Sharmila P, Jagadeesan G, Raju Rajesh, Raghavachary Raghunathan, Aravindhan S
Department of Physics, Presidency College, Chennai 600 005, India.
Acta Crystallogr Sect E Struct Rep Online. 2013 Sep 21;69(Pt 10):o1570. doi: 10.1107/S1600536813024963. eCollection 2013.
In the title compound, C30H29BrN2O5, the β-lactam ring is essentially planar, with the O atom displaced from this plane by 0.856 (9) Å, and forming dihedral angles of 24.35 (13) and 89.42 (14)° with the planes of the benzene substituent groups on this ring. The tetra-hydro-pyran ring adopts an envelope conformation with the C atom bearing the β-lactam ring as the flap. In the crystal, weak C-H⋯O hydrogen bonds with carboxyl and tetra-hydro-pyran O-atom acceptors give rise to a chain structure extending along the b-axis direction.
在标题化合物C₃₀H₂₉BrN₂O₅中，β-内酰胺环基本呈平面状，其中O原子偏离该平面0.856(9) Å，并与该环上苯取代基的平面形成24.35(13)°和89.42(14)°的二面角。四氢吡喃环呈信封构象，带有β-内酰胺环的C原子为翻盖。在晶体中，与羧基和四氢吡喃O原子受体形成的弱C-H⋯O氢键产生了沿b轴方向延伸的链状结构。
