AVK College for Women

Hassan, India

AVK College for Women

Hassan, India

Time filter

Source Type

Al-Eryani W.F.A.,University of Mysore | Kumari J.S.,AVK College for Women | Arunkashi H.K.,University of Mysore | Vepuri S.B.,Gandhi Institute of Technology and Management | Devarajegowda H.C.,University of Mysore
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

In the title compound, C20H15F6N 3O2, the quinoline ring system is almost coplanar with the benzene ring; the dihedral angle between the two planes is 2.31 (8)°. The crystal structure displays an inter-molecular C-H⋯F hydrogen bond. In addition, a weak π-π inter-action is observed between the unfused benzene ring and the benzene ring of quinoline, with a centroid-centroid distance of 3.586 (1) Å.


Sreenivasa S.,Tumkur University | Nanjundaswamy M.S.,AVK College for Women | Sudha A.G.,Tumkur University | Pampa K.J.,University of Mysore | And 2 more authors.
Acta Crystallographica Section E: Structure Reports Online | Year: 2014

In the title compound, C14H12N2O5S, the dihedral angle between the aromatic rings is 86.29(1)° and the conformation between the C=O bond of the amide group and the meta-NO2 group is syn. The C - S - N - C torsion angle is -65.87(19)° and the molecule has an L-shaped conformation. In the crystal, the molecules are connected into inversion dimers through pairs of N - HO hydrogen bonds and C - HO interactions forming R 22(8) and R 2 2(14) loops, respectively. The dimers are connected by further C - HO interactions, thereby forming (100) sheets. © Sreenivasa et al. 2014.


Sreenivasa S.,Tumkur University | Nanjundaswamy M.S.,AVK College for Women | Madankumar S.,University of Mysore | Lokanath N.K.,University of Mysore | And 2 more authors.
Acta Crystallographica Section E: Structure Reports Online | Year: 2014

In the title compound, C14H13NO4S, the dihedral angle between the aromatic rings is 69.81(1)°; the dihedral angle between the planes defined by the S - N - C=O segment of the central chain and the sulfonyl benzene ring is 74.91(1)°. In the crystal, the molecules are linked by weak N - HO hydrogen bonds into C(4) chains running along [100]. The molecules in adjacent chains are linked by weak C - HO interactions, generating R 22 (16) dimeric pairs. Weak C - Hπ interactions connect the double chains into (001) sheets. © Sreenivasa et al. 2014.


Sreenivasa S.,Tumkur University | Nanjundaswamy M.S.,AVK College for Women | Manojkumar K.E.,Tumkur University | Madankumar S.,University of Mysore | And 2 more authors.
Acta Crystallographica Section E: Structure Reports Online | Year: 2014

The title compound, C8H6FNO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.019Å) and the conformation across the C=C bond is trans. The C and H atoms of the side chain are disordered over two sets of sites in a 0.56(3):0.44(3) ratio. In the crystal, molecules are linked by C - HO interactions, thus forming C(5) chains propagating in [001]. © Sreenivasa et al. 2014.


PubMed | Tumkur University, University of Mysore and AVK College for Women
Type: Journal Article | Journal: Acta crystallographica. Section E, Structure reports online | Year: 2014

The title compound, C8H6FNO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.019) and the conformation across the C=C bond is trans. The C and H atoms of the side chain are disordered over two sets of sites in a 0.56(3):0.44(3) ratio. In the crystal, mol-ecules are linked by C-HO inter-actions, thus forming C(5) chains propagating in [001].


PubMed | Tumkur University, University of Mysore and AVK College for Women
Type: Journal Article | Journal: Acta crystallographica. Section E, Structure reports online | Year: 2014

In the title compound, C14H12N2O5S, the dihedral angle between the aromatic rings is 86.29(1) and the conformation between the C=O bond of the amide group and the meta-NO2 group is syn. The C-S-N-C torsion angle is -65.87(19) and the mol-ecule has an L-shaped conformation. In the crystal, the mol-ecules are connected into inversion dimers through pairs of N-HO hydrogen bonds and C-HO inter-actions forming R 2 (2)(8) and R 2 (2)(14) loops, respectively. The dimers are connected by further C-HO inter-actions, thereby forming (100) sheets.


PubMed | Tumkur University, University of Mysore and AVK College for Women
Type: Journal Article | Journal: Acta crystallographica. Section E, Structure reports online | Year: 2014

In the title compound, C14H13NO4S, the dihedral angle between the aromatic rings is 69.81(1); the dihedral angle between the planes defined by the S-N-C=O segment of the central chain and the sulfonyl benzene ring is 74.91(1). In the crystal, the mol-ecules are linked by weak N-HO hydrogen bonds into C(4) chains running along [100]. The mol-ecules in adjacent chains are linked by weak C-HO inter-actions, generating R 2 (2) (16) dimeric pairs. Weak C-H inter-actions connect the double chains into (001) sheets.


Vinduvahini M.,Sri D Devaraja Urs Government First Grade College | Jeyaseelan S.,University of Mysore | Shylajakumari J.,AVK College for Women | Revanasiddappa H.D.,University of Mysore | Devaru V.B.,P.A. College
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C 23H 26FN 3O 6S, the two terminal aromatic rings form a dihedral angle of 49.26(12)°. The cyclohexane ring adopts a chair conformation and the fivemembered ring is essentially planar, with a maximum deviation from planarity of 0.0456(19) Å. The dihedral angles between the five-membered ring and the methoxybenzene and fluorobenzene rings are 33.56(11) and 81.94(12)°, respectively. The crystal structure displays N-H···O hydrogen bonds as well as weak intermolecular C-H···O interactions.


Ambekar S.P.,Karnatak University | Devarajegowda H.C.,University of Mysore | Shylajakumari J.,AVK College for Women | Kumar K.M.,Karnatak University | Kotresh O.,Karnatak University
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title compound, C15H11BrO3, the dihedral angle between the benzene rings is 72.59 (6)°. In the crystal, pairs of C - H⋯π contacts form inversion dimers. Additional C - H⋯O hydrogen bonds generate R 2 1(6) ring motifs and stack these dimers along the b axis. Short intermolecular Br⋯O contacts of 3.254 (3) Å are also observed and link the stacks into a three-dimensional network. © 2013 Ambekar et al.


Lingaraju D.P.,AVK college for women | Sudarshana M.S.,University of Mysore
International Journal of Pharma and Bio Sciences | Year: 2014

The purpose of present work is to study antimicrobial activity and medicinally active principles present in different solvent extracts obtained from roots of Heracleum rigens. The active principles were isolated by Soxhlet extractor using petroleum ether, chloroform, ethyl acetate and methanol and identified by preliminary phytochemical test. The results of analyses of each extract confirm the active substances were alkaloids, sterols, triterpenes, glycosides and flavonoids. The antimicrobial tests of isolated substances were performed against bacteria- Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomons aeruginosa, and a fungus Candida albicans. The results revealed that ethyl acetate extract has significant antimicrobial activities. Heracleum rigens revealed the highest antibacterial activity at a minimum inhibitory concentration (6.25μg/ml) against P.aeruginosa and highest antifungal activity at a MIC (1.56μg/ml) against C.albicans. The results provide justification for the use of the H.rigens in folk medicine to treat various infectious diseases.

Loading AVK College for Women collaborators
Loading AVK College for Women collaborators