| Abstrakt: |
AbstractSingle crystals and powder samples of Ca2Bi5O5and Ca4Bi6O13have been synthesized and studied using single crystal X-ray diffraction as well as X-ray and neutron powder diffraction. Unit cell dimensions were calculated using a least squares analysis that refined to a ?2?of no more than 0.03?. A triclinic cell was found with space group , a = 10.1222(7), b = 10.1466(6), c = 10.4833(7) ?. ?= 116.912(5), ?= 107.135(6) and ?= 92.939(6)?, Z = 6 for the Ca2Bi2O5compound. An orthorhombic cell was found with space group C2mm, a = 17.3795(5), b = 5.9419(2) and c = 7.2306(2) ?, Z = 2 for the Ca4Bi6O13compound. |
