Table 1. Experimental details.

Crystal data
Chemical formula	Na2Co2Fe(PO4)3
M r	504.60
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	296
a, b, c ()	11.7106(6), 12.4083(7), 6.4285(3)
()	113.959(2)
V (3)	853.63(8)
Z	4
Radiation type	Mo K
(mm1)	6.26
Crystal size (mm)	0.31 0.25 0.19
Data collection
Diffractometer	Bruker X8 APEX
Absorption correction	Multi-scan (SADABS; Bruker, 2009 ▸)
T min, T max	0.504, 0.748
No. of measured, independent and observed [I > 2(I)] reflections	15289, 1882, 1807
R int	0.030
(sin /)max (1)	0.806
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.016, 0.046, 1.10
No. of reflections	1879
No. of parameters	95
max, min (e 3)	0.70, 0.92

Computer programs: APEX2 and SAINT (Bruker, 2009 ▸), SHELXS97 and SHELXL97 (Sheldrick, 2008 ▸), ORTEP-3 for Windows (Farrugia, 2012 ▸), DIAMOND (Brandenburg, 2006 ▸) and publCIF (Westrip, 2010 ▸).