Characterization Of Wy 14,643 And Its Complex With Aldose Reductase, Michael R. Sawaya, Malkhey Verma, Vaishnavi Balendiran, Nigam P. Rath, Duilio Cascio, Ganesaratnam K. Balendiran
Nov 2016
Characterization Of Wy 14,643 And Its Complex With Aldose Reductase, Michael R. Sawaya, Malkhey Verma, Vaishnavi Balendiran, Nigam P. Rath, Duilio Cascio, Ganesaratnam K. Balendiran
Nigam Rath
The peroxisome proliferator, WY 14,643 exhibits a pure non-competitive inhibition pattern in the aldehyde reduction and in alcohol oxidation activities of human Aldose reductase (hAR). Fluorescence emission measurements of the equilibrium dissociation constants, Kd, of oxidized (hAR•NADP+) and reduced (hAR•NADPH) holoenzyme complexes display a 2-fold difference between them. Kd values for the dissociation of WY 14,643 from the oxidized (hAR•NADP+•WY 14,643) and reduced (hAR•NADPH•WY 14,643) ternary complexes are comparable to each other. The ternary complex structure of hAR•NADP+•WY 14,643 reveals the first structural evidence of a fibrate class drug binding to hAR. These observations demonstrate how fibrate molecules such as …
Dicarbonyldichloridobis(Trimethylphosphane)Iron(Ii)–Carbonyldichloridotris(Trimethylphosphane)Iron(Ii)–Tetrahydrofuran (1/1/2), Nigam P. Rath, Meghan Stouffer, Matthew K. Janssen, John R. Bleeke
Apr 2011
Dicarbonyldichloridobis(Trimethylphosphane)Iron(Ii)–Carbonyldichloridotris(Trimethylphosphane)Iron(Ii)–Tetrahydrofuran (1/1/2), Nigam P. Rath, Meghan Stouffer, Matthew K. Janssen, John R. Bleeke
Nigam Rath
The asymmetric unit of the title crystal, [FeCl2(C3H9P)3(CO)]·[FeCl2(C3H9P)2(CO)2]·2C4H8O, contains half molecules of the two closely related FeII complexes lying on mirror planes and a tetrahydrofuran solvent molecule, one C atom of which is disordered over two sets of sites with site occupancy factors 0.633 (9) and 0.367 (9). In both FeII complex molecules, a distorted octahedral coordination geometry has been observed around the Fe atoms. Weak intermolecular C-H...O interactions are observed in the crystal structure.
(1e,3e)-1,4-Bis(4-Methoxyphenyl)Buta1,3-Diene, Gopinathan Narayan, Nigam P. Rath, Suresh Das
Oct 2010
(1e,3e)-1,4-Bis(4-Methoxyphenyl)Buta1,3-Diene, Gopinathan Narayan, Nigam P. Rath, Suresh Das
Nigam Rath
The title compound, C18H18O2, which exhibits blue emission in the solid state, is an intermediate in the preparation of liquid crystals and polymers. The molecule is located on an inversion centre. In the crystal, molecules are arranged in a herringbone motif.
2,2′,5,5′-TetraChloroBenzidine, Onome Ugono, Marcel Douglas, Nigam P. Rath, Alicia M. Beatty
Sep 2010
2,2′,5,5′-TetraChloroBenzidine, Onome Ugono, Marcel Douglas, Nigam P. Rath, Alicia M. Beatty
Nigam Rath
In the crystal structure of the title compound, C12H8Cl4N2, molecules lie on crystallographic twofold axes at the centre of the C-C bonds linking the benzene rings, such that the asymmetric unit consists of a half-molecule. The individual molecules participate in intermolecular N-H...N, N-H...Cl, C-H...Cl and Cl...Cl [3.4503 (3) Å] interactions.
