TY  - JOUR
A1  - Dahmani, Siham
A1  - Rodi, Youssef Kandri
A1  - Luis, Santiago V.
A1  - Bolte, Michael
A1  - El Ammari, Lahcen
T1  - 3-Allyl-6-bromo-1H-imidazo[4,5-b]pyridin-2(3H)-one
T2  - Acta crystallographica / Section E, Structure reports online
N2  - In the title compound, C15H14N2O4, (I), the mol­ecule lies on a twofold rotation axis which passes through the central C atom of the aliphatic chain, giving one half-mol­ecule per asymmetric unit. The structure is a monoclinic polymorph of the triclinic structure previously reported [Brito, Vallejos, Bolte & López-Rodríguez (2010). Acta Cryst. E66, o792], (II). The most obvious difference between them is the O/C/C/C—O/C/C/C torsion angle [58.2 (7)° in (I) and 173.4 (3)/70.2 (3)° in (II) for GG and TG conformations, respectively]. Another important difference is observed in the dihedral angle between the planes of the aromatic rings [86.49 (7)° for (I) and 76.4 (3)° for (II)]. The crystal structure features a weak π–π inter­action [centroid–centroid distance = 4.1397 (10)Å]; this latter kind of inter­action is not evident in the triclinic polymorph.
Y1  - 2011
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/25276
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-252765
SN  - 1600-5368
VL  - 67
IS  - o1998
PB  - Munksgaard
CY  - Copenhagen
ER  -