Table 2. Inter­molecular inter­action energies (in kcal mol⁻¹) for different mol­ecular pairs observed in the major component of the title compound; CD is the centroid-to-centroid distance.

Motif	CD (Å)	Symmetry	E Coul	E pol	E energy-dispersive	E rep	E tot	Possible inter­actions	Geometry (Å, °)a
M1	5.163	−x + 1, −y, −z + 1	−4.0	−1.4	−12.5	8.3	−9.5	C14—H14⋯Cg1	2.81, 130
M2	4.820	−x + 1, −y + 1, −z + 1	−3.1	−1.5	−11.5	7.4	−8.7	C15⋯C15(π–π)	3.274 (4)
M3	5.122	−x + , y − , z	−1.9	−1.0	−10.0	5.6	−7.3	C3—H3⋯Cg1	2.99, 153
		−x + , y + , z						C11—H11⋯Cg2	2.96, 111
M4	6.925	x − , −y + , −z + 1	−4.3	−1.6	−5.2	5.3	−5.9	C8—H8⋯N2	2.34, 156
								C10—H10⋯N2	2.66, 143
M5	11.134	−x + 1, y, −z +	−1.1	−0.5	−3.2	1.8	−2.8	C13—H13⋯Cl1	2.95, 152
M6	13.104	−x + , −y + , z −	−0.6	−0.4	−2.8	2.1	−1.6	C4—H4⋯Cl1	2.98, 114

Note: (a) neutron values are given for all D—H⋯A inter­actions.