Table 4. Cmethylene—Cmethyl and Cmethyl—Cmethyl intermolecular distances (Å) in the title structure of up to 4.5 Å.
C2, C2a correspond to the methylene carbon atoms while C3, C3a and C4, C4a correspond to methyl atoms.
| C2⋯C4v | 4.251 (6) | C3⋯C4vi | 3.992 (6) |
| C3⋯C4viii | 4.136 (6) | C4⋯C4ix | 3.984 (5) |
| C3a⋯C4a vii | 4.17 (2) | C3a⋯C4a vi | 4.25 (2) |
| C4a⋯C4a ix | 4.31 (2) | C2a⋯C3a x | 3.97 (2) |
| C2a⋯C4a x | 3.884 (19) | C2⋯C2a v | 3.960 (10) |
| C2⋯C4a x | 4.479 (16) | C3⋯C2a v | 4.128 (11) |
| C3⋯C3a x | 4.44 (2) | C3⋯C4a vii | 4.000 (15) |
| C3⋯C4a vi | 4.207 (15) | C4⋯C3a x | 4.48 (2) |
| C4⋯C3a xi | 4.087 (14) | C4⋯C3a viii | 4.43 (3) |
| C4⋯C4a x | 3.767 (17) | C4⋯C4a ix | 4.051 (17) |
Symmetry codes: (v) x, y + 1, z; (vi) x − 
, y + , z; (vii) x − , y − , z; (viii) −x + 1, −y, −z; (ix) −x + 
, −y + , −z; (x) x, y − 1, z; (xi) x + , y − , z; (xii) x + , y + , z.