Search results for: Shipra Baluja

Items from 1 to 20 out of 37 results

article

Synthesis and evaluation of thermodynamic solubility of triazolo quinolone class derivatives in various solvents at 298.15-328.15 K

Shipra Baluja, Mona Pithiya, Divyata Lava

World Scientific News > 2021 > 151 > 16-30

The solubility of triazolo quinolone class derivatives in methanol, ethanol, n-propanol, n-butanol and ethyl acetate was measured using a gravimetrical method at temperature ranging from 298.15 K to 328.15 K. The results of these measurements were correlated with semi empirical equations. Some thermodynamic parameters such as dissolution enthalpy, Gibb’s free energy and entropy of mixing have also...

article

Triazolo derivatives: Synthesis and ultrasonic behaviour in DMF and DMSO solutions over a wide range of temperatures

Shipra Baluja, Mona Pithiya, Asmita Hirapara, Divyata Lava

World Scientific News > 2018 > 114 > 177-194

Ultrasonic velocity, density and viscosity of two new triazolo derivatives were measured in DMF and DMSO over a range of temperatures. From these measured experimental data, various acoustical parameters were calculated to understand the molecular interactions occurring in the solution.

article

Solubility and solution thermodynamics of hippuric acid in various solvents from 298.15K to 328.15K

Shipra Baluja, Elham Abdullah Mo Alnayab, Asmita Hirapara

Journal of Molecular Liquids > 2017 > 238 > C > 84-88

The solubility of hippuric acid in methanol, ethanol, 1-propanol, 1-butanol, 1,4-dioxane, chloroform, dimethylformamide and tetrahydrofuran was measured by gravimetric method over a temperature range (298.15 to 328.15)K at atmospheric pressure. The solubility of hippuric acid is found to increase nonlinearly with temperature. Further, in alcoholic solvents, solubility is maximum in methanol and minimum...

article

Effect of pH on Size and Antibacterial Activity of Salvadora oleoides Leaf Extract-Mediated Synthesis of Zinc Oxide Nanoparticles

Hemali Padalia, Shipra Baluja, Sumitra Chanda

BioNanoScience > 2017 > 7 > 1 > 40-49

Green synthesis of metal nanoparticles is an interesting issue of nanotechnology. In the present study, zinc oxide nanoparticles were synthesized using Salvadora oleoides leaf aqueous extract and effect of pH on formation of zinc oxide nanoparticles was evaluated. The formation of zinc oxide nanoparticles was characterized by various spectral analysis like UV–Vis spectroscopy, zeta potential measurements,...

article

Experimental determination of solubility of dihydropyridine derivatives in organic solvents at different temperatures: Interactions and thermodynamic parameters relating to the solvation process

Shipra Baluja, Rahul Talaviya

Journal of Molecular Liquids > 2016 > 223 > C > 436-447

A novel series of dihydropyridine derivatives were synthesized and characterization of all these synthesized compounds was done by IR, ¹H NMR, ¹³C NMR and mass spectral data. For all these compounds, solubility was determined by gravimetric method in various polar and non-polar solvents such as methanol, ethanol, 1-propanol, 1-butanol, chloroform, ethyl acetate and 1,4-dioxane. It is found that solubility...

article

Kinetics of thermal degradation of cyanopyridine derivatives

Shipra Baluja, Jagdish Movaliya, Paras Ramavat

World Scientific News > 2016 > 60 > 113-120

Some new cyanopyridine derivatives have been synthesized and characterization of the synthesized compounds was done by IR, NMR and mass spectral data. The thermal properties of these compounds were studied by thermogravimetry. The thermal stability, melting temperature and some kinetic parameters such as energy of activation, frequency factor, order of reaction and entropy of activation were evaluated...

article

Synthesis and thermal decomposition study of some dihydropyridine derivatives

Shipra Baluja, Rahul Talaviya

World Scientific News > 2016 > 37 > 304-319

Some new dihydropyridine derivatives have been synthesized and their characterization was done by FT-IR, 1H NMR and Mass spectral data. Thermal analysis of these dihydropyridine derivatives have been carried out by thermao gravimetric (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC) techniques. Further, from thermograms of these compounds, various kinetic parameters...

article

Cyanopyrans: Synthesis and antimicrobial screening

Shipra Baluja, Pooja Moteriya, Sumitra Chanda, Kajal Nandha

World Scientific News > 2016 > 46 > 35-51

A series of cyanopyran derivatives have been synthesized and their structures were confirmed by IR, 1H NMR and mass spectral data. All these synthesized compounds were tested in vitro for their antimicrobial potential by agar-well diffusion method against Gram positive, Gram negative strains of bacteria as well as fungal strains in N,N-dimethylformamide and dimethyl sulfoxide.

