Spectral Study of Intermolecular Interactions in Some Sulfolane/Alcoholic Binary Mixtures Using Solvatochromic Measurements

Sarijloo, Mohsen; Jabbari, Morteza; Farajtabar, Ali

doi:10.1007/s10953-019-00889-9

Cited by 4 publications

(3 citation statements)

References 31 publications

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“…During UV–vis measurements, the temperature was maintained at 298.15 ± 0.1 K. Binary mixtures were prepared by weighing the appropriate quantities of solvents with a Kern electronic balance (ACJ 220-4) with uncertainty in the mass of ±0.1 mg. The solvatochromic measurements were carried out according to the procedure described previously . Briefly, first a 5.0 mL of the stock solution of each probe was prepared in acetone with a concentration of 1 × 10 –2 M, and then about 30 μL (for PNA and DMPNA) and 300 μL (for RD) of the stock solution was transferred to 10 mL glass volumetric tubes.…”

Section: Experimental Sectionmentioning

confidence: 99%

“…The solvatochromic measurements were carried out according to the procedure described previously. 13 Briefly, first a 5.0 mL of the stock solution of each probe was prepared in acetone with a concentration of 1 × 10 −2 M, and then about 30 μL (for PNA and DMPNA) and 300 μL (for RD) of the stock solution was transferred to 10 mL glass volumetric tubes. After the evaporation of the solvent under reduced pressure, 8.0 mL of the pure solvents understudy was pipetted into the tubes, and the mixtures were stirred to a clear and homogenous solution and then kept in the dark.…”

Section: Introductionmentioning

confidence: 99%

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Solvatochromic Measurement of KAT Parameters and Modeling Preferential Solvation in Green Potential Binary Mixtures of N-Formylmorpholine with Water, Alcohols, and Ethyl Acetate

2020

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Kamlet−Abboud−Taft (KAT) solvatochromic parameters (α, β, and π*), as well as the Reichardt's polarity scale (E T (30)), were measured from ultraviolet−visible (UV−vis) absorption spectral shift of three indicator solutes namely 4nitroaniline, N,N-dimethyl-p-nitroaniline, and the betaine dye 4-(2,4,6-triphenylpyridinium-1-yl)-2,6-diphenylphenolate. These measurements were done within the whole mole fraction range of the binary mixture of green solvents N-formylmorpholine with water, ethanol, 1-propanol, 2-propanol, 1-butanol, and ethyl acetate at room temperature (298.15 ± 0.1 K). The Redlich−Kister model was employed to demonstrate the effect of solvent composition on the solvatochromic parameters obtained in the mixtures understudy. The data of E T obtained for the indicator dyes in different mole fractions (0.0−1.0) of the binary mixtures were analyzed to investigate their preferential solvation in terms of both the solute−solvent and the solvent−solvent interactions. The solvent exchange model was successfully utilized to calculate preferential solvation parameters. It was found that the solvation shell of the dyes is mainly affected by the solvent−solvent interactions, and all studied systems showed the nonideal behavior.

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Section: Experimental Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solvatochromic Measurement of KAT Parameters and Modeling Preferential Solvation in Green Potential Binary Mixtures of N-Formylmorpholine with Water, Alcohols, and Ethyl Acetate

2020

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“…The higher acidity and polarity of more oxidized matrix molecules allowed them to more strongly influence the equilibrium between ionized and non‐ionized forms of BrC molecules. By donating protons, they could enhance or suppress charge density and modify electronic transitions (Sarijloo et al., 2019), thereby altering BrC light absorption. The proximity of these matrix molecules in solution and their interactions with BrC compounds ultimately determined the net impact on absorption ‐ whether through enhancement or suppression effects across specific wavelength ranges (Catalan, 2009; Filarowski et al., 2010).…”

Section: Resultsmentioning

confidence: 99%

Organic Matrix Effect on the Molecular Light Absorption of Brown Carbon

Zhang,

Zeng,

Yang

et al. 2023

Geophysical Research Letters

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Brown carbon (BrC) absorption impacts radiative forcing and climate change. Quantifying radiative forcing of BrC requires understanding its molecular composition and absorption characteristics. While organic molecules surrounding BrC may impact its absorption, their effects have not yet been investigated. This research determined matrix effect on BrC absorption by comparing individual BrC molecules and BrC within an organic matrix. Over 20,000 water‐soluble organic molecules constituted the water‐soluble BrC and associated organic matrix. The matrix enhanced aliphatic BrC absorption but suppressed aromatic BrC, especially with higher matrix O/C ratios indicating greater polarity and acidity. By directly measuring and modeling organic matrix effect on BrC, we can improve climate prediction precision and aerosol‐radiation interaction comprehension.

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Acidity and pH of DES-like mixtures and the possibilities of their determination

Jančíková,

Majová,

Jablonský

2024

Journal of Molecular Liquids

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Spectral Study of Intermolecular Interactions in Some Sulfolane/Alcoholic Binary Mixtures Using Solvatochromic Measurements

Cited by 4 publications

References 31 publications

Solvatochromic Measurement of KAT Parameters and Modeling Preferential Solvation in Green Potential Binary Mixtures of N-Formylmorpholine with Water, Alcohols, and Ethyl Acetate

Solvatochromic Measurement of KAT Parameters and Modeling Preferential Solvation in Green Potential Binary Mixtures of N-Formylmorpholine with Water, Alcohols, and Ethyl Acetate

Organic Matrix Effect on the Molecular Light Absorption of Brown Carbon

Acidity and pH of DES-like mixtures and the possibilities of their determination

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