Hydrothermal synthesis and characterization of novel one-dimensional tellurites of molybdenum(VI), A{sub 4}Mo{sub 6}TeO{sub 22}{center_dot}2H{sub 2}O (A = NH{sub 4}, Rb)
Journal Article
·
· Inorganic Chemistry
OSTI ID:343685
- Indian Inst. of Tech., Madras (India). Dept. of Chemistry
Two novel, isostructural, one-dimensional tellurites of molybdenum(VI), (NH{sub 4}){sub 4}Mo{sub 6}TeO{sub 22}{center_dot}2H{sub 2}O and Rb{sub 4}Mo{sub 6}-TeO{sub 22}{center_dot}2H{sub 2}O, have been synthesized by hydrothermal method. They contain linear (Mo{sub 6}TeO{sub 22}){sup 4{minus}} anionic chains, parallel to one another and held together by NH{sub 4}{sup +}/Rb{sup +} ions. Mo{sub 6}O{sub 22} moieties, formed by edge-sharing of six MoO{sub 6} octahedra, are connected through tellurium resulting in the (Mo{sub 6}TeO{sub 22}){sup 4{minus}} anionic chain. Tellurium is four-coordinated with SF{sub 4} geometry. The water of crystallization occupies the rest of the lattice. Both compounds have been structurally characterized by single-crystal X-ray diffraction studies. Hydrothermal syntheses, structure, powder X-ray diffraction, spectroscopy, and thermal studies of these compounds are described.
- OSTI ID:
- 343685
- Journal Information:
- Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 7 Vol. 38; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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· Journal of Solid State Chemistry
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OSTI ID:21128417
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Sun Dec 12 23:00:00 EST 1999
· Inorganic Chemistry
·
OSTI ID:20013077
Retention of structural cores in the synthesis of high-nuclearity polyoxoalkoxomolybdate clusters encapsulating [Na(H{sub 2}O){sub 3}]{sup +} and [MoO{sub 3}] moieties. Hydrothermal syntheses and structures of (NH{sub 4}){sub 7}[NaH{sub 12}Mo{sub 16}O{sub 52}]{center_dot}4H{sub 2}O and (Me{sub 3}NH){sub 4}K{sub 2}[H{sub 14}Mo{sub 16}O{sub 52}]{center_dot}8H{sub 2}O and their structural relationships to the class of superclusters [XH{sub n}Mo{sub 42}O{sub 109}((OCH{sub 2}){sub 3}CR){sub 7}]{sup m{minus}} (X = Na(H{sub 2}O){sub 3}{sup +}: n=13, m=9; n=15, m=7. X = MoO{sub 3}: n = 14, m=9; n=13, m=10)
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Tue Mar 26 23:00:00 EST 1996
· Inorganic Chemistry
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OSTI ID:264064