The Raman spectrum of biphenyl and biphenyl-d10

Bree, A.; Pang, C.; Rabeneck, Linda

doi:10.1016/0584-8539(71)80082-x

Cited by 49 publications

(11 citation statements)

References 12 publications

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“…A somewhat analogous Fermi resonance has been observed for biphenyl. 15 A band assignable to vRu-pyr was not observed in the (III,III) spectrum but the Fermi resonance condition requires•a value close to 350 cm™1, about 25 cm™1 above the corresponding (11,11) frequency. This is consistent with the somewhat higher effective charge expected for Ru(III).…”

Section: Resultsmentioning

confidence: 97%

Raman spectral evidence for trapped valences in .mu.-pyrazine-decaamminediruthenium(5+)

Strekas¹,

Spiro²

1976

Inorg. Chem.

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Section: Resultsmentioning

confidence: 97%

Raman spectral evidence for trapped valences in .mu.-pyrazine-decaamminediruthenium(5+)

Strekas¹,

Spiro²

1976

Inorg. Chem.

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“…͑1͔͒. 45,61 Consequently, only z-polarized electric dipole matrix elements ͑ z ͒ ge 0 need to be taken into account in Eq. ͑3͒.…”

Section: A Dependence Of the Raman Polarizability On The Number Of Ementioning

confidence: 99%

Effective conjugation and Raman intensities in oligo(para-phenylene)s: A microscopic view from first-principles calculations

Heimel

Somitsch

Knöll

et al. 2005

The Journal of Chemical Physics

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Electron-phonon coupling in oligo(para-phenylene)s is addressed in terms of the off-resonance Raman intensities of two distinct modes at 1220 and 1280 cm(-1). On the basis of Albrecht's theory, vibrational coupling and Raman intensities are calculated from first-principles quantum-chemical methods. A few-state model is used to evaluate the dependence of the mode intensities on oligomer length, planarity, and excitation wavelength. The link between electron delocalizationconjugation and Raman intensities is highlighted. Extending on prior studies, the present work focuses on providing an in-depth understanding of the origin of this correlation in addition to reproducing experimental findings. The model applied here allows us to interpret the results on a microscopic, quantum-mechanical basis and to relate the observed trends to the molecular orbital structure and nature of the excited states in this class of materials. We find quantitative agreement between the results of the calculations and those of measurements performed on oligo(para-phenylene)s of various chain lengths in the solid state and in solution.

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“…BP has been studied extensively as a model system for inter-ring coupling between two phenyl rings. [38][39][40][41][42][43][44][45][46] As in the case of tS, the groundstate vibrational spectra of BP and its isotopomers have been thoroughly studied;43•45•47 and the Raman spectra of S, and Ti BP and the anion and cation radicals of BP have been obtained. [48][49][50][51] Studies in supersonic free jets and of the solid have shown that BP exists in a planar configuration in the ground state.…”

Section: Introductionmentioning

confidence: 99%

Solvent-solute interactions probed by picosecond transient Raman spectroscopy: band assignments and vibrational dynamics of S1 trans-4,4'-diphenylstilbene

Butler¹,

Lynn²,

Gustafson³

1993

J. Phys. Chem.

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We present the ground-and excited-state Raman spectra of trans-4,4'-diphenylstilbene (DPS). We analyze the spectra on the basis of comparison with the Raman spectra of the ground-and excited-state and anion radical spectra of trans-stilbene and biphenyl. The excited-state Raman spectra of DPS in methylene chloride and dioxane exhibit mode-specific, solvent-dependent dynamics. Specifically, the intensities of several vibrational modes associated with the biphenyl portion of DPS are solvent dependent. We attribute the change in intensity to a variation in the Franck-Condon overlap between SI and S, caused by differences in the planarity of the biphenyl portion of DPS in the two solvents. The lower viscosity solvent, methylene chloride, results in a more planar SI structure of DPS than does dioxane. However, the rate at which the SI geometry achieves equilibrium is slower in methylene chloride than it is in dioxane. This result suggests that dielectric stabilization of SI DPS by the solvent, not viscosity, controls the conformational dynamics.

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The Raman spectrum of biphenyl and biphenyl-d10

Cited by 49 publications

References 12 publications

Raman spectral evidence for trapped valences in .mu.-pyrazine-decaamminediruthenium(5+)

Raman spectral evidence for trapped valences in .mu.-pyrazine-decaamminediruthenium(5+)

Effective conjugation and Raman intensities in oligo(para-phenylene)s: A microscopic view from first-principles calculations

Solvent-solute interactions probed by picosecond transient Raman spectroscopy: band assignments and vibrational dynamics of S1 trans-4,4'-diphenylstilbene

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