The role of Rydberg states in photoionization of NO2and (NO+, O−) ion pair formation induced by one VUV photon

2013 ◽  
Vol 139 (4) ◽  
pp. 044311 ◽  
Author(s):  
S. Marggi Poullain ◽  
K. Veyrinas ◽  
P. Billaud ◽  
M. Lebech ◽  
Y. J. Picard ◽  
...  
Keyword(s):  
Rydberg States ◽  
Ion Pair ◽  
Pair Formation ◽  
Ion Pair Formation

scholarly journals Ion-Pair Formation of [CoIII(pn)2(Cl)(L)2+····· I−] by Aqueous-Organic Solvent Medium Enhanced Photoreduction: A Perspective Regression Analysis

2020 ◽  
Vol 32 (6) ◽  
pp. 1379-1383
Author(s):  
L. Devaraj Stephen ◽  
S.G. Gunasekaran ◽  
M. Soundarrajan
Keyword(s):  
Charge Transfer ◽  
Organic Solvent ◽  
High Performance ◽  
Ion Pair ◽  
Pair Formation ◽  
The Novel ◽  
Solvent Medium ◽  
Ion Pair Formation ◽  
Iodide Ion

Reduction of CoIII centre in CoIII(pn)2(Cl)(L)2+ with reference to solvent medium and structure of the complex via ion pair charge transfer (IPCT) paves way for the novel reaction mechanism route. In this work, we prepared, characterized and photoinduced the complexes CoIII(pn)2(Cl)(L)2+ (where L = RC6H4NH2, R = m-OMe, p-F and H) in the presence of iodide ion. Quantum yield for 254 nm excitation of CoIII(pn)2(Cl)(L)2+(where L = RC6H4NH2, R = m-OMe, p-F and H) in water-1,4-dioxane mixtures (Diox = 0, 5, 10, 15, 20, 25, and 30% (v/v)) were also derived for all the complexes in presence of added iodide ion, in which CoIII was reduced via [CoIII(pn)2(Cl)(L)2+….. I-] ion-pair formation. The photoinduced state is ion-pair charge transfer transition state and the quantum efficiency is solvent reliant and they are non-reactive. That is, change in ΦCo(II) is dependable with observed increase in xDiox of the mixed solvent medium. Correlation analysis using empirical parameters εr, Y, ET N and DNN provides a model to understand the solvent medium participation and interaction. This work gains an insight into the role of aqueous-organic solvent medium in CoIII(pn)2(Cl)(L)2+ photoreduction, which may be of great significance in developing novel approaches in the field of high performance catalysis

Ion-pair formation in electron recombination with H 3 +

2006 ◽  
Vol 364 (1848) ◽  
pp. 2999-3005 ◽  
Author(s):  
Åsa Larson ◽  
Johanna Roos ◽  
Ann E Orel
Keyword(s):  
Cross Section ◽  
Potential Energy Surfaces ◽  
Rydberg States ◽  
Ion Pair ◽  
Pair Formation ◽  
Two Dimensions ◽  
Electron Recombination ◽  
Electron Collisions ◽  
Ion Pair Formation ◽  
Energy Surfaces

The process of resonant ion-pair formation following electron collisions with is studied. The relevant diabatic potential energy surfaces and the electronic couplings between these surfaces are calculated. The reaction is then described using a time-dependent approach with wave packets propagating on the coupled potentials. In order to describe the reaction, it is found necessary to include at least two dimensions in the model. The effects of the Rydberg states on the cross-section for this process are discussed.

Extraction of organic acids by ion-pair formation with tri-n-octylamine

1985 ◽  
Vol 178 ◽  
pp. 189-195 ◽  
Author(s):  
M. Puttemans ◽  
L. Dryon ◽  
D.L. Massart
Keyword(s):  
Organic Acids ◽  
Ion Pair ◽  
Pair Formation ◽  
Ion Pair Formation
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