A monoclinic polymorph of N,N'-bis(2,6-diisopropylphenyl)formamidine

Abstract

A new polymorph of N,N'-bis(2,6-diisopropylphenyl)-formamidine, C[subscript 25]H[subscript 36]N[subscript 2], is reported, which is different from the previously reported orthorhombic structure. The molecule crystallizes in the E–anti configuration, with tautomeric disorder of the N-bonded H atoms and no clear distinction between imine and amine functionalities. The molecules form hydrogen-bonded dimers with intermolecular N...N distances shorter than those in the orthorhombic polymorph.