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Chandra,University of Mysore | Raghu K.,University of Mysore | Jeyaseelan S.,St Philomenas College | Umesha K.B.,University of Mysore | Mahendra M.,University of Mysore
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title compound, C13H13NO3, the dihedral angle between the phenyl and isoxazole rings is 43.40 (13)°. The ethoxycarbonyl group is rotated out of the plane of the isoxazole ring by 16.2 (13)°. © Chandra et al. 2013. Source


Chandra,University of Mysore | Srikantamurthy N.,University of Mysore | Vishalakshi G.J.,University of Mysore | Jeyaseelan S.,St Philomenas College | And 2 more authors.
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title compound, C11H9NO3, the phenyl and isoxazole rings form a dihedral angle of 56.64 (8)°. The carboxy group is almost in the same plane as the isoxazole ring with a C - C - C - O torsion angle of -3.3 (2)°. In the crystal, pairs of O - H⋯O hydrogen bonds link the molecules into head-to-head dimers. C - H⋯N hydrogen bonds and π-π stacking interactions between phenyl rings [centroid-centroid distance = 3.9614 (17)Å] link the dimers into a three-dimensional network. © Chandra et al. 2013. Source


Dileep C.S.,University of Mysore | Prashanth T.,University of Mysore | Jeyaseelan S.,St Philomenas College | Khanum S.A.,University of Mysore | Sridhar M.A.,University of Mysore
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the molecule of the title compound, C15H14O 2, the dihedral angle between the benzene and phenyl rings is 61.27(8)°. In the crystal, O - H⋯O and weak C - H⋯O hydrogen bonds link the molecules into chains extending along the c-axis direction. Source


Chandra,University of Mysore | Srikantamurthy N.,University of Mysore | Umesha K.B.,University of Mysore | Jeyaseelan S.,St Philomenas College | Mahendra M.,University of Mysore
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the molecule of the title compound, C16H16N 4O, the pyrazole ring makes dihedral angles of 8.52 (13) and 9.26 (12)°with the phenyl rings. The dihedral angle between the benzene rings is 1.86 (13)°. In the crystal, molecules are linked into centrosymmetric dimers via pairs of O - H⋯N hydrogen bonds. Weak N - H⋯N interactions connect the dimers into a chain along the [100] direction. The pyrazole ring adopts a highly flattened envelope conformation. Source


Fun H.-K.,Universiti Sains Malaysia | Yeap C.S.,Universiti Sains Malaysia | Prasad D.J.,Mangalore University | Castelino P.A.,St Philomenas College | Anitha V.V.,Mangalore University
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

In the title compound, C15H17N3OS, the dihedral angle between the statistically planar imidazo[2,1-b][1,3,4]thiadiazole fusedring system (r.m.s. deviation = 0.002 Å) and the methyoxbenzene ring is 4.52 (6)°. In the crystal, molecules are arranged into columns and stacked down the a axis. The crystal structure is stabilized by weak C -H⋯π and π-π interactions [centroidcentroid separations = 3.6053 (8) and 3.7088 (7) Å]. Source

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