Accurate molecular structures and hydrogen bonding in two polymorphs of ortho-acetamidobenzamide by single-crystal neutron diffraction.
The structures of both known forms of the polymorphic material ortho-acetamidobenzamide, C(9)H(10)N(2)O(2), have been determined by low-temperature neutron single-crystal diffraction. Neutron diffraction allows the full description of the H-atom positions in this molecular material, which is vital in benchmarking related crystal-structure predictions. Significant conformational differences are indicated by a number of the torsion angles involving H atoms when compared with previous X-ray studies. A comprehensive description of the hydrogen-bonding scheme in both polymorphs is given.
Leech
Charlotte K
CK
ISIS Facility, CCLRC Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, England. c.k.leech@rl.ac.uk
Barnett
Sarah A
SA
Shankland
Kenneth
K
Gutmann
Matthias
M
Wilson
Chick C
CC