Thermodynamic, transport, and spectroscopic studies for mixtures of isomeric butanediol and N-methyl-2-pyrrolidinone

Mehta, S.K.; Ram, Ganga; Chauhan, Raj Kumar; Bhasin, K. K.

doi:10.1016/j.jct.2009.06.006

Cited by 22 publications

(5 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6 that in the NMP-AB system the bands appear at 3341.2 cm −1 and 3420.4 cm −1 for 0.4870 mole fraction; with further increase or decrease in concentration, the \NH bands shift toward higher frequency which indicates the weakening of molecular association [52] through inter molecular hydrogen bonding. Thus, the study of IR spectra shows that the strength of complex formation becomes maximum at 0.4870 mole fraction for the NMP+ AB system at 303.15 K. Similar results of hydrogen bonding, between NMP and butanediol are reported by S. K. Mehta et al [35].…”

Section: Spectral Studiessupporting

confidence: 86%

“…The graphical representation of Fig. 1 and results in Table 4 i) the possibility of specific interactions between NMP and AB, besides dipole-dipole interactions, due to hydrogen bond formation [35] between the CO group of NMP (which acts as hydrogen bond acceptor) and N\H of AB which is a hydrogen bond donor (evidenced by IR spectral studies) and ii) higher electro negative difference between the C and N of sp 2 C\NH 2 bond in aniline. The replacement of Chloro-group by a Bromo-group, resulted in less negative values of V m E in NMP + BB mixture.…”

Section: Volumetric Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Thermodynamic and spectroscopic study of molecular interactions in the binary liquid mixtures of N-methyl-2-pyrrolidone and some substituted benzenes at different temperatures

Kumar

Reddy

Rao³

et al. 2012

Journal of Molecular Liquids

View full text Add to dashboard Cite

Section: Spectral Studiessupporting

confidence: 86%

Section: Volumetric Studiesmentioning

confidence: 99%

Thermodynamic and spectroscopic study of molecular interactions in the binary liquid mixtures of N-methyl-2-pyrrolidone and some substituted benzenes at different temperatures

Kumar

Reddy

Rao³

et al. 2012

Journal of Molecular Liquids

View full text Add to dashboard Cite

“…Meaningful physical information about thermodynamic properties can be obtained from spectroscopic measurements. − Spectroscopic studies, viz., FT-NMR and FT-IR have also been performed over the whole composition range to understand the obtained volumetric behavior of binary mixtures of {[EMIM][NTf 2 ] + TX}.…”

Section: Resultsmentioning

confidence: 99%

Physiochemical Properties of New Formulations of 1-Ethyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide with Tritons

et al. 2014

View full text Add to dashboard Cite

Thermophysical properties including density (ρ), speed of sound (u), specific conductivity (κ), and refractive index (n D ) for binary mixtures of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide with Triton X-45 and Triton X-100 have been studied over the entire composition range at different temperatures (293.15 to 323.15) K. Further the excess molar volume (V E ), deviations in isentropic compressibility (ΔK S ), deviation in specific conductivity (Δκ), deviation in molar refractive index (ΔR), and partial molar quantities, viz., partial molar excess volume (V i E ), and partial molar deviation in isentropic compressibility (ΔK S,i ), have also been evaluated. In order to gain insight into molecular interactions taking place between different components of the binary mixtures, spectroscopic properties, viz., FT-IR and 1 H and 13 C FT-NMR spectroscopy of these binary mixtures, have been measured and analyzed. The measured thermophysical parameters and their excess values have been used to interpret the structural and interactional behavior of studied formulations. It has been seen that V E , ΔK S , Δκ, and ΔR results are in agreement, which confirms that the addition ofa number of oxyethylene groups in Tritons and a rise in temperature resulted in stronger intermolecular interactions. FT-NMR and FT-IR results reveal that interactions are mainly taking place via π−π stacking between two rings of both components.

show abstract

“…The reduced density gradient (RDG) is calculated using Multiwfn. [19] Such RDG is then visualized which makes it easy to recognize the hydrogen bond. By integrating the RDG function with (r) function, we may differentiate between the form and strength of the weak interaction [20].…”

Section: C=o Stretching Regionmentioning

confidence: 99%

Molecular Interaction Studies of Phenol With Acetaldehyde Using Ultrasonic and Ftir Technique

Asghar

Sridhar

Sivakumar

2021

JASR

View full text Add to dashboard Cite

The densities ( ), viscosities ( ) and ultrasonic velocities (U) were measured for the binary mixtures of Phenol with Acetaldehyde at 303K.Excess volumes (VmE), isentropic compressibilities (ksE) and isentropic compressibilities (ksE) were determined from these experimental findings. To obtain their coefficients and standard deviations, the excess or deviation properties were based on Redlich-Kister polynomial equation. Depending on the molecular interactions between the components of hetero molecules, the excess or deviation properties were considered either negative, and the nature of liquid mixtures was studied in terms of molecular interactions by steric and electronic effects. The FTIR provides support to thermodynamic studies to classify different interactions between molecules that are unlike them.

show abstract

Thermodynamic, transport, and spectroscopic studies for mixtures of isomeric butanediol and N-methyl-2-pyrrolidinone

Cited by 22 publications

References 38 publications

Thermodynamic and spectroscopic study of molecular interactions in the binary liquid mixtures of N-methyl-2-pyrrolidone and some substituted benzenes at different temperatures

Thermodynamic and spectroscopic study of molecular interactions in the binary liquid mixtures of N-methyl-2-pyrrolidone and some substituted benzenes at different temperatures

Physiochemical Properties of New Formulations of 1-Ethyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide with Tritons

Molecular Interaction Studies of Phenol With Acetaldehyde Using Ultrasonic and Ftir Technique

Contact Info

Product

Resources

About