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Hydrothermal Synthesis and Crystal Structure of Novel Alkali Trimolybdates
Author(s) -
Michailovski Alexej,
Patzke Greta R.
Publication year - 2007
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.200600217
Subject(s) - alkali metal , triclinic crystal system , hydrothermal circulation , halide , crystallography , chemistry , hydrothermal synthesis , crystal structure , context (archaeology) , hydrothermal reaction , single crystal , crystal (programming language) , inorganic chemistry , chemical engineering , organic chemistry , geology , paleontology , programming language , computer science , engineering
Novel alkali trimolybdates of the triclinic (M, M′) 2 Mo 3 O 10 (M = Rb; M′ = K, Cs) type were obtained through a systematic hydrothermal approach based on the reaction of MoO 3 with alkali halide solutions at 180 °C. The crystal structures were determined from X‐ray single crystal data. The alkali trimolybdates extend the family of known alkali trimolybdates in an unexpected fashion, because they contain a distorted variation of [Mo 3 O 10 ] 2− chains as a key structural motif that has only been found in a single compound before, namely ethylenediammonium trimolybdate, (C 2 H 10 N 2 )[Mo 3 O 10 ]. The applied hydrothermal strategy is discussed in the general context of systematic pathways to polyoxomolybdates. Furthermore, the templating role of the alkali cations and their interaction with the polyoxomolybdate surroundings is compared to (C 2 H 10 N 2 )[Mo 3 O 10 ] in terms of electrostatic calculations.