scholarly journals Electron Transfer Resulting from Excitation of Contact Charge Transfer Complexes of Some Styrene Derivatives and Oxygen. The Role of Oxygen as an Electron Acceptor

1989 ◽  
Vol 62 (12) ◽  
pp. 3863-3868 ◽  
Author(s):  
Masanobu Kojima ◽  
Hirochika Sakuragi ◽  
Katsumi Tokumaru
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Electron Acceptor ◽  
Charge Transfer Complexes ◽  
Styrene Derivatives

The dehydrogenation of 1,4-dihydronaphthalene by tetrachloro-p-benzoquinone

1976 ◽  
Vol 54 (14) ◽  
pp. 2261-2265 ◽  
Author(s):  
Z. M. Hashish ◽  
I. M. Hoodless
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Reaction Rate ◽  
Second Order ◽  
Charge Transfer Complexes ◽  
Ion Transfer ◽  
Hydride Ion ◽  
Rate Determining Step ◽  
Hydride Ion Transfer

The dehydrogenation of 1,4-dihydronaphthalene by tetrachloro-p-benzoquinone in phenetole solution has been investigated. The present work does not fully confirm earlier studies which report that the reaction follows second-order kinetics and that the hydride ion transfer is rate determining. In the investigations described in this paper second-order kinetics are only observed in the later stages of the reaction and a 1:1 stoichiometry of the reactants in the process is not obtained. Substitution of tritium in the 1,4-positions of the hydrocarbon appears to not significantly affect the reaction rate. The present results indicate that charge-transfer complexes are formed in the reaction and it is suggested that electron transfer within these complexes could be the rate-determining step in the dehydrogenation.

Self-Assembly of Alkali Lignin in Tetrahydrofuran

2012 ◽  
Vol 550-553 ◽  
pp. 57-61
Author(s):  
Hao Li ◽  
Yong Hong Deng ◽  
Kai Huang
Keyword(s):  
Charge Transfer ◽  
Electrostatic Interaction ◽  
Self Assembly ◽  
The Self ◽  
Charge Transfer Complexes ◽  
Layer By Layer ◽  
Alkali Lignin ◽  
Higher Temperature ◽  
Effects Of Temperature

Alkali lignin (AL) was used as a polyanion to form layer-by-layer self-assembled film with PDAC as a polycation. The effects of temperature and concentration on the adsorption characteristics of AL were investigated. Iodine was added into AL solutions to study the role of π-π interaction in self-assembly of AL and PDAC. Results show that the self-assembly of AL/PDAC is mainly driven by π-π interaction and electrostatic interaction. A higher temperature or a larger concentration can enhance the aggregation of lignin. I2 can form lignin–iodine charge–transfer complexes with AL to reduce the degree of aggregation of AL, so the adsorbed amount of AL decreases significantly with increasing iodine contents.

Semiconductive donor promoted photochromism of iodoplumbate hybrids

2020 ◽  
Vol 7 (24) ◽  
pp. 4865-4871
Author(s):  
Junju Shen ◽  
Xiaoli Kang ◽  
Pengfei Hao ◽  
Yunlong Fu
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Photoinduced Electron Transfer ◽  
Negative Role

The entirely different photochromic behaviors of two iodoplumbate hybrids indicate the driving role of excitation of the PbI3− chain donor and the negative role of charge transfer in photoinduced electron transfer and photochromism.

DESCRIPTION OF THE Tl, Pb and Bi CUPRATE HIGH-Tc SUPERCONDUCTORS AS INTERCALATION COMPOUNDS

1989 ◽  
Vol 03 (09) ◽  
pp. 723-728 ◽  
Author(s):  
R.S. MARKIEWICZ ◽  
B.C. GIESSEN
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Intercalation Compounds ◽  
Acceptor Site ◽  
High Tc Superconductors ◽  
High Tc ◽  
Stage Number ◽  
Graphite Intercalation ◽  
Superconducting Oxides

Treating the new superconducting oxides as intercalation compounds, especially, as analogues to graphite intercalation compounds (GIC), clarifies the understanding of a number of their properties; in this description, the ratio of the number of cuprate layers per intercalant unit is equivalent to the stage number in GIC’s. In particular, the role of charge transfer (presumably, electron transfer from oxygen in the [Formula: see text] sheets to an acceptor site located in the intercalant) in optimizing Tc can be well discussed in these terms, leading to the prediction that the curve of Tc versus n, the number of [Formula: see text] layers, must have a maximum at a specific value of n.

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