Table 2. Experimental details.

Crystal data
Chemical formula	C12H9N2 +C6H2N3O8
M r	425.32
Crystal system, space group	Monoclinic, P21/n
Temperature (K)	296
a, b, c ()	10.0984(7), 19.0072(14), 10.5124(7)
()	118.419(2)
V (3)	1774.6(2)
Z	4
Radiation type	Mo K
(mm1)	0.13
Crystal size (mm)	0.35 0.30 0.25
Data collection
Diffractometer	Bruker Kappa APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2004 ▸)
T min, T max	0.952, 0.970
No. of measured, independent and observed [I > 2(I)] reflections	35336, 4007, 2551
R int	0.040
(sin /)max (1)	0.648
Refinement
R[F 2 > 2(F 2)], wR(F 2), S	0.042, 0.125, 1.01
No. of reflections	4007
No. of parameters	284
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
max, min (e 3)	0.24, 0.22

Computer programs: APEX2 and SAINT (Bruker, 2004 ▸), SIR92 (Altomare et al., 1993 ▸), SHELXL2014 (Sheldrick, 2015 ▸), ORTEP-3 for Windows (Farrugia, 2012 ▸) and Mercury (Macrae et al., 2008 ▸).