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一个含苯甲酸配体的Mn-Ce混合金属簇合物的合成、晶体结构与磁性研究

王会生 ,  潘志权

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引用本文: 王会生, 潘志权. 一个含苯甲酸配体的Mn-Ce混合金属簇合物的合成、晶体结构与磁性研究[J]. 无机化学学报, 2013, 29(7): 1459-1464. doi: 10.3969/j.issn.1001-4861.2013.00.255 shu
Citation:  WANG Hui-Sheng, PAN Zhi-Quan. Synthesis, Crystal Structure, and Magnetic Properties of a Mn-Ce Mixed-Metal Complex Containing Benzoic Ligands[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(7): 1459-1464. doi: 10.3969/j.issn.1001-4861.2013.00.255 shu

一个含苯甲酸配体的Mn-Ce混合金属簇合物的合成、晶体结构与磁性研究

  • 基金项目:

    国家自然科学基金(No.21201136) (No.21201136)

    武汉工程大学科学研究基金(No.10122012)资助项目。 (No.10122012)

摘要: 本文使用(NH4)2Ce(NO3)6氧化Mn2+法合成了1个结构新颖的Mn-Ce混合金属簇合物[Mn3Ce2(O)5(O2CPh)9(CH3OH)3]·2CH3CN(1·2CH3CN,HO2CPh代表苯甲酸),并对其进行元素分析、红外光谱、单晶X-射线结构分析、磁性等表征。结构分析表明,化合物1·2CH3CN属于三斜晶系P1空间群,结构中2个Mn4+离子、2个Ce4+离子和4个桥连μ3-O原子组成1个不规则的立方烷,然后通过另1个桥连μ3-O原子与另1个Mn3+离子相连。晶胞内分子间没有氢键作用,但存在较强的π-π堆积作用。磁性研究表明,簇合物内Mn离子之间存在铁磁性耦合作用,基态自旋值S=5和磁各向异性参数D=-0.31 cm-1,交流磁化率没有频率依赖现象。

English

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  • 收稿日期:  2012-12-01
  • 网络出版日期:  2013-05-09
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