Transient Charge-transfer Complexes with Chlorine Atoms by Pulse Radiolysis of Carbon Tetrachloride Solutions

Nature ◽  
1967 ◽  
Vol 214 (5094) ◽  
pp. 1220-1221 ◽  
Author(s):  
R. E. BÜHLER ◽  
M. EBERT
Keyword(s):  
Charge Transfer ◽  
Carbon Tetrachloride ◽  
Pulse Radiolysis ◽  
Charge Transfer Complexes ◽  
Chlorine Atoms

Dielectric Polarisation of Some Heterocyclic Compounds and Role of π-Electrons in Solution

1977 ◽  
Vol 32 (9) ◽  
pp. 1074-1076
Author(s):  
A. N. Srivastava
Keyword(s):  
Molecular Structure ◽  
Charge Transfer ◽  
Carbon Tetrachloride ◽  
Heterocyclic Compounds ◽  
Charge Transfer Complexes ◽  
Electron Systems ◽  
Polar Solvents ◽  
Dielectric Polarisation

AbstractThe dielectric moments at 35 °C of quinoline, pyridine and isoquinoline dissolved in four non-polar solvents viz. benzene, carbon tetrachloride, cyclohexane and dioxane are found to increase in this sequence in accordance with the molecular structure of these solutes. The surprisingly high moments of quinoline and pyridine in carbon tetrachloride indicate the formation of charge transfer complexes in­ volving the π-electron systems of the solutes.

Sunlight assisted direct amide formation via a charge-transfer complex

2017 ◽  
Vol 53 (73) ◽  
pp. 10128-10131 ◽  
Author(s):  
Irit Cohen ◽  
Abhaya K. Mishra ◽  
Galit Parvari ◽  
Rachel Edrei ◽  
Mauricio Dantus ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Carbon Tetrachloride ◽  
Charge Transfer Complex ◽  
Photochemical Reactions ◽  
Charge Transfer Complexes ◽  
Amide Formation ◽  
A Charge

We report on the use of charge-transfer complexes between amines and carbon tetrachloride, as a novel way to activate the amine for photochemical reactions.

Dipole moments, charge-transfer parameters, and ionization potentials of the methyl-substituted benzene–tetracyanoethylene complexes

1970 ◽  
Vol 48 (2) ◽  
pp. 299-305 ◽  
Author(s):  
R. K. Chan ◽  
S. C. Liao
Keyword(s):  
Charge Transfer ◽  
Carbon Tetrachloride ◽  
Dipole Moments ◽  
Ionization Potentials ◽  
Charge Transfer Complexes ◽  
Variation Principle ◽  
Charge Transfer Transition ◽  
Transition Energies ◽  
Vertical Ionization Potentials ◽  
Transfer Parameters

The dipole moments of a series of charge-transfer complexes of methylbenzenes with tetracyano-ethylene in carbon tetrachloride solutions at 25 °C and the various parameters derived from Mulliken's theory have been evaluated. The energies of various states of the complexes were calculated via their relationships with the parameters, charge-transfer transition energies, and heats of formation of the complexes by means of the variation principle. Vertical ionization potentials of the donors were obtained from the calculated energies of the dative structures of the complexes. The dipole moments contributed from the charge-transfer interaction can also be reasonably interpreted as charge-transfer energies in terms of vertical ionization potentials of the donors.

Charge-transfer complexes in the scavenging by iodine of radicals formed on pulse radiolysis of cyclo hexane

1965 ◽  
Vol 287 (1408) ◽  
pp. 1-14 ◽  
Keyword(s):  
Charge Transfer ◽  
Extinction Coefficient ◽  
Pulse Radiolysis ◽  
Transient Absorption ◽  
Charge Transfer Complex ◽  
Charge Transfer Complexes ◽  
Concentrated Solutions ◽  
Neutral Radical ◽  
Radical Intermediates ◽  
Transient Spectra

Pulse radiolysis of solutions of iodine in cyclo hexane resulted in the formation of a transient absorption with wavelength maximum at 3300 Å. This transient spectrum was assigned to the C 6 H 12 ... I' charge-transfer complex. The spectrum and extinction coefficients of the complex over the wavelength range 2500 to 6500 Å were obtained, the coefficient at 3300 Å being 2025 1. mole -1 cm -1 . Hydrogen iodide in cyclo hexane gave rise to the same transient absorption. Pulse radiolysis of cyclo hexane and cyclo hexyl iodide alone gave rise to different transient spectra attributed to the cyclo hexyl radical, absorbing in the ultraviolet, extinction coefficient 3401. mole -1 cm -1 at 2550 Å and the C 6 H 11 .. .I* charge-transfer complex, absorption maximum 3900 A, extinction coefficient ~ 10 3 to 10 4 1. mole -1 cm -1 , respectively. During the course of the investigations rate constants were obtained for the following reactions: C 6 H 11 + I 2 C 6 H 11 I + I', k II = 7 x 10 9 1. mole -1 s -1 , 2C 6 H 12 ...I' -> 2C 6 H 12 + I 2 , k II = 1.06 x 10 10 1. mole -1 s -1 , or 21' -> I 2 , a C 6 H 10 + C 6 H 12 2C 6 H 11 k 11a + k 11b =2.5 x 10 9 1. mole -1 s -1 bC 12 H 22 Dilute solutions of iodine (10 -4 M) in cyclo hexane yielded experimental evidence for neutral radical intermediates only. There were, however, indications that ionic radical intermediates occur in more concentrated solutions ( > 10 -3 M). :

Magnetic properties of new charge-transfer complexes based on manganese porphyrins

1997 ◽  
Vol 90 (3) ◽  
pp. 407-413
Author(s):  
MARC KELEMEN ◽  
CHRISTOPH WACHTER ◽  
HUBERT WINTER ◽  
ELMAR DORMANN ◽  
RUDOLF GOMPPER ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Manganese Porphyrins
Sign in / Sign up

Export Citation Format

Share Document