新型氨基酸-钨砷多金属氧酸盐K6[Cu(Ala)2*(H2O)2]2[Cu4(H2O)2(AsW9O34)2]*16H2O的合成与晶体结构 |
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作者姓名: | 王永慧 胡长文 王恩波 胡宁海 贾恒庆 邢彦 |
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作者单位: | 1. 东北师范大学化学学院多酸化学研究所, 2. 中国科学院长春应用化学研究所, |
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基金项目: | 国家自然科学基金,教育部高校骨干教师资助计划 |
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摘 要: | The novel amino-acid-containing polyoxometalate K6[Cu(Ala)2(H2O)2]2[Cu4(H2O)25(AsW9O34)2]*16H2O was synthesized from the rea ction of K10[Cu4(H2O)2(AsW9O34)2]*20H2O with β-alanine. Its structure has been determined by single crystal X-ray diffraction. It crystallizes in the triclinic space group P1, with a=1.196 3(2) nm, b=1.536 5(3) nm, c=1.591 4(3) nm, α=93.97(3)°, β=110.88(3)°, γ=101.07(3)°, V=2.651 8(9) nm3 and Z=1. Least-squares refinement of the structure leads to R and Rw factors of 0.067 3 and 0.162 8, respectively. An unusual structural feature of the compound is that the polyanion [Cu4(H2O)2(AsW9O34)2]10- is linked with the amino-acid complex of Cu2+ by a μ-oxygen atom.
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关 键 词: | 氨基酸 钨砷多金属氧酸盐 合成 晶体结构 |
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