Charge-Transfer Interactions and Electron-Transfer-Activated Reactions of Organometallic Complexes

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.

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Measurement and Analysis of Triboelectric Surface Charge

Physics and High Technology ◽

10.3938/phit.30.002 ◽

2021 ◽

Vol 30 (1/2) ◽

pp. 7-11

Author(s):

Jinhong PARK ◽

Jinhyeok CHOI ◽

Sang Hyeok PARK ◽

Minbaek LEE

Keyword(s):

Electron Transfer ◽

Charge Transfer ◽

Surface Properties ◽

Elastic Moduli ◽

Surface Charges ◽

Contact Electrification ◽

Measurement And Analysis ◽

Different Types ◽

Triboelectric Charging ◽

Method Of Measurement

Contact electrification occurs when two isolated objects come into contact. Such a phenomenon led humans to first realization of the existence of electricity. Until now, the main causes of the triboelectric charging phenomenon have generally been thought to be the transfer of electrons, ions, and materials. This article, however, is limited to electron transfer on the surface, which is regarded as a general case not limited to specific situations. The contact between two objects occurs between the two surfaces; therefore, the surface properties of the material under examination are the most important properties in triboelectric charge transfer. The surface properties may include the types of materials in contact, their energy states, the roughnesses of their surfaces, and their elastic moduli. In this regard, we introduce here the current understanding of the energy band structures involved in the different types of materials, the method of measurement, an analysis of surface charges, and related applications.

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Photoinduced versus spontaneous host–guest electron transfer within a MOF and chromic/luminescent response

Inorganic Chemistry Frontiers ◽

10.1039/d1qi01079d ◽

2021 ◽

Author(s):

Gen Li ◽

Shuai-Liang Yang ◽

Wan-Shan Liu ◽

Meng-Yue Guo ◽

Xiao-Yan Liu ◽

...

Keyword(s):

Electron Transfer ◽

Charge Transfer ◽

Turn On ◽

Luminescent Sensing

The MOF shows charge-transfer sensitized Eu(iii) emission and spontaneous/photoinduced guest-to-host electron transfer, which allow chromic and luminescent sensing of NH3 (luminescence turn-off) and O2 (luminescence turn-on).

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