Table 5. Experimental details.

	I	II
Crystal data
Chemical formula	C15H11NO5·0.07H2O	C15H11NO5
M r	286.58	285.25
Crystal system, space group	Monoclinic, C2/c	Monoclinic, P21/c
Temperature (K)	150	100
a, b, c (Å)	26.225 (6), 7.9955 (17), 13.772 (3)	12.209 (5), 14.307 (6), 7.418 (3)
β (°)	111.080 (3)	92.815 (7)
V (Å3)	2694.5 (10)	1294.2 (9)
Z	8	4
Radiation type	Mo Kα	Mo Kα
μ (mm−1)	0.11	0.11
Crystal size (mm)	0.21 × 0.18 × 0.12	0.15 × 0.15 × 0.1
Data collection
Diffractometer	Bruker APEXII CCD	Bruker APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2016 ▸)	Multi-scan (SADABS, Bruker, 2016 ▸)
T min, T max	0.687, 0.746	0.650, 0.746
No. of measured, independent and observed [I > 2σ(I)] reflections	22632, 4010, 2983	5087, 3620, 2913
R int	0.056	0.016
(sin θ/λ)max (Å−1)	0.711	0.741
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.042, 0.116, 1.05	0.040, 0.122, 1.06
No. of reflections	4010	3620
No. of parameters	244	234
No. of restraints	4	0
H-atom treatment	Only H-atom coordinates refined	All H-atom parameters refined
Δρmax, Δρmin (e Å−3)	0.28, −0.24	0.43, −0.23

Computer programs: APEX3 and SAINT (Bruker, 2016 ▸), SHELXT2017/1 (Sheldrick, 2015a ▸), SHELXL2017/1 (Sheldrick, 2015b ▸), OLEX2 (Dolomanov et al., 2009 ▸) and Mercury (Macrae et al., 2020 ▸).