| Crystal data |
| Chemical formula |
2C7H7N2O+·C2O4
2−
|
|
M
r
|
358.31 |
| Crystal system, space group |
Monoclinic, P21/n
|
| Temperature (K) |
293 |
|
a, b, c (Å) |
6.5080 (2), 17.6943 (7), 13.6264 (5) |
| β (°) |
100.200 (4) |
|
V (Å3) |
1544.34 (10) |
|
Z
|
4 |
| Radiation type |
Cu Kα |
| μ (mm−1) |
1.03 |
| Crystal size (mm) |
0.17 × 0.14 × 0.12 |
| |
| Data collection |
| Diffractometer |
XtaLAB Synergy, Single source at home/near, HyPix3000 |
| Absorption correction |
Multi-scan (CrysAlis PRO; Rigaku OD, 2020 ▸) |
|
T
min, T
max
|
0.157, 1.000 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
2960, 2960, 2288 |
|
R
int
|
0.031 |
| (sin θ/λ)max (Å−1) |
0.615 |
| |
| Refinement |
|
R[F
2 > 2σ(F
2)], wR(F
2), S
|
0.045, 0.132, 1.04 |
| No. of reflections |
2960 |
| No. of parameters |
259 |
| No. of restraints |
6 |
| H-atom treatment |
H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) |
0.23, −0.20 |
