(XI)	(XII)	(XIII)	(XIV)	(XV)
Crystal data
Chemical formula	C11H17N2O+·C7H3N2O6 −·2H2O	C11H17N2O+·C6H2N3O7 −	C11H17N2O+·C4H3O4 −	C11H17N2O+·C4H3O4 −	C11H17N2O+·C4H5O6 −·1.698H2O
M r	440.41	421.33	308.33	308.33	372.97
Crystal system, space group	Triclinic, P	Triclinic, P	Triclinic, P	Triclinic, P	Monoclinic, P21
Temperature (K)	296	296	296	296	296
a, b, c (Å)	7.8448 (6), 11.4635 (9), 12.0747 (9)	9.4151 (5), 9.8721 (5), 10.9572 (5)	11.1076 (6), 11.1164 (6), 13.7649 (7)	7.8546 (4), 8.9626 (6), 11.2056 (8)	7.479 (1), 7.065 (1), 17.788 (3)
α, β, γ (°)	94.406 (7), 105.075 (8), 93.717 (7)	77.524 (4), 81.360 (5), 81.002 (5)	80.353 (5), 78.353 (5), 74.406 (5)	79.043 (5), 87.715 (5), 85.840 (5)	90, 101.58 (2), 90
V (Å3)	1041.33 (14)	974.97 (9)	1591.76 (16)	772.15 (9)	920.8 (2)
Z	2	2	4	2	2
Radiation type	Mo Kα	Mo Kα	Mo Kα	Mo Kα	Mo Kα
μ (mm−1)	0.11	0.12	0.10	0.10	0.11
Crystal size (mm)	0.48 × 0.48 × 0.44	0.48 × 0.48 × 0.24	0.48 × 0.40 × 0.36	0.48 × 0.48 × 0.34	0.36 × 0.32 × 0.12
Data collection
Diffractometer	Oxford Diffraction Xcalibur with Sapphire CCD	Oxford Diffraction Xcalibur with Sapphire CCD	Oxford Diffraction Xcalibur with Sapphire CCD	Oxford Diffraction Xcalibur with Sapphire CCD	Oxford Diffraction Xcalibur with Sapphire CCD
Absorption correction	Multi-scan (CrysAlis RED; Oxford Diffraction, 2009 ▸)	Multi-scan (CrysAlis RED; Oxford Diffraction, 2009 ▸)	Multi-scan (CrysAlis RED; Oxford Diffraction, 2009 ▸)	Multi-scan (CrysAlis RED; Oxford Diffraction, 2009 ▸)	Multi-scan (CrysAlis RED; Oxford Diffraction, 2009 ▸)
T min, T max	0.892, 0.951	0.805, 0.973	0.863, 0.966	0.867, 0.967	0.956, 0.987
No. of measured, independent and observed [I > 2σ(I)] reflections	7353, 4419, 3409	12926, 4279, 3276	11727, 6817, 4221	5533, 3307, 2608	3655, 2895, 2062
R int	0.016	0.017	0.012	0.009	0.022
(sin θ/λ)max (Å−1)	0.654	0.656	0.657	0.655	0.658
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.039, 0.108, 1.06	0.040, 0.119, 1.07	0.042, 0.121, 1.03	0.036, 0.105, 1.06	0.039, 0.081, 0.97
No. of reflections	4419	4279	6817	3307	2895
No. of parameters	300	317	415	240	263
No. of restraints	0	85	0	6	4
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement	H atoms treated by a mixture of independent and constrained refinement	H atoms treated by a mixture of independent and constrained refinement	H-atom parameters constrained	H atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3)	0.23, −0.17	0.24, −0.27	0.15, −0.17	0.20, −0.15	0.14, −0.17

Computer programs: CrysAlis CCD and CrysAlis RED (Oxford Diffraction, 2009 ▸), SHELXT (Sheldrick, 2015a ▸), SHELXL2014 (Sheldrick, 2015b ▸) and PLATON (Spek, 2020 ▸).