A5071779965- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Metal complexes synthesis and properties
- Crystal structures of chemical compounds
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Molecular Sensors and Ion Detection
- Synthesis and Characterization of Heterocyclic Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Synthesis and biological activity
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Analytical Chemistry and Chromatography
- Organometallic Complex Synthesis and Catalysis
- Organometallic Compounds Synthesis and Characterization
- Enzyme Structure and Function
- Synthesis of Organic Compounds
- Chemical Synthesis and Analysis
- Chemical Thermodynamics and Molecular Structure
- Porphyrin and Phthalocyanine Chemistry
- Molecular spectroscopy and chirality
- Free Radicals and Antioxidants
- Supramolecular Chemistry and Complexes
- Chemical Reaction Mechanisms
- Computational Drug Discovery Methods
Bharathidasan University
2022
Indira Gandhi Centre for Atomic Research
2007-2018
Karunya University
2010-2014
National Tsing Hua University
1998-2002
Universidad Nacional Autónoma de México
1996-1999
University of Madras
1989-1998
Universidad Autónoma de la Ciudad de México
1996
University of Hyderabad
1994-1996
Objectives : The present investigation was aimed to study the antidiabetic and antihyperlipidemic potential of Abelmoschus esculentus peel seed powder (AEPP AESP) in streptozotocin (STZ)-induced diabetic rats. Materials Methods Acute toxicity AEPP AESP studied rats at 2000 mg/kg dose diabetes induced by administration STZ (60 mg/kg, i.p.). After 14 days blood glucose stabilization, received AEPP, AESP, glibenclamide up 28 days. samples were collected on day estimate hemoglobin (Hb),...
Molecules of 1,3,5-tricyanobenzene are networked with C–H ⋯ N hydrogen bonds into a symmetrical hexagonal pattern in the crystal structure 1 : complex formed by compound hexamethylbenzene.
The crystal structure of the 1:1 donor–acceptor complex 3,5-dinitrobenzoic acid and 4-(N,N-dimethylamino)benzoic contains uncommon O–H ⋯ O hydrogen-bonded carboxy homodimers rather than heterodimers found in nine other related complexes. formation these contradicts general principle that networks, strongest proton donor hydrogen bonds to acceptor. This unusual homodimer is obtained because difficulties C–H bond formation, consequent importance π⋯π stacking interactions enhanced stability...
To provide in vitro evidence for antidiabetic activity through potential inhibition of α -glucosidase and -amylase enzymes using the aqueous extracts Abelmoschus esculentus (L.) Moench. (A. esculentus) peel (AAPP) seed (AASP). The okra was dried under shade powdered. powdered were used preparing extract. extract (AAPP AASP) study. AAPP AASP showed appreciable [IC50 = (142.69 ± 0.32) μg/mL (150.47 0.28) μg/mL] [(IC50 (132.63 0.16) (147.23 0.21) inhibitory effect a concentration-dependent...
The reaction of cis-trans-cis-RuCl2(RaaiR′)2 [RaaiR′ = 1-alkyl-2-(arylazo)imidazole, p-R–C6H4–NN–C3H2–NN-1-R′, where R H (a), Me (b), Cl (c) and R′ (1), Et (2) CH2Ph (3)] either with 2,2′-bipyridine (bpy) AgNO3 followed by NaClO4 or [Ag(bpy)2](ClO4) in boiling acetone led to red-brown [Ru(bpy)(RaaiR′)2](ClO4)2. complex may exist three isomeric structures. structure [Ru(bpy)(MeaaiMe)2](ClO4)2 was confirmed X-ray diffraction study suggests that only one isomer is crystallised. Electronic...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT3-(3',5'-Dinitrophenyl)-4-(2',5'-dimethoxyphenyl)cyclobutane-1,2-dicarboxylic Acid: Engineered Topochemical Synthesis and Molecular Supramolecular PropertiesC. V. Krishnamohan Sharma, Kaliyamoorthy Panneerselvam, Liat Shimoni, Henry Katz, H. L. Carrell, Gautam R. DesirajuCite this: Chem. Mater. 1994, 6, 8, 1282–1292Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissue 1 August...
