Table 2. A summary of short inter­atomic contacts (Å) for (I) ^a .

Contact	Distance	Symmetry operation
O1—H1O⋯S1 b	2.20	x − 1, y + 1, z
N2—H2N⋯O1 b	2.19	x + 1, y − 1, z
S1⋯S1	3.35	−x + 2, −y + 1, −z + 1
C11—H11A⋯S1	2.75	−x + 2, −y + 1, −z + 1
C11—H11B⋯O1	2.50	x + 1, y, z
C9—H9A⋯Cg(C2–C7)	2.90	−x + 2, −y + 1, −z + 1
C6—H6⋯Cg(C12–C17)	2.84	−x + 1, −y + 2, −z + 1
C4—H4⋯Cg(C12–C17)	2.90	−x + 1, −y + 1, −z + 1
H1O⋯H2N	2.05	x − 1, y + 1, z

Notes: (a) The inter­atomic distances are calculated in Crystal Explorer 17 (Turner et al., 2017 ▸) with the X—H bond lengths adjusted to their neutron values. (b) This contact corresponds to a conventional hydrogen bond.