Project description:The title anilide-imine compound, C(24)H(26)N(2)O, features an intra-molecular N-H⋯N hydrogen bond involving the imine and anilide groups to generate an S(6) ring motif. The mol-ecule displays an E configuration about the imine C=N double bond, with the dihedral angle between the two benzene rings being 86.5°. The packing is stabilized by three different C-H⋯π inter-actions.
Project description:The title Schiff base, C(19)H(24)N(2)O(3), exists in the crystal structure in the phenol-imine tautomeric form with an intra-molecular O-H⋯N hydrogen bond. The planes of the aromatic rings form a dihedral angle of 36.8 (8)°. The crystal packing is characterized by C-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance = 3.478 (4)Å].
Project description:The title compound, C(19)H(24)N(2)O(2), adopts the phenol-imine tautomeric form. An intra-molecular O-H⋯N hydrogen bond results in the formation of a six-membered ring. The aromatic rings are oriented at a dihedral angle of 17.33 (16)°. Inter-molecular C-H⋯π inter-actions occur in the crystal.
Project description:In the title compound, C(17)H(19)NO(3), the dihedral angle between the benzene rings is 68.0 (1)°. The C-O-C-C torsion angle of the atoms joining these rings is 179.7 (2)°. The atoms of the methanol group were refined as disordered over two sets of sites with fixed occupancies of 0.86 and 0.14. The H atoms of the hy-droxy group in the major component are disordered over a further two sets of sites with equal occupancies. This is a necessary arrangement to allow for hydrogen bonding without unrealistic H⋯H contacts. In the crystal, O-H⋯N and O-H⋯O hydrogen bonds connect mol-ecules into chains along [001].
Project description:In the mol-ecule of the title compound, C(23)H(17)N(3)O(2), the methoxy-phenyl ring is oriented at dihedral angles of 13.34 (12) and 88.83 (12)° with respect to the methyl-phenyl and phthalonitrile rings, respectively; the dihedral angle between methyl-phenyl and phthalonitrile rings is 89.67 (10)°. In the crystal structure, weak inter-molecular C-H⋯N inter-actions link mol-ecules into chains. A weak C-H⋯π inter-action is also found..
Project description:The title compound, C(15)H(15)NO(3), adopts the enol-imine tautomeric form. The two rings are twisted with respect to each other, making a dihedral angle of 44.08 (5)°. The 3-methoxy-2-[(E)-(4-methoxyphenyl)-iminomethyl]phenol unit is almost planar, the largest deviation from the mean plane being 0.047 (2) Å. Such a planar conformation might be related to the occurrence of an intra-molecular O-H⋯N hydrogen bond. In the crystal, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into sheets parallel to (010). These sheets are inter-connected by weak C-H⋯π inter-actions.
Project description:In the title compound, C16H17NO4, the dihedral angle between benzene rings is 72.7 (2)°. The meth-oxy groups are rotated by 2.4 (2) and -4.9 (2) (benzil-idene moiety) and by 5.6 (3)° (aniline moiety) relative to the adjacent benzene ring. In the crystal, the mol-ecules are linked into chains along [101] through C-H⋯O and O-H⋯N hydrogen bonds.
Project description:Mol-ecules of the title compound, C(11)H(17)O(4)P, are linked into chiral helical chains along the crystallographic b axis via O-H⋯O hydrogen bonds between the hydr-oxy group and an O atom of the phospho-nate group. One ethyl group is disordered over two positions; the site occupancy factors are ca 0.7 and 0.3.
Project description:In the title compound, C(17)H(17)NO(4), the dihedral angle between the two aromatic rings is 59.64 (5)°. The (meth-oxy-imino)-ethanoic acid fragment is nearly perpendicular to the attached benzene ring [dihedral angle = 81.07 (4)°]. In the crystal, pairs of O-H⋯O hydrogen bonds between carb-oxy groups link mol-ecules into inversion dimers. In addition, π-π stacking inter-actions between inversion-related benzene rings are observed [centroid-centroid distance = 3.702 (1) Å].
Project description:The crystal structure of the title compound, C(15)H(14)BrNO(3)·H(2)O, has a trans configuration about the central C=N double bond. An intra-molecular O-H⋯O hydrogen bond occurs in the main mol-ecule. The crystal packing is stabilized by strong O-H⋯O and O-H⋯N hydrogen bonds.