Der Zusammenhang zwischen dem <i>n</i>→<i>π</i>*-Absorptionsspektrum und dem Emissionsspektrum von Benzaldehyd

Stockburger, M.

doi:10.1524/zpch.1962.31.5_6.350

Cited by 41 publications

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“…G is estimated to be ~ 9"5 cm -1, as discussed in a later section. As the upper limit of lkr(lnzr*) we may use the decay rate of the 1nor* state of benzaldehyde estimated by Stockburger [55]. Then lk~(lmr*) < 1.7 x 10 -6 s -1.…”

Section: Relative Importance Of the Radiative And Non-radiative Decaymentioning

confidence: 99%

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls

Harrigan

Hirota

1976

Molecular Physics

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We have investigated the details of the radiationless decay processes of 37rTr* aromatic carbonyls of benzaldehyde type using microwave-induced delayed phosphorescence (MIDP) technique. Correlations between the decay rates from the spin sublevels and the energy separations between the 37rTr* and 3nTr* state (AETT) and those between the %r~r* and xTrTr* states (AEsT) were examined in detail for a series of systems. It is shown that the decay rates from the z and x sublevels depend on both AETT and AEsT strongly, but the y sublevel decay is independent of them. An empirical model to explain the 9 correlations among the decay rates, ZFS, AETT and AEsT is presented. It is shown that the decays from the z and x sublevels of the 3mr* aromatic carbonyls are dominantly radiationless and are primarily determined by the mixing with the lnTr* states unless AETT is very small. On the other hand, the radiationless decay from the y sublevel is likely due to the mixing with the loft* (1*to*) states. The mechanism for the radiationless decay from each spin sublevel is discussed in view of the results obtained.

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Section: Relative Importance Of the Radiative And Non-radiative Decaymentioning

confidence: 99%

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls

Harrigan

Hirota

1976

Molecular Physics

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Photosensitization by benzaldehyde in the gas phase I. 1,3‐cyclohexadiene

Maré

Goldfinger

Huybrechts

et al. 1969

Ber Bunsenges Phys Chem

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The major products of the photosensitization of 1,3‐cyclohexadiene (25–160 Torr) by benzaldehyde (4.5–5.0 Torr) at 50.0 ± 0.2 °C, using light with wavelengths > 300 nm, are the dimers trans‐cis‐trans‐tricyclo(6.4.0.02,7)dodeca‐3,11‐diene, the corresponding all cis‐isomer, exo‐, and endo‐dicyclohexadiene in the ratio 3:1:0.8:0.04, independent of substrate pressure. Traces of cyclohexene and benzene are also formed, presumably from the decomposition of excited dimers before collisional stabilization can occur. The product distribution and the kinetic features of the reaction are best explained by assuming that the photosensitization involves triplet energy transfer from benzaldehyde to 1,3‐cyclohexadiene molecules.

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(1960–1964)

Passwater

1967

Guide to Fluorescence Literature

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Der Zusammenhang zwischen dem n→π*-Absorptionsspektrum und dem Emissionsspektrum von Benzaldehyd

Cited by 41 publications

References 0 publications

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls

Photosensitization by benzaldehyde in the gas phase I. 1,3‐cyclohexadiene

(1960–1964)

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Der Zusammenhang zwischen dem n→π*-Absorptionsspektrum und dem Emissionsspektrum von Benzaldehyd

Cited by 41 publications

References 0 publications

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of3ππ* aromatic carbonyls

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of3ππ* aromatic carbonyls

Photosensitization by benzaldehyde in the gas phase I. 1,3‐cyclohexadiene

(1960–1964)

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About

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls

Microwave-induced delayed phosphorescence studies of the total and radiationless decay processes of³ππ* aromatic carbonyls