Observation of translational-to-vibrational energy transfer in charge-transfer reactions of CO+ with CO using crossed-beam techniques

1991 ◽  
Vol 69 (5) ◽  
pp. 581-583
Author(s):  
Stephen L. Howard ◽  
Jaiming Wang ◽  
Alan L. Rockwood

The crossed-beam method was used to investigate the charge-transfer reaction of CO+ (X2Σ+, ν = 0) with CO (X1Σ+, ν = 0). Scattering of CO+ demonstrates that several vibrational states are populated. At a collisional energy of 1.1 eV, transfer of translational energy to vibrational energy is shown to occur by changes of an even number of vibrational quanta.

1986 ◽  
Vol 5 (6) ◽  
pp. 351-366 ◽  
Author(s):  
T. H. Tran-Thi ◽  
A. M. Koulkes-Pujo ◽  
J. C. Mialocq ◽  
G. Folcher

The influence of viscous H2O-Dextran media on two charge transfer reactions has been investigated using laser photolysis coupled with pico and nanosecond time resolved absorption spectroscopy.In the first case, a charge-transfer reaction from a solute (potassium ferrocyanide) to the solvent was studied and the electron solvation dynamics was followed. A solvation time delay, depending on the polymer concentration, is observed which indicates that electrons remain quasi-free for longer periods in these media.In the second case, the quenching process of the triplet state of an excited metallo porphyrin(ZnP4+) by an electron acceptor, methylviologen chloride (MV2+, 2 Cl–) is studied. The measured triplet quenching rate constant values decrease with increasing dextran concentration, but remain higher than those calculated, taking into account a simple viscosity effect. This result is explained in terms of a competition between a decay of the diffusion rate constants of (ZnP4+)* and MV2+ due to a viscosity effect and an enhanced cage effect around the ions (ZnP4+*, MV2+). Once formed, this last effect favours the charge transfer reaction.


Author(s):  
E.E. Ferguson ◽  
Jane M. Van Dorenai ◽  
A.A. Viggiano ◽  
Robert A. Morris ◽  
John F. Paulson ◽  
...  

1975 ◽  
Vol 53 (5) ◽  
pp. 680-687 ◽  
Author(s):  
Guy J. Collin ◽  
Pierre Ausloos

The [Formula: see text] ions formed in the photoionization of cyclohexane (resonance lines of argon: 11.6–11.8 eV) react with cyclic (C3 and C4) and unsaturated hydrocarbons by H2 transfer. This reaction is quantitative with propene, 1-butene, 1-pentene, 1,3-butadiene, and isobutene. This transfer is efficient only if there is a terminal double bond. There is ring opening with the C3 and C4 hydrocarbons. H atom transfer reactions are also observed between [Formula: see text] ions and several compounds and the structure of the radical formed in such a reaction is determined by chemical analysis. With cis-2-butene, there is only charge transfer reaction.


1991 ◽  
Vol 69 (5) ◽  
pp. 584-587 ◽  
Author(s):  
Stephen L. Howard

Results of the crossed-beam investigation of the symmetric charge-transfer reaction of N2+ (X2Σg, ν = 0) with N2 (X1Σg, ν = 0) near 10 eV collision energy showed a symmetrically resonant channel with Δν = 0 as well as a series of inelastically scattered channels. Upon deconvolution to remove the Δν = 0 contribution, the inelastic Δν = 1, 2, and 4 channels were readily observed.


2000 ◽  
Vol 104 (45) ◽  
pp. 10336-10346 ◽  
Author(s):  
Skip Williams ◽  
Anthony J. Midey ◽  
Susan T. Arnold ◽  
Robert A. Morris ◽  
Albert A. Viggiano ◽  
...  

2019 ◽  
Vol 6 (6) ◽  
pp. 1668-1672 ◽  
Author(s):  
Zhidong Huang ◽  
Lei Shang ◽  
Huiying Qi ◽  
Zhe Zhao ◽  
Baofeng Tu ◽  
...  

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