-230
,共5页
杜文新%张建军%胡胜民%夏盛清%项生昌%吴新涛
杜文新%張建軍%鬍勝民%夏盛清%項生昌%吳新濤
두문신%장건군%호성민%하성청%항생창%오신도
copper%lanthanide%heptanuclear trigonal prism%amino acid%cluster compound
A new heptanuclear trigonal prismatic cluster [PrCu6(μ3-OH)3(Gly)6im6](C1O4)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) (A), V = 5128.4(1) (A)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.