Catena-Poly[[(Pyridine-Κn)Copper(Ii)]-Μ3-Pyridine-2,6-Dicarboxylato-Κ3o2:O2′,N,O6:O6′], Manoj Trivedi, Daya Shankar Pandey, Nigam P. Rath
Mar 2009
Catena-Poly[[(Pyridine-Κn)Copper(Ii)]-Μ3-Pyridine-2,6-Dicarboxylato-Κ3o2:O2′,N,O6:O6′], Manoj Trivedi, Daya Shankar Pandey, Nigam P. Rath
Nigam Rath
In the title compound, [Cu(C7H3NO4)(C5H5N)]n, the CuII atom is in a slightly distorted octahedral coordination environment. Each CuII atom is bound to two N atoms and one O atom of the pyridinedicarboxylate (PDA) ligand in a tridentate manner, one N atom of the pyridine molecule and two bridging carboxylate O atoms of adjacent PDA ligands, leading to a linear one-dimensional chain running along the c axis. These chains are further assembled via weak C-H...O and [pi]-[pi] interactions into a three-dimensional supramolecular network structure. The centroid-centroid distance between the [pi]-[pi] interacting pyridine rings is 3.9104 (13) Å. The two N atoms …
Dioxidobis(2-Oxo-1,2-Dihydropyridin-3-Olato)Molybdenum(Vi), Manoj Trivedi, Daya Shankar Pandey, Nigam P. Rath
Apr 2008
Dioxidobis(2-Oxo-1,2-Dihydropyridin-3-Olato)Molybdenum(Vi), Manoj Trivedi, Daya Shankar Pandey, Nigam P. Rath
Nigam Rath
In the title compound, [Mo(C5H4NO2)2O2], the MoVI atom exhibits a distorted octahedral coordination geometry formed by two terminal oxo ligands and two monoanionic O,O-bidentate pyridinone ligands. The two terminal oxo ligands lie in a cis arrangement, the ketonic O atoms of the pyridinone ligands are coordinated trans to the oxo ligands and the deprotonated hydroxyl O atoms are located trans to each other. The crystal structure contains intermolecular N-H...O hydrogen bonds, C-H...O contacts and face-to-face [pi]-[pi] stacking interactions with an interplanar separation of 3.25 (1) Å.
Diethyl 2-[(4-NitroPhenYl)(4-Phenyl-1,2,3-Selenadiazol-5-Yl)MethYl]Malonate, A. Marx, S. Saravanan, S. Muthusubramanian, V. Manivannan, Nigam P. Rath
Apr 2008
Diethyl 2-[(4-NitroPhenYl)(4-Phenyl-1,2,3-Selenadiazol-5-Yl)MethYl]Malonate, A. Marx, S. Saravanan, S. Muthusubramanian, V. Manivannan, Nigam P. Rath
Nigam Rath
In the title compound, C22H21N3O6Se, the heterocyclic ring makes dihedral angles of 50.03 (11) and 67.75 (11)°, respectively, with the benzene and phenyl rings. The terminal C atoms of the ester groups are disordered over two positions: the site occupancies for the C atoms are 0.62 (3)/0.38 (3) and 0.48 (3)/0.52 (3). In the crystal structure, weak intra- and intermolecular C-H...O interactions are observed.
4-(4-Chlorophenyl)-5-[1-(4-Chlorophenyl)-2-Methyl-2-Nitropropyl]-1,2,3-Selenadiazole, A. Marx, S. Saravanan, S. Muthusubramanian, V. Manivannan, Nigam P. Rath
Feb 2008
4-(4-Chlorophenyl)-5-[1-(4-Chlorophenyl)-2-Methyl-2-Nitropropyl]-1,2,3-Selenadiazole, A. Marx, S. Saravanan, S. Muthusubramanian, V. Manivannan, Nigam P. Rath
Nigam Rath
In the title compound, C18H15Cl2N3O2Se, the selenadiazole ring makes dihedral angles of 49.87 (3) and 55.70 (3)° with the two benzene rings. The dihedral angle between the two benzene rings is 11.90 (5)°. In the crystal structure, intramolecular C-H...O and C-H...Se interactions and intermolecular C-H...O, C-H...Cl and C-H...N interactions are observed.
