Optical Kerr effect in a series of n-alcohols

Błaszczak, Zdzisław; Farhoud, Maher

doi:10.1039/ft9949002455

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…Particular attention has been paid to OKE in alcohols in nanosecond time domain. For all the alcohols studied, a linear relationship between the carbon chain length and optical Kerr constant was found [12,13]. The results reported by Ho and Alfano [7], who measured the picosecond optical Kerr response of five alcohols, could also be interpreted as supporting this finding.…”

Section: Introductionsupporting

confidence: 75%

Solute-Solvent Interaction in Aqueous Solutions Studied by Optical Kerr Effect

Błaszczak

Farhoud

1997

Acta Phys. Pol. A

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Solute-solvent interactions were studied by a method based on laser induced optical birefringence in aqueous solutions. The paper reports results of the optical Kerr constant measurements for binary liquid mixtures of aqueous solution of methanol, ethanol, n-propanol and acetone at room temperature in a wide range of concentrations. At 50% concentration of the above mentioned alcohols, the temperature dependence of the laser induced optical birefringence was also measured in the range from 283 K to 315 K. These data together with the density and refractive index were used to calculate the optical and specific Kerr constants. Moreover, these data enabled the calculation of the anisotropic factors, optical anisotropy and orientation function of the substances studied.

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Section: Introductionsupporting

confidence: 75%

Solute-Solvent Interaction in Aqueous Solutions Studied by Optical Kerr Effect

Błaszczak

Farhoud

1997

Acta Phys. Pol. A

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“…Experimental values of densities, viscosities, refractive indices, and heat capacities of the pure components were compared with literature data, ,− as shown in Table .…”

Section: Methodsmentioning

confidence: 99%

Excess Molar Enthalpies, Molar Heat Capacities, Densities, Viscosities, and Refractive Indices of Dimethyl Sulfoxide + 1-Propanol at (288.15, 298.15, and 308.15) K and at Normal Pressure

et al. 2006

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Excess molar enthalpies, molar heat capacities, densities, viscosities, and refractive indices of dimethyl sulfoxide + 1-propanol have been measured at (288.15, 298.15, and 308.15) K and at normal pressure using an LKB microcalorimeter, a Perkin-Elmer differential scanning calorimeter, an Anton Paar density meter, a Schott-Geräte AVS unit, and an Abbe refractometer, respectively. Heat capacities of 1-propanol have been determined in the range 288.15 < T/K < 333.15. The results were fitted to the Redlich−Kister polynomial equation to obtain the adjustable parameters and standard deviations.

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“…As benzene has lower intersystem crossing quantum yield (Φ ISC = 0.25) [113] than naphthalene (Φ ISC = 0.75), [114] it is likely that the photoreaction of 19 occurs either only from triplet, or from both the S 1 and T 1 states, while the photodegradation of 22 should occur solely from the T 1 state. On the contrary, the Φ ISC of COT is rather low [115] so that 25 will remain in the S 1 state, unless triplet sensitizers are used.…”

Section: Chemistry-a European Journalmentioning

confidence: 99%

Photochemistry Driven by Excited‐State Aromaticity Gain or Antiaromaticity Relief

Yan

Slanina

Bergman

et al. 2023

Chemistry A European J

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Gain of aromaticity or relief of antiaromaticity along a reaction path are important factors to consider in mechanism studies. Analysis of such changes along potential energy surfaces has historically focused on reactions in the electronic ground state (S 0 ), but can also be used for excited states. In the lowest ππ* states, the electron counts for aromaticity and antiaromaticity follow Baird's rule where 4n π-electrons indicate aromaticity and 4n + 2 π-electrons antiaromaticity. Yet, there are also cases where Hückel's rule plays a role in the excited state. The electron count reversals of Baird's rule compared to Hückel's rule explain many altered physicochemical properties upon excitation of (hetero)annulene derivatives. Here we illustrate how the gain of excited-state aromaticity (ESA) and relief of excited-state antiaromaticity (ESAA) have an impact on photoreactivity and photostability. Emphasis is placed on recent findings supported by the results of quantum chemical calculations, and photoreactions in a wide variety of areas are covered.

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Optical Kerr effect in a series of n-alcohols

Cited by 11 publications

References 8 publications

Solute-Solvent Interaction in Aqueous Solutions Studied by Optical Kerr Effect

Solute-Solvent Interaction in Aqueous Solutions Studied by Optical Kerr Effect

Excess Molar Enthalpies, Molar Heat Capacities, Densities, Viscosities, and Refractive Indices of Dimethyl Sulfoxide + 1-Propanol at (288.15, 298.15, and 308.15) K and at Normal Pressure

Photochemistry Driven by Excited‐State Aromaticity Gain or Antiaromaticity Relief

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