Abstract
The hydrothermal reaction of RbVO3, (NH4)2B4O7 · 4H2O, ethylenediamine (en), and H2O in a mole ratio of 1:8:2:135 heated at 170°C for 5 days produces pale green crystals of the novel polyoxovanadium borate cluster compound Rb4[(VO)6{B10O16(OH) 6}2] · 0.5H2O (1) which contains [V6B20O38(OH)12]4- clusters, each cluster comprising a nearly hexagonal ring of six trans-edge-sharing VO5 square pyramids capped on each side by a B10O16(OH)68- triangle. The [V6B20O38(OH)12]4- clusters are separated in the solid state by Rb+ cations. Magnetic susceptibility and valence sum calculations indicate that all six of the vanadium atoms in the cluster are in the 4+ oxidation state.
Original language | English (US) |
---|---|
Pages (from-to) | 2599-2605 |
Number of pages | 7 |
Journal | Polyhedron |
Volume | 17 |
Issue number | 16 |
DOIs | |
State | Published - Jun 30 1998 |
Externally published | Yes |
Keywords
- Hydrothermal synthesis
- Polyoxometalates
- Polyoxovanadium borates
- X-ray structures
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry