期刊
DALTON TRANSACTIONS
卷 39, 期 10, 页码 2497-2503出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b920987e
关键词
-
资金
- Natural Science Foundation of China [B5080320]
- Guangdong Natural Science Foundation of China [B6060400]
- South China University of Technology [Y1090160]
Three isostructural heterobimetallic nitrilotriacetatoperoxotitanate complexes of general formula [M(H2O)(5)](2)[Ti-2(O-2)(2)O(nta)(2)]center dot 7H(2)O [M=Co(1), Ni ( 2) and Zn ( 3)] have been isolated in pure crystals directly from the quaternary system of M2+-Ti(OC4H9)(4)-H2O2-H(3)nta (H(3)nta = nitrilotriacetic acid) at pH = 4.0 and have been characterized by elemental analyses, IR, thermal analysis (TGA), and single-crystal X-ray diffraction. Single crystal X-ray analysis reveals that the titanium atom in these complexes features seven-fold-coordination, each surrounded by six oxygen atoms and one nitrogen atom. The divalent transition metal ions in these compounds are hexa coordinated, surrounded by five water molecules and one bridged carboxylato oxygen atom. The TGA and XRD results prove that complexes 1-3 undergo facile thermal decomposition to form pure CoTiO3, NiTiO3 and ZnTiO3 at 700 degrees C respectively. The morphologies, microstructures, and crystallinity of the residues obtained after pyrolysis were characterized by transmission electron microscopy and powder X-ray diffraction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据