Effect of MPA capping on the structural, optical and thermal properties of Zn0.96Ni0.04S nanoparticles R. Mohan, C. Rakkappan, N. Punitha, K. Jayamoorthy, G. Venkatesh Inorganic and Nano Metal Chemistry, 2023 Chemical precipitation method was used to prepare of Zn0.96Ni0.04S nanoparticles. XRD showed that ZnS:Ni2+ nanoparticles crystallized in zinc blend structure with preferential orientation by the side of (111) plane. Scanning electron microscope (SEM) images of Zn0.96Ni0.04S nanoparticles portray substantial agglomeration of particles with potholed spherical morphology and energy dispersive spectrum (EDAX) measurements incorrigible that the presence of Ni in ZnS lattice. High resolution tunneling electron microscope (HRTEM) divulge that Zn0.96Ni0.04S particle size were ranges from ∼ 15 to 20 nm with good crystalline character and SAED pattern were good concurrence with X-ray diffractive (XRD) results. UV–Vis spectroscopy was engage to evaluate optical band gap of Zn0.96Ni0.04S nanoparticle, and which further disclose that when 3-mercaptopropionic (MPA) concentration increase guide the absorption edge shifted to lower wavelength. Peak at 411 °C with matching weight loss of 39.2 wt% in DTA reveals that Ni2+ ions are get away from the ZnS matrix.
Inclusion complexation of 4,4′-dihydroxybenzophenone and 4-hydroxybenzophenone with α- And β-cyclodextrins N. Rajendiran, G. Venkatesh Supramolecular Chemistry, 2014 The inclusion complexation behaviours of 4,4′-dihydroxybenzophenone (DHBP) and 4-hydroxybenzophenone (HBP) with α-cyclodextrin (α-CD) and β-cyclodextrin (β-CD) were investigated using UV–visible fluorescence, time-resolved fluorescence, molecular modelling, scanning electron microscopy (SEM), FTIR, differential scanning calorimeter, X-ray diffraction, 1H NMR and molecular modelling techniques. In both molecules, biexponential decay was observed in water, whereas triexponential decay was observed in the CD medium. The DSC thermogram of the DHBP/α-CD and DHBP/β-CD inclusion complex nanomaterials shows the endothermic peak at 60.8, 101.9, 119.6 and 112.8°C. The upfield chemical shift observed for HBP protons reveal that the phenyl ring (without hydroxyl substitution) entered the CD cavity and the hydroxyl group of HBP is exposed outside the CD cavity. The SEM image of DHBP appears as needle-shaped crystals on the micrometre scale, whereas the irregular bar shape was observed for HBP. Transmission electron microscopy images show that both guest molecules formed nano vesicles with α-CD and formed nano rods with β-CD.
Dual fluorescence of omeprazole: Effect of solvents and pH N. Rajendiran, G. Venkatesh, R.K. Sankaranarayanan Physics and Chemistry of Liquids, 2014 Absorption, steady state fluorescence and time-resolved fluorescence spectra of omeprazole (OMP) have been studied in solvents of different polarity and pH. With an increase in the polarity of the solvents, blue shift is observed in the longer wavelength whereas red shift is noticed in the shorter wavelength band. The dual emission observed in non-polar solvents suggests that the energy of the twisted intramolecular charge transfer (TICT) state is lower than that of the locally excited (LE) state. The normal Stokes-shifted band originates from the LE state, and the large Stokes-shifted band is due to the emission from a TICT state. The Stokes shift of OMP is correlated with various solvent polarity scales like ET(30) and f (D,n).
