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The preparation of Cs 3 Mo(CN) 8 ·2H 2 O and Cs 3 W(CN) 8 ·2H 2 O
Author(s) -
Bok L. D. C.,
Leipoldt J. G.,
Basson S. S.
Publication year - 1975
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19754150111
Subject(s) - acetonitrile , nitric acid , chemistry , potassium , benzene , crystal structure , recrystallization (geology) , nuclear chemistry , inorganic chemistry , crystallography , organic chemistry , paleontology , biology
[HN(n‐C 4 H 9 ) 3 ] 3 M(CN) 8 4 H 2 O, where M = Mo or W, is formed as a light yellow or white water insoluble precipitate by adding tri‐n‐butylammonium ions to M(CN) 8 3− , obtained by oxidation of K 4 Mo(CN) 8 · 2H 2 O or K 4 W(CN) 8 ·2H 2 O with concentrated nitric acid. The precipitates are soluble in methyl and ethyl alcohol, benzene and acetonitrile. Crystal data were determined for crystals of the W v compound. The tri‐n‐butylammonium compound can be nearly quantitatively converted to Cs 3 M(CN) 8 · 2H 2 O with CsCl, which is fairly soluble in methyl alcohol. Crystal data were determined for light yellow crystals obtained by recrystallization. The potassium complex of W v can be prepared by using potassium acetate instead of CsCl.