1-Phenyl-3H-2,3-benzodiazepin-4(5H)-one.
The seven-membered ring in the title compound, C(15)H(12)N(2)O, adopts a boat-shaped conformation (with the methyl-ene C atom as the prow and the double-bond C=N pair of atoms as the stern). In the crystal, adjacent mol-ecules are linked by an N-H⋯O hydrogen bond to generate helical chains running along the a axis of the ortho-rhom-bic unit cell.
Ballo
B
Daouda
Frédéric
F
Bihel
Mouhamadou Lamine
ML
Doumbia
El Mokhtar
el M
Essassi
Seik Weng
SW
Ng