Non-linear optical crystals of 2,2,3-tri­methyl-3-(1H-1,2,3,4-tetrazol-5-yl)­butane­nitrile

The title compound, C₈H₁₃N₅, is a novel functionally substituted 5-alkyl­tetrazole. The substituent on the tetrazole C atom is symmetrical, with intrinsic symmetry close to m. There is intermolecular N—H...N hydrogen bonding between adjacent tetrazole rings, which is responsible for the formation of one-dimensional polymeric chains running along the c axis. The polycrystalline compound exhibits frequency doubling for incident light (λ = 1064 nm) from a YAG:Nd pulsed laser.