Abstract
Single crystals of 3Bi 2O 3:5B 2O 3 have been obtained from the melt and subsequent devitrification of the glassy compound, at 450°C during 90 hr. The compound is orthorhombic, space group Pnma with two formula units in the cell. The lattice parameters are a = 6.532 Å, b = 7.733 Å, c = 18.566 Å. The structure was solved from a complete set of three-dimensional Mo K α diffractometer data, the final R being 0.097. The structure is made up of Bi 3+ cations and O 2− and (B 5O 11) 7− anions. The pentaborate anion is formed by two BO 4 tetrahedra and three BO 3 triangles, sharing edges and corners. An oxygen that is not bonded to any boron is in the center of a three-bismuth triangle. Two independent bismuth atoms are present in the structure. Bi(1) has six first-neighbor oxygens with an average BiO distance of 2.44 Å and Bi(2) has either six or seven oxygens in the first coordination sphere with an average BiO distance of 2.43 or 2.80 Å, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