article

Ultrasonic velocity, density and viscosity measurement of pyrimidine derivatives in 1,4-dioxane and DMF at various temperatures

Shipra Baluja, Kajal Nandha, Paras Ramavat

World Scientific News > 2016 > 44 > 257-278

The estimation of density, viscosity and ultrasonic velocity of solution of pyrimidine derivatives in 1,4-dioxane and N,N-dimethylformamide was carried out as functions of concentration (0.01 to 0.1 M) and temperature (298.15 to 318.15 K). Some acoustical and apparent parameters such as acoustical impedance (Z), intermolecular free length (Lf), adiabatic compressibility (κs), molar compressibility...

article

Effect of temperature on thermo-physical properties of pyrazolo quinazoline derivatives by ultrasonic studies

Shipra Baluja, Paras Ramavat, Kajal Nandha

World Scientific News > 2016 > 47 > 2 > 89-111

Density (ρ), Sound velocity (U) and viscosity (ɳ) of pure solvent N,N-dimethylformamide (DMF) and solutions of pyrazolo quinazoline derivatives in DMF were taken at different concentration range and at different temperatures by using Antone paar. From these experimental data, some acoustical parameters such as adiabatic compressibility (κs), intermolecular free length (Lf), solvation number (Sn),...

article

Solubility of pyrimidine derivatives in different organic solvents at different temperatures

Shipra Baluja

World Scientific News > 2016 > 44 > 13-34

The objective of this study was to measure and correlate the solubility of pyrimidine derivatives in five different solvents namely chloroform, N,N-dimethylformamide, tetrahydrofuran, 1,4-dioxane and ethyl acetate from 298.15 to 328.15 K under atmospheric pressure of 0.1 MPa using gravimetric method. The characterization of all the synthesized compounds was done by IR, NMR and mass spectra. The modified...

article

Solubility of pyrimidine derivatives in different organic solvents at different temperatures

Shipra Baluja, Kajal Nandha, Paras Ramavat

World Scientific News > 2016 > 44 > 13-34

article

Synthesis and thermal decomposition kinetics of some pyrazolo-quinazoline derivatives

Shipra Baluja, Kajal Nandha

World Scientific News > 2016 > 31 > 100-110

Some new pyrazolo-quinazolines have been synthesized and characterization of the synthesized was done by IR, NMR and mass spectral data. The thermal properties of some synthesized compounds were studied by TGA and DSC methods. From the thermo grams, thermal stability and some kinetic parameters such as energy of activation, frequency factor, order of reaction and entropy of activation were evaluated...

article

Synthesis and thermal decomposition study of some dihydropyridine derivatives

Shipra Baluja, Rahul Talaviya

World Scientific News > 2016 > 39 > 1-16

article

Studies on some physical properties of pyrazolo-quinazolines

Shipra Baluja, Paras Ramavat, Kajal Nandha

World Scientific News > 2016 > 29 > 12-24

Some new pyrazolo-quinazoline derivatives have been synthesized and their characterization was done by IR, NMR and mass spectra. Further, some physicochemical properties such as density, refractive index, have been studied for these synthesized compounds, in different solvents at 298.15 K, 308.15 K and 318.15 K temperatures. Conductance has been studied for these synthesized compounds, in different...

article

Synthesis and Antibacterial Studies of Some Metal Chelates of 1,2,4-triazole Schiff Bases

Shipra Baluja, Sumitra Chanda, Nilesh Godvani

Pharmaceutical Chemistry Journal > 2015 > 48 > 12 > 795-799

Some metal complexes of Schiff bases derived from 1,2,4-triazole were synthesized and characterized by IR and NMR spectroscopy. The antibacterial activity of the synthesized compounds was evaluated in dimethylsulfoxide against various bacterial strains. It is established that cobalt complexes are more effective than other metal complexes and Schiff bases in inhibiting the studied bacteria.

article

Determination of dissociation constant of some quinazoline derivatives at different temperatures in DMF–water medium

Shipra Baluja, Kajal Nandha

Journal of Molecular Liquids > 2015 > 201 > Complete > 90-95

The dissociation constant and some thermodynamic parameters of synthesized pyrazolo[5,1-b]quinazolines are determined by Calvin Bjerrum pH titration method in mixed organic-water (60:40v/v) solvent systems. The evaluated data are discussed in terms of the electron donating or electron withdrawing nature of side chain substitutions. The compound containing 4-flouro group is the most acidic whereas...