Intramolecular charge transfer effects on 3,5-diaminobenzoic acid - Effect of β-cyclodextrin, pH and solvents Journal of the Indian Chemical Society, 2014
Excimer formation in inclusion complexes of antihypertensive drugs with HP-α- and HP-β-cyclodextrins Indian Journal of Chemistry Section A Inorganic Physical Theoretical and Analytical Chemistry, 2013
Inclusion complex formation of omeprazole with hydroxypropyl cyclodextrins Journal of the Indian Chemical Society, 2013
Azonium-ammonium tautomerism and inclusion complexation of 4-amino-2', 3-dimethylazobenzene Indian Journal of Chemistry Section A Inorganic Physical Theoretical and Analytical Chemistry, 2010
Supramolecular self-assembly and theoretical studies of α-cyclodextrin with 3, 5-dihydroxybenzoic acid host: guest inclusion complexes RK Sankaranarayanan, K Saravanakumar, P Mahesh, J Chatterjee, ... Journal of Molecular Structure 1347, 143270 , 2025 2025
Synthesis and Characterisation of Sudan Red-G/Cyclodextrin Doped ZnO Nanocrystals P Ramasamy, A Mani, B Sneha, E Nivetha, AAM Prabhu, G Venkatesh, ... American Journal of Physical Chemistry 14 (2), 23-32 , 2025 2025 Citations: 1
Synthesis and Characterisation of Methyl Violet/Cyclodextrin Doped ZnO Nanocrystals P Ramasamy, A Mani, B Sneha, E Nivetha, AAM Prabhu, G Venkatesh, ... Colloid and Surface Science 7 (1), 19-30 , 2025 2025 Citations: 2
PICT Effects and Anticancer Potential on Rosaniline and Spectral Characterisation of Rosaniline/Cyclodextrin Covered ZnO/Nanocrystals P Ramasamy, A Mani, AAM Prabhu, G Venkatesh, P Senthilraja, ... International Research Journal of Pure and Applied Chemistry 26 (3), 107-121 , 2025 2025 Citations: 2
Azo-Imino Tautomerism in Sudan Red 7B/Cyclodextrin Coated ZnO Nanocomposites: Evidence by Spectral and Microscopic Perspectives P Ramasamy, N Rajendiran, A Mani, G Venkatesh, AAM Prabhu Science 13 (3), 65-75 , 2025 2025 Citations: 2
Synthesis and characterisation of Ag-Co-venlafaxine-cyclodextrin nanorods A Mani, G Venkatesh, P Senthilraja, N Rajendiran European Journal of Advanced Chemistry Research 5 (1), 9-16 , 2024 2024 Citations: 14
Effect of MPA capping on the structural, optical and thermal properties of Zn0.96Ni0.04S nanoparticles KJGV R. Mohan, C. Rakkappan, N. Punitha Inorganic and Nano-Metal Chemistry , 2023 2023
Stepwise pesudopolyrotaxane nanostructure formation from supramolecular self-assembly by inclusion complexation of fast violet B with α-and β-cyclodextrins RK Sankaranarayanan, G Venkatesh, J Ethiraj, M Pattabiraman, ... Journal of Molecular Structure 1262, 133080 , 2022 2022 Citations: 10
Micrometer size rod formed by secondary self assembly of omeprazole with α-and β-cyclodextrins N Rajendiran, G Venkatesh Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 137, 832-840 , 2015 2015 Citations: 10
Inclusion complexation of 4, 4′-dihydroxybenzophenone and 4-hydroxybenzophenone with α-and β-cyclodextrins N Rajendiran, G Venkatesh Supramolecular Chemistry 26 (10-12), 783-795 , 2014 2014 Citations: 9
Dual fluorescence of omeprazole: effect of solvents and pH N Rajendiran, G Venkatesh, RK Sankaranarayanan Physics and Chemistry of Liquids 52 (6), 738-750 , 2014 2014 Citations: 11
Effect of α-and β-cyclodextrins on S-triazine derivatives: spectral and molecular modelling studies M Shanmugam, J Thulasidhasan, G Venkatesh, V Chidambaranathan, ... Physics and Chemistry of Liquids 52 (5), 583-600 , 2014 2014 Citations: 10
