ABSTRACT
The title compound, C16H11N2OF, is a member of the azo dye family. The dihedral angle subtended by the benzene ring and the naphthalene ring system measures 18.75â (7)°, indicating that the compound is not perfectly planar. An intra-molecular N-Hâ¯O hydrogen bond occurs between the imino and carbonyl groups. In the crystal, the mol-ecules are linked into inversion dimers by C-Hâ¯O inter-actions. Aromatic π-π stacking between the naphthalene ring systems lead to the formation of chains along [001]. A Hirshfeld surface analysis was undertaken to investigate and qu-antify the inter-molecular inter-actions. In addition, energy frameworks were used to examine the cooperative effect of these inter-molecular inter-actions across the crystal, showing dispersion energy to be the most influential factor in the crystal organization of the compound.
ABSTRACT
In the title compound, C16H12N2O, the dihedral angle between the planes of the benzene ring and naphthalenone ring system is 1.89â (8)°; an intra-molecular N-Hâ¯O hydrogen bond occurs between the imino group and the carbonyl group. In the crystal, mol-ecules are linked by weak C-Hâ¯π inter-actions into supra-molecular chains propagating along the [01-1] direction.
ABSTRACT
The non-H atoms of the title compound, C20H20N2O2, is located on a mirror plane except two methyl groups of the tert-butyl group. Intra-molecular N-Hâ¯O hydrogen bonds exist between the hy-droxy and diazenyl groups. In the crystal, mol-ecules are linked by weak C-Hâ¯O hydrogen bonds into supra-molecular chains running along the a-axis direction.
ABSTRACT
In the title zwitterion, C17H12N2O2, the dihedral angle between the benzene ring and naphthalene ring system is 11.76â (7)° and an intra-molecular N-Hâ¯O hydrogen bond exists. In the crystal, molecules are linked via pairs of C-Hâ¯O hydrogen bonds, forming inversion dimers.
ABSTRACT
The title zwitterion,, C16H11ClN2O, is approximately planar, the dihedral angle between the benzene ring and naphthalene ring system is 1.55â (13)°; an intra-molecular N-Hâ¯O hydrogen bond stabilizes the planar conformation. In the crystal, π-π stacking between the benzene ring and the naphthalene ring system of adjacent mol-ecules links the mol-ecules into supra-molecular chains running along the b axis, the centroid-centroid distance being 3.765â (2)â Å.