article

Chenodeoxycholic acid: A Physicochemical study

Shipra Baluja, Kapil Bhesaniya

World Scientific News > 2015 > 12 > 155-167

Some physicochemical properties such as dissociation constant, acoustical parameters and thermal studies of acid are studied in methanol and 1,4-dioxane at 298.15 K. The dissociation constant of Chenodeoxycholic acid is evaluated in binary mixtures (of methanol / 1,4-dioxane + water) by two methods; half-integral and average methods. The acoustical properties have been evaluated from experimental...

article

Chenodeoxycholic acid: A Physicochemical study

Shipra Baluja, Kapil Bhesaniya

World Scientific News > 2015 > 18 > 115-127

article

Determination of dissociation constants and thermodynamic parameters of pyrimidine derivatives in organic-water mixed solvents at different temperatures

Kapil Bhesaniya, Shipra Baluja

Journal of Molecular Liquids > 2014 > 199 > Complete > 419-425

Two novel pyrimidine derivatives have been synthesized and their structures have been confirmed by IR, ¹ H NMR and mass spectral data. The dissociation constants of these two compounds; 4-(naphthalen-1-yloxy)-N-(p-tolyl) pyrimidin-2-amine (TP-1) and N-(4-fluoro phenyl)-4-(naphthalen-1-yloxy) pyrimidin-2-amine (FP-1) were studied in methanol/DMF - water (60:40v/v) solvent systems at different...

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ACOUSTICAL PARAMETERS (4)
MOLECULAR INTERACTIONS (4)
ACOUSTICAL PROPERTIES (3)
DISSOCIATION CONSTANT (3)
DMF (3)
SCHIFF BASES (3)
ULTRASONIC VELOCITY (3)
ANTIBACTERIAL ACTIVITY (2)
APELBLAT EQUATION (2)
AVERAGE METHOD (2)
DIFFERENTIAL SCANNING CALORIMETRY (2)
DIHYDROPYRIDINE DERIVATIVES (2)
DMSO (2)
ENTHALPY (2)
PYRIMIDINE DERIVATIVES; APELBLAT EQUATION; BUCHOWSKI-KSIAZACK ΛH EQUATION; GIBB׳S ENERGY (2)
SOLUBILITY (2)
THERMODYNAMIC PARAMETERS (2)
ULTRASONIC STUDY (2)
1, 4-DIOXANE (1)
1,2,4-TRIAZOLE (1)
1,2-DIMETHOXYETHANE (1)
1,4-DIOXANE (1)
2-BUTANONE (1)
3RD AND 4TH DERIVATIVES OF G (1)
ALCOHOLS (1)
ANTI BACTERIAL (1)
ANTI CANCER (1)
ANTI FUNGAL (1)
ANTI INFLAMMATORY (1)
ANTI VIRAL (1)
AQUEOUS 2-BUTOXYETHANOL (1)
BINARY LIQUID SOLUTION (1)
BUCHOWSKI-KSIAZACK ΛH EQUATION (1)
BUCHOWSKI-KSIAZCZAK EQUATION (1)
CHALCONES (1)
CHENODEOXYCHOLIC ACID (1)
CONDUCTANCE (1)
CYANOPYRIDINE; THERMOGRAVIMETRY; THERMOGRAMS; IR; NMR; MS (1)
CYCLOHEXANONE (1)
DEBYE TEMPERATURE (1)
DENSITY (1)
DERIVATIVES OF 4-AMINO ANTIPYRENE (1)
DERIVATIVES OF 6-ETHYLBENZENE-1,3-DIOL (1)
DIFFERENTIAL PRESSURE PERTURBATION CALORIMETRY (1)
DIHYDROPYRIDINE DERIVATIVES; THERMO GRAVIMETRIC ANALYSIS; DIFFERENTIAL SCANNING CALORIMETRY (1)
DIMETHYL FORMAMIDE (1)
DISSOCIATION CONSTANT; ACOUSTICAL PARAMETERS; THERMAL ANALYSIS (1)
DMSO. (1)
EFFECT OF PH (1)
EINSTEIN TEMPERATURE (1)
ENTROPY (1)
ENTROPY CHANGE (1)
ETHYL ACETATE (1)
EXCESS ENTHALPY (1)
EXCESS HEAT CAPACITY (1)
EXCESS MOLAR VOLUME (1)
GIBB'S ENERGY (1)
GIBB'S FREE ENERGY (1)
GIBBS FREE ENERGY (1)
GREEN SYNTHESIS (1)
HALF INTEGRAL METHOD (1)
HEAT CAPACITY (1)
HIPPURIC ACID (1)
HYDROGEN BONDING (1)
IMIDAZOLINONE DERIVATIVES (1)
KINETIC PARAMETERS (1)
LEAD DIPHOSPHOSELENATE (1)
LEAD-TIN DIPHOSPHOSELENATE MIXED CRYSTAL (1)
METAL COMPLEXES (1)
N-DIMETHYLFORMAMIDE (1)
PARTIAL MOLAR ENTROPY-VOLUME CROSS FLUCTUATION DENSITY (1)
PYRAZOLO ALDEHYDE; CYANOPYRAN; ANTIMICROBIAL ACTIVITY; AGAR-WELL DIFFUSION METHOD; N (1)
PYRAZOLO QUINAZOLINE DERIVATIVES; ACOUSTICAL PARAMETER; MOLECULAR INTERACTIONS; DENSITY; APPARENT MOLAR COMPRESSIBILITY (1)
PYRAZOLO-QUINAZOLINE DERIVATIVES (1)
PYRAZOLO-QUINAZOLINES (1)
PYRAZOLO[5,1-B]QUINAZOLINES (1)
PYRIMIDINE DERIVATIVE (1)
PYRIMIDINE DERIVATIVES; ULTRASONIC VELOCITY; VISCOMETRY; MOLECULAR INTERACTION; APPARENT MOLAR COMPRESSIBILITY (1)
REFRACTIVE INDEX (1)
SALVADORA OLEOIDES (1)
SULPHONAMIDE DERIVATIVES (1)
THERMAL ANALYSIS (1)
THERMAL EXPANSIVITY (1)
THERMAL GRAVIMETRIC ANALYSIS (1)
THERMAL STABILITY (1)
THERMO GRAVIMETRIC ANALYSIS (1)
THERMODYNAMIC PARAMETER (1)
TRIAZOLE (1)
TRIAZOLO QUINOLONE (1)
ZINC OXIDE NANOPARTICLES (1)
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PSJD (14)
ACS (5)
Springer (4)

