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Synthesis and Structure of a Novel Tetranuclear Erbium(Ⅲ) Complex with L-Proline(HPro)[Er_4(HPro)_4(Pro)_2·(μ_3-OH)_4(H_2O)_7](ClO_4)_6·6H_2O

查看全文 作　　者：ZHANG Dashun;BU Weiming;YANG Weichun;LI Junran;JIN Tianzhu;YE Ling;FAN Yuguo 高影响力作者 出　　处：《Chemical Research in Chinese Universities》索引2000年第16卷第2期,共5页高影响力期刊 基　　金：Supported by the National Key Project of Fundamental Research and the National Natural Science Foundation ofChina(No.29771001, 摘　　要：The title complex was synthesized in an aqueous solution and its crystal structure was determined by Xray diffraction. The crystal is rhombohedral, space group R3 with a=1.947 0(3) nm, b=1.947 0(3) nm, c=1.768 3(3) nm, α=90°, β=90°, γ=120°, V=5.805(2) nm3, Z=3 , the final R value is 0.051 2. The complex contains a novel tetranuclear cation with four Er 3+ ions connected by four μ 3OH ions and six bridging carboxyl groups. Each erbium ion is coordinated by three μ 3OH, three carboxylic oxygen atoms from three Lproline, and two or one oxygen atoms from water molecules. 关 键 词：ERBIUM COMPLEX L-PROLINE Crystal STRUCTURE TETRANUCLEAR COMPLEX
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