Email this article New polymorph of CaHPO4 (monetite): synthesis and crystal structure
- Authors: Ouerfelli N.1,2, Zid M.F.1
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Affiliations:
- Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis
- Université de Tunis Carthage
- Issue: Vol 57, No 3 (2016)
- Pages: 628-631
- Section: Brief Communications
- URL: https://journals.rcsi.science/0022-4766/article/view/159836
- DOI: https://doi.org/10.1134/S0022476616030252
- ID: 159836
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Abstract
A novel form of anhydrous dicalcium phosphate CaHPO4 (monetite) is synthesized hydrothermally and characterized by single crystal X-ray diffraction. It crystallizes in the orthorhombic space group Ccm21 with a = 6.242(1) Å, b = 6.994(2) Å, c = 7.003(3) Å, V = 305.73(16) Å3 and it has four independent unit formulas in the unit cell (Z = 4). A three-dimensional crystal structure can be described by {HPO4}n infinite zigzag chains linked by Ca–O bonds. The comparison to the crystal structures of other polymorphs is given.
About the authors
N. Ouerfelli
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis; Université de Tunis Carthage
Author for correspondence.
Email: najouerf@yahoo.fr
Tunisia, Tunis; Zarzouna (Bizerte)
M. F. Zid
Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis
Email: najouerf@yahoo.fr
Tunisia, Tunis
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