L. Taher, L. Smiri, Y. Laligant
Jul 1, 2000
Citations
1
Influential Citations
20
Citations
Journal
IEEE Journal of Solid-state Circuits
Abstract
Abstract The hydrothermal synthesis, initial characterization (EDX analysis, IR, X-ray powder pattern), and X-ray single-crystal structure are reported for a new form of strontium hydrogen phosphate ( γ -SrHPO 4 ). The cell is orthorhombic, space group Pbca (No. 61) with a =8.131(3) A, b =9.258(5) A, c =18.084(7) A, V =1361.31(2) A 3 , and Z =16. The structure was determined from 1272 observed reflections to a final R value of 0.039. The atomic arrangement consists of two kinds of anionic layers (P(1) and P(2)) lying parallel to (001), formed by closed dimers and infinite chains of H-bonded HPO 2− 4 groups, respectively. These sheets are linked to each other via Sr 2+ cations. Comparison to the crystal structure of CaBa(HPO 4 ) 2 is also given, the two compounds exhibiting the same arrangement.