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Citation: LIU Jie, PAN Guo-Hua, MEI Wen-Jie, LIU Jian-Zhong, JI Liang-Nian, WANG En-Bo. Synthesis, Crystal Structure and Bioactivity of Heteropolyoxotungstates Substituted by Niobium[J]. Chinese Journal of Applied Chemistry, ;2001, 18(3): 220-224. shu

Synthesis, Crystal Structure and Bioactivity of Heteropolyoxotungstates Substituted by Niobium

1.
a State Key Laboratory of Ultrafast Laser Spectroscopy, Department of Chemistry, Zhongshan University, Guangzhou 510275;
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b Test Branch of No.1 Oil Production Company in Daqing, Daqing;
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c Department of Chemistry, Northeast Normal University, Changchun

Received Date: 8 June 2000
Available Online: 14 September 2000

The new complexes M_7-mH_m[XW₉Nb₃O₄₀]·nH₂O and M₇[XW₉(NbO₂)₃O₃₇]·nH₂O(X=Si,Ge;M=K,Me₄N,Bu₄N),were synthesized and characterized by IR,UV and ¹⁸³W NMR spectrometry.Complex K₄H₁₂[Si₂W₁₄Nb₁₀O₇₉]·13H₂O was determined by XRD to be of Keggin structure.Its crystal belongs to monoclinic space group C2,with a=1.9226(4) nm,b=3.3134(7) nm,c=1.2497(3) nm,D_c=3.240 g/cm³,Z=3,_=15.886 mm^-1,F(000)=6920,R=0 0565,WR₂=0.0972.It was found that the complex has an excellent anti-virus activity to tomato mosaic virus.
- substituted hetero polyox otungstate,
- synthesis,
- crystal structure,
- bioactivity
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