A variable-temperature study of 1,2-bis-(dimethylamino)-1,2-bis-(2,6- dimethylanilino)diborane

Article abstract of DOI:10.1107/S0108270111039230

The title compound, C₂₀H₃₂B₂N₄, is monoclinic at ambient temperature but triclinic (pseudo-monoclinic) below 150 K. The structures of the two phases, determined at 200 and 120 K, respectively, are very similar, the mol-ecular symmetry being crystallographic C 2 and approximate (local) C 2, respectively. There is significant π conjugation within each N - B - N moiety, but none between them or between the N - B - N and arene moieties.