Encapsulation of thiazolyazoresorcinol and thiazolyazocresol dyes with α-and β-cyclodextrin cavities: Spectral and molecular modeling studies N Rajendiran, G Venkatesh, RK Sankaranarayanan Journal of Molecular Structure 1072, 242-252 , 2014 2014 Citations: 16
Supramolecular aggregates formed by sulfadiazine and sulfisomidine inclusion complexes with α-and β-cyclodextrins N Rajendiran, G Venkatesh, J Saravanan Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 129, 157-162 , 2014 2014 Citations: 25
Excimer Emission in Inclusion Complexes of Dibenzofuran and 5-Dibenzosuberenone with α-and β-Cyclodextrins N Rajendiran, RK Sankaranarayanan, G Venkatesh Bulletin of the Chemical Society of Japan 87 (7), 797-808 , 2014 2014 Citations: 21
Investigation of inclusion complexes of sulfamerazine with α-and β-cyclodextrins: an experimental and theoretical study N Rajendiran, T Mohandoss, G Venkatesh Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 124, 441-450 , 2014 2014 Citations: 39
Fabrication of 2D nanosheet through self assembly behavior of sulfamethoxypyridazine inclusion complexes with α-and β-cyclodextrins N Rajendiran, G Venkatesh, T Mohandass Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 123, 158-166 , 2014 2014 Citations: 23
Intramolecular charge transfer effects on 3, 5-diaminobenzoic acid-Effect of beta-cyclodextrin, pH and solvents S Koventhan, G Venkatesh, N Rajendiran JOURNAL OF THE INDIAN CHEMICAL SOCIETY 91 (4), 695-704 , 2014 2014 Citations: 2
A spectroscopic and molecular modeling studies of the inclusion complexes of orciprenaline and terbutaline drugs with native and modified cyclodextrins G Venkatesh, J Thulasidhasan, N Rajendiran Journal of Inclusion Phenomena and Macrocyclic Chemistry 78 (1), 225-237 , 2014 2014 Citations: 9
Cyclodextrin-covered organic microrods and microsheets derived from supramolecular self assembly of 2, 4-dihydroxyazobenzene and 4-hydroxyazobenzene inclusion complexes G Venkatesh, J Saravanan, N Rajendiran Bulletin of the Chemical Society of Japan 87 (2), 283-293 , 2014 2014 Citations: 13
MOST CITED SCHOLAR PUBLICATIONS
Dual fluorescence of fast blue RR and fast violet B: effects of solvents and cyclodextrin complexation AAM Prabhu, RK Sankaranarayanan, G Venkatesh, N Rajendiran The Journal of Physical Chemistry B 116 (30), 9061-9074 , 2012 2012 Citations: 62
Spectral Characteristics of Sulfa Drugs: Effect of Solvents, pH and β -Cyclodextrin AA Muthu Prabhu, G Venkatesh, N Rajendiran Journal of solution chemistry 39 (7), 1061-1086 , 2010 2010 Citations: 60
Dual fluorescence of dothiepin, doxepin drugs—effect of solvents and β-cyclodextrin RK Sankaranarayanan, S Siva, G Venkatesh, AAM Prabhu, N Rajendiran Journal of Molecular Liquids 161 (3), 107-114 , 2011 2011 Citations: 45
Investigation of inclusion complexes of sulfamerazine with α-and β-cyclodextrins: an experimental and theoretical study N Rajendiran, T Mohandoss, G Venkatesh Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 124, 441-450 , 2014 2014 Citations: 39
Inclusion complexes of sulphanilamide drugs and β-cyclodextrin: a theoretical approach G Venkatesh, T Sivasankar, M Karthick, N Rajendiran Journal of Inclusion Phenomena and Macrocyclic Chemistry 77 (1), 309-318 , 2013 2013 Citations: 38
