Spectroscopic and time domain reflectometry studies on acetonitrile - Ethylene glycol binary solutions

Mahendraprabu, A.; Kumbharkhane, A.C.; Joshi, Y.S.; Shaikh, S.S.; Kannan, P.; Karthick, N.; Arivazhagan, G.

doi:10.1016/j.molstruc.2017.02.017

Cited by 14 publications

(2 citation statements)

References 55 publications

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“…The positive e s E values could be either due to increase in effective number of dipoles than those in neat EGMME and neat ethanol or increase in dipole moments of the corresponding molecules. The negative values of e s E suggests the decrease in effective number of dipoles or decrease in the dipole moments of molecules [26]. These observations are in good agreement with the relaxation phenomenon as discussed above.…”

Section: Excess Dielectric Permittivity (E Ssupporting

confidence: 88%

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Pabboj,

Lakhamawad,

Jinklor

et al. 2024

Phys. Scr.

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The dielectric measurement of neat ethylene glycol monomethyl ether (EGMME), neat ethanol and their binary mixtures have been carried out using time domain technique in frequency range of 10 MHz to 50 GHz at the temperature range from 10 °C to 25 °C with a difference of 5 °C. The frequency domain technique within the frequency range of 20 Hz to 2 MHz is used to obtain complex dielectric permittivity ɛ*(ω), electrical modulus M*(ω), complex electrical conductivity σ*(ω) and loss tangent (tan δ) at 25 °C. The dielectric spectra obtained using TDR technique are fitted in Cole-Davidson model to extract the dielectric parameters such as static dielectric permittivity (εs), relaxation time (τ) and asymmetric distribution parameter (β). These relaxation parameter values are used to predict intermolecular hydrogen bonding between EGMME and ethanol molecules. Furthermore, the inter-molecular interactions through H-bonding between EGMME and ethanol molecules have been confirmed and discussed using Kirkwood correlation factor, excess permittivity, thermodynamic parameter, Bruggeman factor, excess molar volume, excess dielectric permittivity at high frequency and fourier transform infrared (FTIR) spectra.

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Section: Excess Dielectric Permittivity (E Ssupporting

confidence: 88%

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Pabboj,

Lakhamawad,

Jinklor

et al. 2024

Phys. Scr.

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“…The excess permittivity is a parameter which can be used to investigate the heteromolecular interactions a solution has been calculated using the following four in formulae, [22][23][24][25] (5)…”

Section: (4)mentioning

confidence: 99%

Time Domain Reflectometric Studies on Methylcellosolve – Acetylacetone Binary Solutions

et al. 2021

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Time Domain Reflectometric studies has been applied on the binary solutions of methylcellosolve (MCS) with acetylacetone (ACACT) in the entire concentration range at 298 K in the frequency range of 10 MHz – 32 GHz. The values of relaxation time (τ), effective Kirkwood correlation factor (geff ), corrective Kirkwood correlation factor (gf ) and excess permittivity (εE ) have been calculated. The relaxation time of MCS slowly decreases with increase in ACACT concentration suggesting that the size of the heteroassociated rotating unit decreases. The rate at which τ value decreases is more in MCS rich solutions which means that the formation of heteromolecular H – bonds dominantly occur in MCS rich solutions. Parallel orientation among the dipoles occur as suggested by the g^eff values which are greater than unity in all the solutions. The excess permittivity ε^E values calculated using mole and volume fractions qualitatively exhibit the same deviation from ideal behaviour.

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Heteromolecular H –bond interaction forces and dielectric parameters: Time domain reflectometry studies

Dineshkumar¹,

Sahana²,

Shanmugam

et al. 2022

Chemical Physics Letters

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Spectroscopic and time domain reflectometry studies on acetonitrile - Ethylene glycol binary solutions

Cited by 14 publications

References 55 publications

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

H-bonding interaction study for binary mixtures of methyl cellosolve and ethanol: a dielectric, FTIR spectroscopic and volumetric approach

Time Domain Reflectometric Studies on Methylcellosolve – Acetylacetone Binary Solutions

Heteromolecular H –bond interaction forces and dielectric parameters: Time domain reflectometry studies

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