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Solid state synthesis and structure of two novel polyoxometalates [( n ‐Bu) 4 N] 4 [M 6 O 19 ][Ag 2 I 4 ](MMo, W) †
Author(s) -
HongWei Hou,
XinQuan Xin,
KaiBei Yu,
ZheMin Wang,
ShiXiong Liu,
JinLing Huang
Publication year - 1996
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19960140206
Subject(s) - chemistry , monoclinic crystal system , crystallography , solid state , polyoxometalate , crystal structure , group (periodic table) , cluster (spacecraft) , stereochemistry , organic chemistry , computer science , programming language , catalysis , biochemistry
The reaction of [NH 4 ] 2 [MO 2 S 2 ], AgI and ( n ‐Bu) 4 NBr in solid state produced the polyoxometalates [( n ‐Bu) 4 N] 4 [M 6 O 19 ][Ag 2 I 4 ] (1, MMo; 2, MW) which were structurally determined. The crystals of 1 and 2 are isomorphous, monoclinic, space group P 2 1 / c. 1, a = l.6624(2), b =1.6699(3), c =l.7217(2) nm, β=98.29(1)°, V =4.729(1) nm 3 , Z =2, R =0.040, R w “0.037; 2, a = 1.6636(3), b = 1.6733(3), c = 1.7190(3) nm, β=98.25(1)°, V =4.736(l) nm 3 , Z = 2, R = 0.038, R w = 0.047. The results of the structure determination showed that the two compounds had the same structures whose skeletons are composed of [Ag 2 I 4 ] 2 . and [M 6 O 19 ] 2‐ . The difference of them and heteropolymetalate compounds synthesized in solution is that the title compounds contain cluster. ion, heteropolymetalate and organic cations, while the latter is only composed of heteropolymetalate and organic cations.