Structure of 8-chloro-1-[(dimethylamino)methyl]-6-phenyl-4H-imidazo[1,2-a][1,4]benzodiazepine, C20H19ClN4

Abstract

Abstract. Mr=350.8, triclinic, P1, a=9.036(4), b=9.888(3), c=11.035(7) A, a=94.62(4), t= 100.40 (5), ~,= 106.75 (3)% U= 919.4 A 3, Z= 2, D x = 1.267 Mg m -3, ~t(Mo Ko., 2 = 0.71069 A) = 0.18mm -~, F(000)=368, room temperature, R--0.042 for 1361 observed reflections. The sevenmembered ring adopts a boat conformation and the angle between the phenyl ring and the fused benzene moiety is 66.5 (5) ° . Bond lengths and angles agree with those found in other 1,4-benzodiazepines. The benzo and imidazo rings are effectively planar.