In the mol-ecular structure of the title compound, C(21)H(15)N(3)O(4), the inter-planar angle between the benzoyl units is 89.7 (1)°. The corresponding angles between the phenyl-hydrazono and the benzoyl groups are 31.4 (3) and 60.8 (2)°, respectively. In the crystal, a strong resonance-assisted intra-molecular hydrogen bond (N-H⋯O) and a weak intra-molecular hydrogen bond (C-H⋯N) strongly affe...

The title compound, C(22)H(19)NO(2), has potential for use as a new nonlinear optical material. Mol-ecules are almost planar. One C atom of the heterocyclic ring system is disordered over two positions; the site occupancy factors are 0.6 and 0.4.

In the title compound, C(15)H(10)FNO(3), the dihedral angle between the isoindoline-1,3-dione and 3-fluoro-4-methyl-phenol groups is 86.88 (8)°. The isoindoline-1,3-dione fragment is almost planar, with an r.m.s. deviation of 0.0154 Å within the group. Inter-molecular C-H⋯O hydrogen bonds generate C(6) chains running parallel to the [010] direction.

The title compound, C23H17FN2O3, crystallizes with two independent mol-ecules in the asymmetric unit. The mol-ecules are connected by pairs of N-H⋯O hydrogen bonds and have slightly different conformations, as indicated by the dihedral angles between the central imidazolidine-2,4-dione ring and its three substituents. In one mol-ecule, these are 60.56 (1) and 82.66 (9)° to the phenyl rings and ...

The title compound, C(24)H(26)O(2)Si(2), has C(2) crystallographic symmetry. The dihedral angle between the aromatic rings is 84.5 (2)°. The acetyl-ene group is slightly non-linear, with angles at the acetyl-ene C atoms of 175.7 (2) and 177.0 (2)°. In the crystal structure, only van de Waals interactions occur.

In the title compound, C(15)H(10)N(2)O(3), the isoindoline ring system is almost planar [maximum deviation = 0.020 (2) Å] and makes a dihedral angle of 1.57 (7)° with the benzene ring. Intra-molecular O-H⋯N and C-H⋯O hydrogen bonds are observed.

In the title compound, C(23)H(18)N(2)O(3), the inter-planar angle between the benzoyl units is 80.51 (6)° while the dihedral angles between the hydrazinyl-idene and benzoyl groups are 43.43 (6) and 54.16 (6)°. In the crystal, a strong resonance-assisted intra-molecular N-H⋯O hydrogen bond is observed. The mol-ecules form an inversion dimer via a pair of weak C-H⋯O hydrogen bonds and a π-π inter...

In the mol-ecule of the title compound, C(14)H(7)Cl(2)NO(3), the phthalimide ring system is virtually planar, with a dihedral angle between the fused five- and six-membered rings of 4.02 (3)°. In the crystal structure, inter-molecular C-H⋯O and O-H⋯O hydrogen bonds and C-Cl⋯O close contacts [Cl⋯O = 3.0123 (13) Å and C-Cl⋯O = 171.14 (7)°] link the mol-ecules, generating R(2) (2)(16), R(4) (2)(19...

The crystal structure of the title compound, C(14)H(6)Cl(2)FNO(2), exhibits C-H⋯π and π-π inter-actions, which generate C(3) chains in the [100] direction. The π-π inter-action occurs between the aromatic rings of isoindoline units, with a centroid-centroid distance of 3.672 Å and an inter-planar separation of 3.528 Å. The isoindoline unit is planar and inclined at an angle of 58.63 (18)° to th...

In the title compound, C(12)H(9)NO(3)S, the isoindoline-1,3-dione group is almost planar, with an r.m.s. deviation of 0.020 Å, whereas the heterocyclic ring approximates to an envelope with the methyl-ene group not adjacent to the S atom in the flap position. A short intra-molecular C-H⋯O contact generates an S(6) ring motif. In the crystal structure, weak aromatic π-π stacking inter-actions oc...