| [Ni(C18H18S2)2] | F(000) = 688 |
| Mr = 655.60 | Dx = 1.354 Mg m−3 |
| Monoclinic, P21/c | Cu Kα radiation, λ = 1.54178 Å |
| a = 8.4446 (2) Å | Cell parameters from 9778 reflections |
| b = 14.0911 (2) Å | θ = 6.3–72.3° |
| c = 13.5880 (2) Å | µ = 3.47 mm−1 |
| β = 96.133 (1)° | T = 150 K |
| V = 1607.63 (5) Å3 | Prism, black |
| Z = 2 | 0.14 × 0.14 × 0.04 mm |