Table 3. Experimental details.

Crystal data
Chemical formula	[Ba(C5HN2O6)(C2O4)0.5(H2O)2]
M r	804.92
Crystal system, space group	Monoclinic, P21/c
Temperature (K)	296
a, b, c ()	10.3283(11), 7.9868(8), 13.0760(14)
()	96.419(2)
V (3)	1071.88(19)
Z	2
Radiation type	Mo K
(mm1)	3.76
Crystal size (mm)	0.16 0.12 0.03
Data collection
Diffractometer	Bruker APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2004 ▸)
T min, T max	0.586, 0.746
No. of measured, independent and observed [I > 2(I)] reflections	11240, 3410, 2692
R int	0.036
(sin /)max (1)	0.736
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.038, 0.093, 1.05
No. of reflections	3410
No. of parameters	172
No. of restraints	6
H-atom treatment	H-atom parameters constrained
max, min (e 3)	2.31, 1.67

Computer programs: APEX2 and SAINT (Bruker, 2004 ▸), SHELXS97 and SHELXTL (Sheldrick, 2008 ▸), SHELXL2013 (Sheldrick, 2015 ▸), ORTEP (Johnson Burnett, 1996 ▸) and Mercury (Macrae et al., 2008 ▸).