Thermal decomposition behavior of heteronuclear complexes, Ln[Co(CN)6].nH2O (Ln=La-Yb)
Thermal decomposition behavior of heteronuclear complexes, Ln[Co(CN)6].nH2O (Ln=La-Yb)
复制标题
异核配合物Ln[Co(CN)6].nH2O (Ln=La-Yb)的热分解行为
DOI：
10.2109/jcersj.103.519
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发表时间：
1995
影响因子：
1.1
通讯作者：
M. Sakamoto
中科院分区：
文献类型：
--
作者：
Y. Sadaoka;Kazuaki Watanabe;Y. Sakai;M. Sakamoto
研究了Ln-Co(1：1)氰基配合物的热分解行为和分解产物的组成。它们的CN桥联结构在300℃左右的空气中加热分解，生成含有碳酸盐络合物的无定形相。对于La-ND络合物，在620℃左右从非晶相中加热生成亚微米级钙钛矿型氧化物(不含单相氧化物Co3O4和Ln2O3)；随着分解温度的升高，钙钛矿型氧化物的含量增加。对于含Ho和Yb的配合物，即使在1100℃下分解，也不能得到相应的钙钛矿型氧化物。
The thermal decomposition behavior of Ln-Co (1:1) cyano complexes and the composition of decomposition products have been examined. Decomposition of their CN-bridged structures proceeded on heating at about 300°C in air, generating amorphous phases containing carbonate complexes. For the complexes comprising La-Nd, submicron sized particles of perovskite-type oxide were formed (without single phase oxides Co3O4 and Ln2O3) from an amorphous phase by heating at about 620°C. For the complexes comprising Eu, Gd and Dy, a mixture of single oxides (Co3O4 and Ln2O3) and perovskite-type oxide was formed. The content of the perovskite-type oxide increased with the increase in decomposition temperature. For the complexes containing Ho and Yb the corresponding perovskite-type oxide could not be obtained even when the complex was decomposed at 1100°C.