SYNTHESIS AND CRYSTAL-STRUCTURE OF CU9TI2 [B2O5]2[BO3]2O6-A COPPER TITANIUM BORATE PYROBORATE OXIDE

Authors
SCHAEFER J BLUHM K
Citation
J. Schaefer et K. Bluhm, SYNTHESIS AND CRYSTAL-STRUCTURE OF CU9TI2 [B2O5]2[BO3]2O6-A COPPER TITANIUM BORATE PYROBORATE OXIDE, Zeitschrift fur anorganische und allgemeine Chemie, 620(9), 1994, pp. 1583-1588
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
ISSN journal
00442313 → ACNP
Volume
620
Issue
9
Year of publication
1994
Pages
1583 - 1588
Database
ISI
SICI code
0044-2313(1994)620:9<1583:SACOC[>2.0.ZU;2-4
Abstract
The new compound Cu9Ti2[B2O5]2[BO3]2O6 was prepared by a B2O3 flux-tec hnique and crystallizes in a triclinic and completely novel structure type. X-ray investigations on single crystals led to the space group C (i)1-P1BAR (Nr.2); a = 7.246(4) angstrom; b = 10.637(5) angstrom; c = 11.436(6) angstrom; alpha = 104.53(5)-degrees; beta = 96.25(4)-degrees ; gamma = 90.36(3)-degrees; Z = 2. The metal distribution is ordered. Ti(IV)-sites are distorted octahedraly coordinated by oxygen-ions. The copper oxygen polyhedra are distorted square planar or pyramidal resp ectively. The structure contains isolated planar BO3-units, nearly pla nar pyroborate groups and oxygen which is not coordinated to boron.