Table 2. Experimental details.

Crystal data
Chemical formula	C28H20O4·C4H4O
M r	488.51
Crystal system, space group	Tetragonal, P43212
Temperature (K)	200
a, c (Å)	9.5725 (3), 27.5760 (11)
V (Å3)	2526.86 (18)
Z	4
Radiation type	Mo Kα
μ (mm−1)	0.09
Crystal size (mm)	0.24 × 0.23 × 0.15
Data collection
Diffractometer	Bruker D8 Quest CCD
Absorption correction	Multi-scan (SADABS; Krause et al., 2015 ▸)
Tmin, Tmax	0.717, 0.746
No. of measured, independent and observed [I > 2σ(I)] reflections	62563, 2796, 2460
R int	0.080
(sin θ/λ)max (Å−1)	0.641
Refinement
R[F2 > 2σ(F2)], wR(F2), S	0.056, 0.176, 1.09
No. of reflections	2796
No. of parameters	182
No. of restraints	60
H-atom treatment	H-atom parameters constrained
Δρmax, Δρmin (e Å−3)	0.61, −0.49
Absolute structure	Refined as an inversion twin

Computer programs: APEX2 and SAINT (Bruker, 2014 ▸), SHELXS97 (Sheldrick 2008 ▸), SHELXL2019/3 (Sheldrick, 2015 ▸), ORTEP-3 for Windows (Farrugia, 2012 ▸), Mercury (Macrae et al., 2020 ▸) and PLATON (Spek, 2020 ▸).