Crystal structure of bis-(mesit-yl)(pyrrol-1-yl)borane

Abstract

In the crystal structure of the title compound, C₂₂H₂₆BN, the B atom acts to reduce the delocalization of the nitro-gen lone-pair electron density into the pyrrole ring, so that the two N-C bonds increase in length to 1.4005 (14) and 1.3981 (14) Å. The N-B bond length is 1.4425 (15) Å, which is longer than a typical N-B bond because the nitro-gen lone pair is not fully available to participate in the bond.

Keywords: N-B bonding; crystal structure; pyrrolo­borane; π delocalization.