In the title molecule, C35H22BrNO2, the four-membered ring of the beta-lactam unit is nearly planar [maximum deviation = 0.003 (3) angstrom] and makes dihedral angles of 87.07 (15), 59.80 (16) and 20.81 (19)degrees, ...

The stabilized conformation of the title compound, C36H25NO3, 4-(9-anthryl)-1-(2-methoxyphenyl)-spiro[azetidin-3,9'-xanthen]-2-one, may be compared with that of the isomeric compound 4-(9-anthryl)-1-(4-methoxyphenyl)spir ...

The asymmetric unit of the title compound, C13H10N2O3, contains four independent molecules (I, II, III and IV). Molecule IV shows whole-molecule disorder over two sets of adjacent sites in a 0.669 (10):0.331 (10) ratio. ...

The beta-lactam ring of the title compound, C35H23NO2, is nearly planar with a maximum deviation of 0.003 (3) angstrom from the mean plane. It makes dihedral angles of 17.4 (2), 85.22 (17) and 65.39 (16)degrees, respectively, ...

In the title compound, C39H25NO2 center dot 0.5C(6)H(14), the beta-lactam ring is nearly planar [maximum deviation of 0.012 (2) angstrom from the mean plane] and makes dihedral angles of 36.41 (13), 88.87 (13) and 54.16 ...

In the title molecule, C36H25NO3, the beta-lactam ring is essentially planar, with a dihedral angle of 3.3 (2)degrees between the two separate three-atom N/C/C planes. The beta-lactam ring makes dihedral angles of 28.45 ...

The title compound, C(37)H(27)NO(4), crystallizes with two molecules in the asymmetric unit. The beta-lactam ring of each molecule is very nearly planar, with maximum deviations of 0.001 (2) and 0.017 (2) angstrom in the ...

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