Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10632093 | Materials Research Bulletin | 2005 | 11 Pages |
Abstract
Chemical preparation, crystal structure, calorimetric and spectroscopic investigations (IR and RMN) are given for a new non-centrosymmetric organic-cation dihydrogen phosphate-arsenate [H2(C4H10N2)][H2(As, P)O4]2. This compound is triclinic P1 with the following unit-cell parameters: a = 7.082(2) Ã
, b = 7.796(1) Ã
, c = 12.05(3) Ã
, α = 95.37(2)°, β = 98.38(3)°, γ = 62.98(1)°, Z = 2, V = 586.2(1) Ã
3 and Dx = 1.836 g cmâ3. The crystal structure has been solved and refined to R = 0.03 using 2328 independent reflections. The structure can be described as infinite (H2XO)n chains spreading parallel to the b direction. These chains are themselves interconnected by a set of NHâ¯O hydrogen bonds generated by the organic entities, alternating with the chains. Solid-state 13C, 15N and 31P MAS NMR spectroscopies are in agreement with the X-ray structure.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A. Oueslati, C. Ben Nasr, A. Durif, F. Lefebvre,