2-(Trimethyl-siloxy)adamantane-2-carbonitrile.

In the crystal structure of the title compound, C(14)H(23)NOSi, cyclic dimeric units are established by two very weak hydrogen bonds of the type C-H⋯N with an H⋯N distance which is only slightly shorter than the sum of the van der Waals radii of 2.75†à . The graph-set descriptor on the unitary level is R(2) (2)(14) for the cyclic dimer.