Table 2. Comparison of unit-cell parameters of thiourea under ambient conditions (phase V) obtained by Tomkowiak & Katrusiak (2018 ▸), by Mullen et al. (1978 ▸) and in this study from a refinement of the diffraction data using TDS2EL2 .

Unit-cell parameter (Å)	Tomkowiak & Katrusiak (2018 ▸)	Mullen et al. (1978 ▸)	Present study
a	7.5791 (9)	7.657 (4)	7.567 (1)
b	8.533 (8)	8.588 (5)	8.55 (3)
c	5.4655 (3)	5.485 (3)	5.498 (5)