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Synthesis and Crystal Structure of Cs 2 (CN 3 H 6 ) 3 [(C 2 H 5 ) 2 NH 2 ][W 7 O 22 (O 2 ) 2 ]·3H 2 O
Author(s) -
Suzuki Hiroyuki,
Hashimoto Masato,
Okeya Seichi
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400050
Subject(s) - chemistry , crystallography , crystal structure , tungsten , caesium , x ray crystallography , metal , bent molecular geometry , crystal (programming language) , single crystal , stereochemistry , diffraction , inorganic chemistry , physics , programming language , organic chemistry , computer science , optics
A novel diperoxoheptatungstate was crystallised as a Cs + −CN 3 H 6 + −(C 2 H 5 ) 2 NH 2 + salt and characterised by a single‐crystal X‐ray diffraction method. The anion has a Lindqvist heptametallate structure. The metal atoms are located in a bent 2‐3‐2 arrangement with the central W 3 section (W3, W4 and W5) as the hinge. The peroxo groups coordinate the tungsten atoms at both ends of the W 3 section (W3 and W5). In the crystal polyanions, caesium and guanidinium cations, and water of crystallisation form tunnel‐like cavities, and the diethylammonium cations are accommodated in the cavities, suggesting a clathrate‐like feature for the compound. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)