Azonium-Ammonium Tautomerism and Inclusion Complexation of 1-(2, 4-diamino phenylazo) Naphthalene and 4-aminoazobenzene G Venkatesh, AAM Prabhu, N Rajendiran Journal of fluorescence 21 (4), 1485-1497 , 2011 2011 Citations: 38
Absorption and fluorescence spectral characteristics of norepinephrine, epinephrine, isoprenaline, methyl dopa, terbutaline and orciprenaline drugs S Siva, G Venkatesh, AAM Prabhu, RK Sankaranarayanan, N Rajendiran Physics and Chemistry of Liquids 50 (4), 434-452 , 2012 2012 Citations: 35
Effect of Solvents and pH on β -Cyclodextrin Inclusion Complexation of 2,4-Dihydroxyazobenzene and 4-Hydroxyazobenzene J Premakumari, GAG Roy, AAM Prabhu, G Venkatesh, VK Subramanian, ... Journal of solution chemistry 40 (2), 327-347 , 2011 2011 Citations: 35
Azonium-ammonium tautomerism and inclusion complexation of 4-amino-2′, 3-dimethylazobenzene A Prabhu, G Venkatesh, RK Sankaranarayanan, S Siva, N Rajendiran CSIR , 2010 2010 Citations: 33
Spectral characteristics of sulphadiazine, sulphisomidine: effect of solvents, pH and β-cyclodextrin J Premakumari, G Allan Gnana Roy, A Antony Muthu Prabhu, ... Physics and Chemistry of Liquids 49 (1), 108-132 , 2011 2011 Citations: 30
Supramolecular aggregates formed by sulfadiazine and sulfisomidine inclusion complexes with α-and β-cyclodextrins N Rajendiran, G Venkatesh, J Saravanan Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 129, 157-162 , 2014 2014 Citations: 25
Fabrication of 2D nanosheet through self assembly behavior of sulfamethoxypyridazine inclusion complexes with α-and β-cyclodextrins N Rajendiran, G Venkatesh, T Mohandass Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 123, 158-166 , 2014 2014 Citations: 23
Excimer Emission in Inclusion Complexes of Dibenzofuran and 5-Dibenzosuberenone with α-and β-Cyclodextrins N Rajendiran, RK Sankaranarayanan, G Venkatesh Bulletin of the Chemical Society of Japan 87 (7), 797-808 , 2014 2014 Citations: 21
Unusual spectral shifts of imipramine and carbamazepine drugs AAM Prabhu, G Venkatesh, N Rajendiran Journal of fluorescence 20 (6), 1199-1210 , 2010 2010 Citations: 19
Encapsulation of thiazolyazoresorcinol and thiazolyazocresol dyes with α-and β-cyclodextrin cavities: Spectral and molecular modeling studies N Rajendiran, G Venkatesh, RK Sankaranarayanan Journal of Molecular Structure 1072, 242-252 , 2014 2014 Citations: 16
Azo-hydrazo Tautomerism and Inclusion Complexation of 1-phenylazo-2-naphthols with Various Solvents and Delta* b-cyclodextrin A Prabhu, A Muthu, G Venkatesh, N Rajendiran Journal of Fluorescence 20 (4), 961-972 , 2010 2010 Citations: 15
Synthesis and characterisation of Ag-Co-venlafaxine-cyclodextrin nanorods A Mani, G Venkatesh, P Senthilraja, N Rajendiran European Journal of Advanced Chemistry Research 5 (1), 9-16 , 2024 2024 Citations: 14
Cyclodextrin-covered organic microrods and microsheets derived from supramolecular self assembly of 2, 4-dihydroxyazobenzene and 4-hydroxyazobenzene inclusion complexes G Venkatesh, J Saravanan, N Rajendiran Bulletin of the Chemical Society of Japan 87 (2), 283-293 , 2014 2014 Citations: 13
Dual fluorescence of omeprazole: effect of solvents and pH N Rajendiran, G Venkatesh, RK Sankaranarayanan Physics and Chemistry of Liquids 52 (6), 738-750 , 2014 2014 Citations: 11
Excimer formation in inclusion complexes of antihypertensive drugs with HP-α-and HP-β-cyclodextrins MJ Jenita, G Venkatesh, VK Subramanian, N Rajendiran Indian Journal of Chemistry 52, 207-216 , 2013 2013 Citations: 11