Gas-phase molecular complexes. The furan-iodine charge-transfer complex

Rate constants, kq, for the quenching of the singlet state of benzene, toluene, p-xylene, fluorobenzene, trifluoromethyl benzene, p-bis(trifluoromethyl)benzene, and aniline by CCl4, CH3CCl3, CHCl3, and CFCl3, in the gas phase have been determined. In each instance the quenching is via a charge-transfer complex with the aromatic acting as donor. There is a linear dependence between ln kq and IP (ionization potential) of the aromatics which supports Klein's model for exciplex formation. The most effective quencher is CCl4 while the least effective is CFCl3. The most effective donor was aniline while the least effective one was p-bis(trifluoromethyl)benzene. In general, fluorinated aromatics are less effective donors than the corresponding protonated molecules.

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Charge-Transfer Complex between Sulphur Dioxide and Trimethylamine in the Gas Phase and in Heptane

Nature ◽

10.1038/2141111b0 ◽

1967 ◽

Vol 214 (5093) ◽

pp. 1111-1112 ◽

Cited By ~ 14

Author(s):

SHERRIL D. CHRISTIAN ◽

JUST GRUNDNES

Keyword(s):

Charge Transfer ◽

Gas Phase ◽

Sulphur Dioxide ◽

Charge Transfer Complex

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TCNE-aniline charge transfer complex: ab initio and TDDFT investigations in gas phase

Journal of Molecular Modeling ◽

10.1007/s00894-008-0443-4 ◽

2009 ◽

Vol 15 (8) ◽

pp. 885-895 ◽

Cited By ~ 6

Author(s):

Tapas Manna ◽

Sumanta Bhattacharya

Keyword(s):

Charge Transfer ◽

Ab Initio ◽

Gas Phase ◽

Charge Transfer Complex

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Charge-Transfer Complexes of Brominated Polycyclic Aromatic Hydrocarbons

Australian Journal of Chemistry ◽

10.1071/ch9620278 ◽

1962 ◽

Vol 15 (2) ◽

pp. 278 ◽

Cited By ~ 4

Author(s):

TM Spotswood

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Charge Transfer ◽

Aromatic Hydrocarbons ◽

Charge Transfer Complex ◽

Equilibrium Constants ◽

Molecular Complexes ◽

Charge Transfer Complexes ◽

Extinction Coefficients ◽

Polycyclic Aromatic ◽

Molar Extinction Coefficients

Charge-transfer complex formation between the donors 1-bromonaphthalene. 9-bromophenanthrene, 9-bromoanthracene, 3-bromopyrene, and 7-bromobenz[a]-anthracene and the acceptors iodine, tetrachlorophthalic anhydride, 1,3,5-trinitrobenzene, and 2,4,7-trinitrofluorenone has been investigated. The positions of the charge-transfer absorption maxima, apparent molar extinction coefficients, and equilibrium constants have been determined in carbon tetrachloride solution and the results compared with those for the corresponding unsubstituted polycyclic aromatic hydrocarbons. The positions of the absorption maxima of the charge-transfer bands of the brominated hydrocarbons were anomalous but the apparent molar extinction coefficients and equilibrium constants were similar to those obtained for the parent hydrocarbons. The strength of charge-transfer bonding in molecular complexes of brominated polycyclic aromatic hydrocarbons is shown to be of the same order as that in molecular complexes of the unsubstituted hydrocarbons.

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