A triclinic polymorph of benzanilide: disordered molecules form hydrogen-bonded chains.
In the P-1 polymorph of benzanilide or N-phenylbenzamide, C(13)H(11)NO, the molecules are linked into simple C(4) chains by N-H...O hydrogen bonds. The molecules exhibit orientational disorder, but the donor and acceptor in a given hydrogen bond may occur, independently, in either the major or the minor orientation, such that all four possible N-H.O combinations have very similar geometries. The structure of this P-1 polymorph can be related to that of a previously reported C2/c polymorph.
Bowes
Katharine F
KF
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, Scotland.
Glidewell
Christopher
C
Low
John N
JN
Skakle
Janet M S
JM
Wardell
James L
JL