D. Revannasiddaiah

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
In the title compound, C18H21N3O2, the dihedral angle between the benzene rings is 68.85 (11)°. In the crystal, the mol-ecules are linked by C-H⋯O and N-H⋯O hydrogen bonds, as well as weak C-H⋯π contacts, forming a three-dimensional supra-molecular architecture.
In the title compound, C(14)H(10)O(2), the tricycle is not planar, being bent with a dihedral angle of 4.7 (1)° between the two benzene rings. In the crystal, π-π inter-actions between the six-membered rings of neighbouring mol-ecules [centroid-centroid distances = 3.580 (3) and 3.605 (3) Å] form stacks propagating along [101].
The asymmetric unit of the title compound, C11H10N4O3, contains two independent mol-ecules in which the benzene rings make dihedral angles of 38.3 (2) and 87.1 (2)° with respect to the triazole rings. In the crystal, the mol-ecules are linked by C-H⋯O hydrogen bonds, forming chains along [021]. Further, weak C-O⋯π [3.865 (5) Å, 83.8 (3)°] and N-O⋯π [3.275(More)
In the title compound, C15H12Cl2N2O, the atoms not making up the chloro-benzene ring are approximately coplanar (r.m.s. deviation = 0.073 Å). The dihedral angle between these 13 atoms and the chloro-benzene ring is 67.37 (10)°. The C=O and Csp (2)-Cl groups are almost eclipsed [Cl-C-C=O = -6.5 (3)°]. In the crystal, C(6) chains linked by C-H⋯O hydrogen(More)
The asymmetric unit of the title compound, C(19)H(19)ClO(4), contains two independent mol-ecules. The dihedral angles between the benzene rings are 63.41 (8) and 61.41 (9)°. Adjacent mol-ecules of different types are inter-connected in pairs through π-π inter-actions between their central benzene rings [centroid-centroid separation = 3.801 (2) Å,(More)
In the title compound, C12H11Cl3N2O4, the dihedral angle between the aromatic ring and the hydrazine (NH-N=C) grouping is 52.2 (3)°. The butanedioate groups exhibit planar conformations. An intra-molecular N-H⋯O hydrogen bond links the N-H group of the hydrazine to one of the meth-oxy groups of the butane-dioate moiety. In the crystal, mol-ecules are linked(More)
In the title compound, C15H12FN3O2, the dihedral angles between the central benzene ring and the pendant benzene and oxa-diazole rings are 45.05 (13) and 15.60 (14)°, respectively. The C atom of the meth-oxy group is roughly coplanar with its attached ring [displacement = 0.178 (4) Å]. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into [010](More)
In the title compound, C17H13ClN2O2, the phenyl and chloro-benzene rings are inclined to the central pyrazole ring at 40.84 (9) and 65.30 (9)°, respectively. In the crystal, pairs of C-H⋯π inter-actions link the mol-ecules into inversion dimers and C-H⋯O hydrogen bonds link these dimers into columns extended in [010]. The crystal packing exhibits short(More)
In the title compound, C18H14N2O, the dihedral angle between the methyl-phenyl ring and the phthalazone ring system (r.m.s. deviation = 0.034 Å) is 53.93 (9)°. In the crystal, mol-ecules are connected by C-H⋯O hydrogen bonds, forming chains along [101]. The chains are linked by π-π inter-actions [centroid-centroid distance 3.6990 (12) Å], forming layers(More)