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World Scientific News (14)
Journal of Chemical & Engineering Data (5)
Journal of Molecular Liquids (5)
Fluid Phase Equilibria (4)
BioNanoScience (1)
Chemical Physics Letters (1)
Chinese Journal of Chemical Engineering (1)
European Polymer Journal (1)
Journal of Solution Chemistry (1)
Pharmaceutical Chemistry Journal (1)
Russian Journal of Physical Chemistry A (1)
The Journal of Chemical Thermodynamics (1)
Thermochimica Acta (1)
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INFONA - science communication portal

Search results for: Shipra Baluja

Synthesis and evaluation of thermodynamic solubility of triazolo quinolone class derivatives in various solvents at 298.15-328.15 K

Triazolo derivatives: Synthesis and ultrasonic behaviour in DMF and DMSO solutions over a wide range of temperatures

Solubility and solution thermodynamics of hippuric acid in various solvents from 298.15K to 328.15K

Effect of pH on Size and Antibacterial Activity of Salvadora oleoides Leaf Extract-Mediated Synthesis of Zinc Oxide Nanoparticles

Experimental determination of solubility of dihydropyridine derivatives in organic solvents at different temperatures: Interactions and thermodynamic parameters relating to the solvation process

Kinetics of thermal degradation of cyanopyridine derivatives

Synthesis and thermal decomposition study of some dihydropyridine derivatives

Cyanopyrans: Synthesis and antimicrobial screening

Ultrasonic velocity, density and viscosity measurement of pyrimidine derivatives in 1,4-dioxane and DMF at various temperatures

Effect of temperature on thermo-physical properties of pyrazolo quinazoline derivatives by ultrasonic studies

Solubility of pyrimidine derivatives in different organic solvents at different temperatures

Solubility of pyrimidine derivatives in different organic solvents at different temperatures

Synthesis and thermal decomposition kinetics of some pyrazolo-quinazoline derivatives

Synthesis and thermal decomposition study of some dihydropyridine derivatives

Studies on some physical properties of pyrazolo-quinazolines

Synthesis and Antibacterial Studies of Some Metal Chelates of 1,2,4-triazole Schiff Bases

Determination of dissociation constant of some quinazoline derivatives at different temperatures in DMF–water medium

Chenodeoxycholic acid: A Physicochemical study

Chenodeoxycholic acid: A Physicochemical study

Determination of dissociation constants and thermodynamic parameters of pyrimidine derivatives in organic-water mixed solvents at different temperatures

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