TY - JOUR
T1 - Coumarin-3-carboxylic acid
T2 - a second P2(1)/c modification
AU - Sparkes, Hazel A.
AU - Howard, Judith A. K.
PY - 2007/9
Y1 - 2007/9
N2 - A second polymorph of coumarin-3-carboxylic acid (2-oxo-2H- 1-benzopyran-3-carboxylic acid), C10H6O4, is reported in the P2(1)/c space group. The structure shows intermolecular hydrogen bonding between the carboxyl groups on pairs of molecules related by an inversion centre, as well as a number of C-H center dot center dot center dot O contacts.
AB - A second polymorph of coumarin-3-carboxylic acid (2-oxo-2H- 1-benzopyran-3-carboxylic acid), C10H6O4, is reported in the P2(1)/c space group. The structure shows intermolecular hydrogen bonding between the carboxyl groups on pairs of molecules related by an inversion centre, as well as a number of C-H center dot center dot center dot O contacts.
U2 - 10.1107/S1600536807040834
DO - 10.1107/S1600536807040834
M3 - Article (Academic Journal)
SN - 1600-5368
VL - 63
SP - O3894-U3799
JO - Acta Crystallographica Section E: Structure Reports Online
JF - Acta Crystallographica Section E: Structure Reports Online
ER -