Disilver(I) tricobalt(II) hydrogenphos­phate bis­(phosphate), Ag2Co3(HPO4)(PO4)2

Assani, A.; El Ammari, L.; Zriouil, M.; Saadi, M.

doi:10.1107/S1600536811022598

Volume 67
Part 7
Page i41
July 2011

Received 30 April 2011
Accepted 10 June 2011
Online 18 June 2011

Key indicators
Single-crystal X-ray study
T = 296 K
Mean (P-O) = 0.004 Å
R = 0.028
wR = 0.064
Data-to-parameter ratio = 14.0
Details

Disilver(I) tricobalt(II) hydrogenphosphate bis(phosphate), Ag₂Co₃(HPO₄)(PO₄)₂

Abderrazzak Assani,^a ^* Lahcen El Ammari,^a Mohammed Zriouil ^a and Mohamed Saadi ^a

^aLaboratoire de Chimie du Solide Appliquée, Faculté des Sciences, Université Mohammed V-Agdal, Avenue Ibn Battouta, BP 1014, Rabat, Morocco
Correspondence e-mail: abder_assani@yahoo.fr

Ag₂Co₃(HPO₄)(PO₄)₂ contains CoO₆ octahedra and phosphate groups linked to form a three-dimensional network defining tunnels parallel to the a axis that are occupied by Ag⁺ ions.

Related literature

Compounds prepared hydrothermally in the Ag₂O-MO-P₂O₅ (M = divalent cation) system include AgMg₃(PO₄)(HPO₄)₂ (Assani et al., 2011a), AgMn₃(PO₄)(HPO₄)₂ (Leroux et al., 1995), AgCo₃(PO₄)(HPO₄)₂ (Guesmi & Driss, 2002), AgNi₃(PO₄)(HPO₄)₂ (Ben Smail & Jouini, 2002), Ag₂Ni₃(HPO₄)(PO₄)₂ (Assani et al., 2011b) and [gamma] -AgZnPO₄ (Assani et al., 2010).

Experimental

Crystal data

Ag₂Co₃(HPO₄)(PO₄)₂
M_r = 678.44
Orthorhombic, I m a 2
a = 12.9814 (4) Å
b = 6.5948 (2) Å
c = 10.7062 (3) Å
V = 916.55 (5) Å³
Z = 4
Mo K radiation
= 10.11 mm^-1
T = 296 K
0.26 × 0.12 × 0.09 mm

Data collection

Bruker X8 APEX diffractometer
Absorption correction: multi-scan (MULABS; Blessing, 1995) T_min = 0.365, T_max = 0.424
3966 measured reflections
1388 independent reflections
1368 reflections with I > 2(I)
R_int = 0.021

Refinement

R[F² > 2(F²)] = 0.028
wR(F²) = 0.064
S = 1.05
1388 reflections
99 parameters
1 restraint
H-atom parameters constrained
_max = 1.81 e Å^-3
_min = -1.54 e Å^-3
Absolute structure: Flack (1983), 653 Friedel pairs
Flack parameter: 0.55 (3)

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O4-H4O4ⁱ	0.86	1.86	2.626 (7)	148
Symmetry code: (i) $[-x-{\script{1\over 2}}, y, z]$ .

Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: MG2119 ).

Acknowledgements

The authors thank the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.

References

Assani, A., Saadi, M. & El Ammari, L. (2010). Acta Cryst. E66, i74.
Assani, A., Saadi, M., Zriouil, M. & El Ammari, L. (2011a). Acta Cryst. E67, i5.
Assani, A., El Ammari, L., Zriouil, M. & Saadi, M. (2011b). Acta Cryst. E67, i40.
Ben Smail, R. & Jouini, T. (2002). Acta Cryst. C58, i61-i62.
Blessing, R. H. (1995). Acta Cryst. A51, 33-38.
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2005). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837-838.
Flack, H. D. (1983). Acta Cryst. A39, 876-881.
Guesmi, A. & Driss, A. (2002). Acta Cryst. C58, i16-i17.
Leroux, F., Mar, A., Guyomard, D. & Piffard, Y. (1995). J. Solid State Chem. 117, 206-212.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.

inorganic compounds