Table 2. Experimental details.

Crystal data
Chemical formula	Na4[Mo2O2(OH)4(C6H4NO2)2]2[Mo120Ce6O366H12(OH)2(H2O)76]∼200H2O
M r	24391.76
Crystal system, space group	Monoclinic, C2/c
Temperature (K)	200
a, b, c (Å)	54.272 (10), 38.896 (7), 31.734 (6)
β (°)	112.145 (4)
V (Å3)	62047 (19)
Z	4
Radiation type	Mo Kα
μ (mm−1)	2.97
Crystal size (mm)	0.18 × 0.15 × 0.08
Data collection
Diffractometer	Bruker APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2016 ▸)
T min, T max	0.583, 0.745
No. of measured, independent and observed [I > 2σ(I)] reflections	373860, 32484, 23243
R int	0.101
θmax (°)	20.9
(sin θ/λ)max (Å−1)	0.502
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.083, 0.234, 1.07
No. of reflections	32484
No. of parameters	2814
No. of restraints	239
H-atom treatment	H-atom parameters constrained
Δρmax, Δρmin (e Å−3)	3.03, −2.19

Computer programs: APEX2 (Bruker, 2016 ▸), SAINT (Bruker, 2016 ▸), SHELXT2018 (Sheldrick, 2015a ▸), PLATON (Spek, 2020 ▸), SHELXL2018 (Sheldrick, 2015b ▸), OLEX2 (Dolomanov et al., 2009 ▸), DIAMOND (Brandenburg, 2006 ▸) and shelXle (Hübschle et al., 2011 ▸).