Table 3. Mean values (Å) of Si—Si, Si—Cl bond lengths and Cl/N⋯Cg contacts in the title compounds and related structures.

X = Cl for (I) and (II) and X = N for ELAFON and ELAFIH. The row for Si₆Cl₁₂ contains data for dichloride dodeca­chloro­hexa­silanes (Tillmann, Lerner & Bolte, 2015 ▸).

Structure	Si—Si	Si—Cl	X⋯Cg
(I)	2.342	2.092	2.143
(II)	2.344	2.092	2.151
ELAFON	2.363	2.049	2.174
ELAFIH	2.348	2.036	2.234
Si6Cl12	2.322	2.078	1.90