N,N′-Bis(3-methylphenyl)-N,N′-diphenyl-l,l′-biphenyl-4, 4′ diamine (TPD), C38H32N2, crystallizes in the monoclinic space group P21 with a pseudo-orthogonal lattice, rather than the previously reported orthorhombic space group P2 121i [Kennedy, Smith, Tackley, David, Shankland, Brown & Teat (2002). J. Mater. Chem. 12, 168-172]. The asymmetric unit consists of two independent molecules, A and B, which are arranged along the  direction to form vertical layers of alternately stacked A and B molecules. Molecule A shows a great deal of rotational movement in the four terminal aryl rings, resulting in two disordered tolyl groups split over two sites, while molecule B exhibits an almost cis configuration of the two terminal tolyl groups with respect to these ring planes.
|Original language||English (US)|
|Journal||Acta Crystallographica Section C: Crystal Structure Communications|
|State||Published - Jun 2004|
ASJC Scopus subject areas
- Condensed Matter Physics
- Structural Biology