Hydrothermal synthesis of hydrous vanadium oxide bronzes M{sub x}V{sub 3}O{sub 8}(VO){sub y}{center_dot}nH{sub 2}O (M = K, Rb, Ba)
Journal Article
·
· Materials Research Bulletin
- Kyoto Univ. (Japan)
Hydrous vanadium (IV, V) oxides containing K or Rb were synthesized by the hydrothermal method from VOSO{sub 4}-M{sub 2}SO{sub 4} (M = K, Rb) solutions. they were found to be isomorphous with previously reported Ba{sub 0.4}V{sub 3}O{sub 8}(VO){sub 0.4}{center_dot}nH{sub 2}O, whose structure consists of V{sub 3}O{sub 8} layers which are bridged by V-O units (denoted by (VO){sub 0.4} in the formula) forming a tunnel-like opening to accommodate hydrous Ba ions. The isomorphous compounds can be formulated by J{sub x}V{sub 3}O{sub 8}(VO){sub y}{center_dot}nH{sub 2}O (M = K, Rb, Ba; n = 0.6--0.7) where x and y show similar values of less than 0.5 as is accounted for by the crystal structure. The formation of this phase seems to be governed by the size of M cation whose ionic radius should lie in a limited range of 1.35 to 1.52 {angstrom}. The V{sub 3}O{sub 8}(VO){sub y} framework structure of a bronze-like type is compared with the V{sub 2}O{sub 5} framework of {beta}-M{sub x}V{sub 2}O{sub 5} ({beta} bronze) and the V{sub 3}O{sub 8} framework of H{sub 2}V{sub 3}O{sub 8}.
- OSTI ID:
- 455226
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 1 Vol. 32; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two new barium-vanadium(IV) phases: Ba(VO){sub 2}(SeO{sub 3}){sub 2}(HSeO{sub 3}){sub 2}, the first barium vanadium selenite, and Ba{sub 8}(VO){sub 6}(PO{sub 4}){sub 2}(HPO{sub 4}){sub 11}{center_dot}3H{sub 2}O, a compound built up from two types of one-dimensional chains
Hydrothermal synthesis and crystal structure of barium hewettite: BaV{sub 6}O{sub 16}{center_dot}nH{sub 2}O
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)
Journal Article
·
Fri Mar 31 23:00:00 EST 1995
· Journal of Solid State Chemistry
·
OSTI ID:70182
Hydrothermal synthesis and crystal structure of barium hewettite: BaV{sub 6}O{sub 16}{center_dot}nH{sub 2}O
Journal Article
·
Sat Oct 31 23:00:00 EST 1998
· Journal of Solid State Chemistry
·
OSTI ID:305371
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)
Journal Article
·
Tue Mar 26 23:00:00 EST 1996
· Inorganic Chemistry
·
OSTI ID:264064