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Hydrated Alkali Metal and Ammonium Salts of the [P 2 Se 6 ] 4– Anion
Author(s) -
Rothenberger Alexander,
Malliakas Christos D.,
Kanatzidis Mercouri G.
Publication year - 2009
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.200900184
Subject(s) - alkali metal , chemistry , ammonium , inorganic chemistry , selenium , ion , metal , qualitative inorganic analysis , nuclear magnetic resonance spectroscopy , spectroscopy , nuclear chemistry , stereochemistry , organic chemistry , physics , quantum mechanics
The synthesis and structures of the five new compounds [Na 4 (P 2 Se 6 )(H 2 O) 6 ], [M 4 (P 2 Se 6 )(H 2 O) 4 ] (M = K, Rb, Cs) and [(NH 4 ) 4 (P 2 Se 6 )(H 2 O) 2 ] are reported. The salts were obtained from reactions of metal carbonates with P 4 Se 10 in water and in ambient atmosphere. During the heterogeneous reactions, the selenophosphate salts, CO 2 and elemental selenium is formed together with the [P 2 O 6 ] 4– ion and most likely other phosphate/selenophosphate derivatives. The ethane‐like [P 2 Se 6 ] 4– anion was characterized in solution by 31 P NMR spectroscopy showing an ABX pattern.