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Synthesis of a new salt containing polyoxometallate anion and MCuS cluster cation [MS 4 Cu 4 (γ‐MePy) 8 ][M 6 O 19 ] (M = Mo, W). Crystal structure of [WS 4 Cu 4 (γ‐MePy) 8 ] [W 6 O 19 ]
Author(s) -
Pope Michael T.,
Lang JianPing,
Xin XinQuan,
Yu KaiBei
Publication year - 1995
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.19950130107
Subject(s) - chemistry , orthorhombic crystal system , cluster (spacecraft) , crystallography , ion , pyridine , salt (chemistry) , crystal structure , copper , single crystal , medicinal chemistry , organic chemistry , computer science , programming language
Reactions of (NH 4 ) 2 MS 4 , AgBr and CuBr in γ‐methylpyridine produced one new compound, [MS 4 Cu 4 (γ‐MePy)8][M 6 O 19 ] (1, M = W; 2 , M = Mo), of which 1 was characterized by single crystal X‐ray analysis. The crystal data: orthorhombic, Pbcn, a = 15.434(4), b = 16.732(2), c = 28.657(7) Å, V = 7400.8(8) Å 3 , Z = 4 , R = 0.072 for 3121 independent data. The compound is the first example which contains both polyoxotungstate anion and heteropolynuclear cluster cation. In the structure of the cation four edges of the tetrahedral WS 2− 4 core are coordinated by four copper atoms, giving a WS 4 Cu 4 aggregate of approximate D 2h symmetry. The differences between the reaction of Cu + with MS 2− 4 and that of Ag+ with MS 2− 4 in pyridine and its derivatives are discussed.