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Two Inorganic-Organic Hybrid Crystals Based on Polyoxometallates and Supramolecular Cation:Syntheses and Crystal Structures
Author NameAffiliationE-mail
XIONG Jun College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China jxiong@wtu.edu.cn 
LÜ Shao-Fang College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China  
PENG Jun-Jun College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China  
LI Ming College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China  
LI Wei College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China  
YANG Shui-Bin College of Chemical Engineering, Huanggang Normal University, Huanggang, Hubei 438000, China 2416975012@qq.com 
Abstract: Two new inorganic-organic hybrids[(3-F-4-MeAnis)(DB[18]crown-6)]2[Mo6O19]·2CH3CN (1) and[(2-F-4-MeAnis)([18]crown-6)]2[SMo12O40]·2CH3CN (2) (3-F-4-MeAnis=3-fluoro-4-methylanilinium, DB[18]crown-6=dibenzo[18]crown-6,2-F-4-MeAnis=2-fluoro-4-methylanilinium) have been synthesized and characterized by infrared spectrum (IR), elemental analysis (EA), thermosgravimetric analysis (TGA) and X-ray diffraction. Compounds 1 and 2 are constructed through noncovalent bonding interaction and the polyoxometalates (POMs) and supramolecular cation arrange alternately. Supramolecular cation forms through the N-H…O hydrogen bonding interaction between the nitrogen atom of anilinium and oxygen atoms of crown ether derivatives. In the crystals of 1 and 2, each polyoxoanion is surrounded by six supramolecular cations and forms hexagonal arrangement viewed along the a axis. Crystalline structure and TGA indicated that phenyl rings in DB[18]crown-6 plays an important role in maintaining the stability of compound 1.
Keywords: inorganic-organic hybrids  supramolecular self-assembled  polyoxometallates  crown ether  supramolecular cation
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XIONG Jun,LÜ Shao-Fang,PENG Jun-Jun,LI Ming,LI Wei,YANG Shui-Bin.Two Inorganic-Organic Hybrid Crystals Based on Polyoxometallates and Supramolecular Cation:Syntheses and Crystal Structures[J].Chinese Journal of Inorganic Chemistry,2017,33(9):1649-1655.
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Chinese Journal of Inorganic Chemistry