高等学校化学学报

高等学校化学学报

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具有SOD分子筛拓扑结构的稀土金属-氧-硝酸骨架材料的合成

王立锋1, 李华1,2, 朱广山1, 任浩1, 孙福兴1, 裘式纶1   

    1. 吉林大学无机合成与制备化学国家重点实验室, 长春130012;
    2. 中央民族大学生命与环境科学学院化学系, 北京 100081
  • 收稿日期:2008-03-11 修回日期:1900-01-01 出版日期:2008-11-10 发布日期:2008-11-10
  • 通讯作者: 裘式纶

Synthesis of Novel 3D Lanthanide Oxide Nitrate Compounds with the Zeolite SOD Topology

WANG Li-Feng1, LI Hua1,2, ZHU Guang-Shan1, REN Hao1, SUN Fu-Xing1, QIU Shi-Lun1*   

    1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012;
    2. Department of Chemistry, College of Life and Environmental Sciences, Central University for Nationalities, Beijing 100081, China
  • Received:2008-03-11 Revised:1900-01-01 Online:2008-11-10 Published:2008-11-10
  • Contact: QIU Shi-Lun

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被引次数

5

摘要： 在水热条件下合成得到一系列具有SOD分子筛拓扑结构的稀土氧化物硝酸盐. 这些化合物的晶体结构都属于三方R-3空间群. 该种骨架结构使得SOD分子筛笼0.9 nm的直径被拓展至该结构中的近1.4 nm. 每个金属中心与8个氧原子配位, 其中6个为桥连氧原子, 2个氧原子来自配位的硝酸根. 如果忽略硝酸根, 可以把这个化合物看作是一个稀土氧化物的三维开放骨架结构, 这在稀土氧化物的结构中是非常少见的.

关键词: 稀土金属, 氧化物硝酸盐, 纳米笼, 分子筛拓扑

Abstract: A series of lanthanide oxide nitrates(Ln=Y, Tm, Yb, Lu) constructed by nanoscale cages with a zeolite sodalite topology structure were prepared through the hydrothermal method. The compounds are isomorphous and crystallize in the trigonal R-3 space group. The framework expands the original structure of SOD nanocage from 0.9 nm to 1.4 nm. The lanthanide ions are eight-coordinate with six bridge oxygen atoms and two oxygen atoms coming from nitrate ions. If the nitrate ions were ignored, the compound can be described as a rare lanthanide oxide structure with 3-dimensional open framework.

Key words: Lanthanide, Oxide nitrate, Nanoscale cage, Zeolite topology

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