D. S. Reddy, K. Panneerselvam, T. Pilati and G. R. Desiraju, J. Chem. Soc., Commun., 1993, 661 DOI: 10.1039/C39930000661
1-Alkyl-2-(arylazo)imidazoles (p-R-C6H4-N=N-C3H2N2X, abbreviated as RaaiX, R = H(a), CH3(b), Cl(c); X N(1)-CH3 (1), N(1)-CH2-C6H5 (2)) have been reacted with (NH4)2[OsCl6] and OsCl2(RaaiX)2 species isolated in two isomeric forms, blue-violet (3, 5) red-violet (4, 6). IR spectra show x (Os-Cl) modes support a cis-OsCl2 configuration. X-ray diffraction methods were used to determine structures of isomers. In terms the three coordination pairs around Os(II), Cl, N, N (N(imidazole), N) N', N'...
K. Biradha, C. V. Sharma, Panneerselvam, L. Shimoni, H. Carrell, D. E. Zacharias and G. R. Desiraju, J. Chem. Soc., Commun., 1993, 1473 DOI: 10.1039/C39930001473
Mutual recognition of the nitro and dimethylamino substituent groups is possible in organic crystals through formation a cyclic C–H ⋯ O hydrogen bonded dimer with an approximate stabilising energy –2.45 kcal mol–1(1 cal = 4.184 J).
A new difunctionalized tetraaza macrocycle, 1,8-bis(2-hydroxyethyl)-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane, H2L2 has been synthesized in one step by the reaction of ethylene oxide and C-rac-5,5,7,12,12, 14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (L1). The crystal structure [Cu(H2L2)][ClO4]2 1 shows metal ion tetragonally elongated octahedral geometry, co-ordinated oxygen atoms pendant arms trans-axial position. Copper(II) complexes were also characterized from other...
Dinuclear di(µ-alkoxo) bridged [Fe2L12] 1 (L1 = trianion of 1,3-bis(salicylideneamino)propan-2-ol) and [Fe2L22] 2 (L2 1,3-bis(salicylamino)propan-2-ol) di(µ-phenoxo) [Fe2L32] 3 (L3 4-methyl-2,6-bis(salicylideneaminomethyl)phenol) [Fe2L42] 4 (L4 4-methyl-2,6-bis(salicylaminomethyl)phenol) complexes have been synthesized characterized. The crystal structure contains two molecules in the asymmetric unit each molecule has FeN2O4 distorted octahedral co-ordination units. consists a...
Trimethylisocyanurate 2 and 1,3,5-trinitrobenzene 3 form a hexagonal C–H ⋯ O mediated 1:1 complex wherein distinct molecular layers are formed, the symmetry of components being retained in crystal.
The crystal structure of the pyridino crown (2) containing a resorcinol group is reported. Two crystallographically independent molecules compound with considerably different conformations are present in crystal. Both provide potential cavity, but have other steric factors highly unfavourable for complex formation. Also, there no free space lattice accommodation guest molecule. Based on this result, three crowns ring size incorporating two units positions (5a–c) been synthesized, together...
To investigate a potential candidate material for making artificial red blood cells to supplement transfusion, the X-ray structure of porcine haemoglobin at 1.8 Å resolution was determined as part research towards synthesizing human blood. Porcine crystallized by vapor-diffusion method, producing crystals dimensions 0.3–0.5 mm after successive seeding. The belong orthorhombic space group P212121, with unit-cell parameters = 68.10, b 72.27, c 114.85 Å. initial phase molecular-replacement...
Several substituted 2′-hydroxy-4′,6′-dimethylchalcones undergo a solid state Intramolecular Michaeltype addition reaction to yield the corresponding flavanones, at temperatures significantly below melting points of reactants or products. Single crystal X-ray diffraction studies reactant and product phases have been carried out indicate that these reactions most likely proceed in non-topochemical fashion. A similar conclusion is deduced from powder diffraction, differential scanning...