Transition metal disubstituted ternary heteropolyoxometallates: Synthesis, characterization, crystal structure and magnetic properties

被引:12
作者
Niu, JY
Wang, JP
You, XZ
Mak, TCW
Zhou, ZY
机构
[1] NANJING UNIV,CTR ADV STUDIES & TECHNOL MICRSTRUCT,STATE KEY LAB COORDINAT CHEM,NANJING 210093,PEOPLES R CHINA
[2] CHINESE UNIV HONG KONG,DEPT CHEM,HONG KONG,NEW TERR,HONG KONG
基金
中国国家自然科学基金;
关键词
transition metal; heteropolyoxometallate; Keggin structure; crystal structure disubstituted; ternary;
D O I
10.1016/0277-5387(96)00142-8
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A series of transition metal disubstituted ternary heteropolyoxometallates, [TBA]H-4(3)[PW(3)Mo(7)M(2)O(38)(H2O)(2)]. 2H(2)O (M = Co2+, Ni2+ and Cu2+) [TBA]H-4[PW(3)Mo(7)M(2)O(38)(H2O)(2)]. 2H(2)O (M = Cr3+, Fe3+) and [TBA]H-4(2)[PW3Mo6V3O40]. 2H(2)O, have been synthesized by reaction of Na9PW3Mo6O34. 10H(2)O and the corresponding results of the transition metal in water, and recrystallized in a mixed acetone/water solvent. They were characterized by elemental analyses, IR spectra and electronic spectra. The crystal structure of [TBA]H-4(3)[PW3Mo7Cu2O38(H2O)(2)]. 2H(2)O has been determined, The magnetic susceptibility data indicate that [TBA]H-4[PW3Mo7Fe2O38 (H2O)(2)]. 2H(2)O has weak ferromagnetic properties. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:3963 / 3969
页数:7
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