Competitive fragmentation and electron loss kinetics of photoactivated silver cluster anions: Dissociation energies of Agn− (n=7–11)

1999 ◽  
Vol 111 (3) ◽  
pp. 938-949 ◽  
Author(s):  
Yang Shi ◽  
Vassil A. Spasov ◽  
Kent M. Ervin
Keyword(s):  
Silver Cluster ◽  
Electron Loss ◽  
Cluster Anions ◽  
Dissociation Energies ◽  
Kinetics Of

Experimental methods for measurement of bond dissociation energies and heats of formation of radicals

1951 ◽  
Vol 207 (1088) ◽  
pp. 5-13 ◽  
Keyword(s):  
Experimental Methods ◽  
Experimental Results ◽  
Heats Of Formation ◽  
Bond Dissociation Energies ◽  
Carrier Gas ◽  
Bond Dissociation ◽  
Dissociation Energies ◽  
Kinetics Of

The paper describes a pyrolytic method of investigating the kinetics of gaseous reactions in which toluene is used as a carrier gas. It is shown that the method is particularly suitable for the determination of bond dissociation energies. The scope of the method is illustrated by various examples. A list of bond dissociation energies obtained is given. The manner in which the experimental results obtained can be cross-checked, is indicated and illustrated by examples. The effects of various constitutional factors on the bond dissociation energies are discussed.

Dissociation Kinetics of Shallow-Acceptor-Hydrogen Pairs in Silicon

1989 ◽  
Vol 163 ◽  
Author(s):  
T. Zundel ◽  
J. Weber
Keyword(s):  
Schottky Diode ◽  
Reverse Bias ◽  
Temperature Dependent ◽  
Dissociation Kinetics ◽  
Shallow Acceptor ◽  
Dissociation Energies ◽  
Type Silicon ◽  
P Type ◽  
Kinetics Of

AbstractAnnealing of hydrogenated p-type silicon with a reverse bias applied to a Schottky diode allows us to precisely determine the dissociation frequency vA of shallow acceptor-hydrogen pairs (AH with A = B, Al, Ga, and In). The temperature dependent values of vA satisfy the relation vA = voAexp (-EA/kT), with voB = 2.8 . 1014 s-1, voAl = 3.1 . 1013 s-1, VoGa = 6.9 . 1013 s-1, and voIn = 8.4 · 1013 s-1. The dissociation energies EA depend only weakly on the acceptors: EB = (1.28±0.03)eV, EAl = (1.44±0.02) eV, EGa = (1.40±0.03) eV, and EIn = (1.42±0.05) eV. The dissociation frequency of BH pairs shifts to a lower value when H is replaced by the deuterium isotope.

Reaction Kinetics of Nitric Oxide on Size-Selected Silver Cluster Cations

2020 ◽  
Vol 124 (49) ◽  
pp. 26881-26888
Author(s):  
Masashi Arakawa ◽  
Masataka Horioka ◽  
Kento Minamikawa ◽  
Tomoki Kawano ◽  
Akira Terasaki
Keyword(s):  
Nitric Oxide ◽  
Reaction Kinetics ◽  
Silver Cluster ◽  
Kinetics Of

Adsorption Kinetics of Nitrogen Molecules on Size-Selected Silver Cluster Cations

2019 ◽  
Vol 233 (6) ◽  
pp. 759-770 ◽  
Author(s):  
Tomonori Ito ◽  
Masashi Arakawa ◽  
Yuki Taniguchi ◽  
Akira Terasaki
Keyword(s):  
Density Functional ◽  
Degrees Of Freedom ◽  
Ion Trap ◽  
Silver Cluster ◽  
Cluster Ions ◽  
Rate Coefficients ◽  
Adsorption Sites ◽  
Adsorption Processes ◽  
Kinetics Measurement ◽  
Kinetics Of

Abstract We present adsorption processes of dinitrogen on size-selected silver cluster cations, Agn+ (n = 1–10), studied by kinetics measurement using an ion trap. The cluster ions showed sequential adsorption of N2 molecules when the ion trap was cooled down to 105 K, excluding n = 8 and 9 that were exceptionally inactive at this temperature. Termolecular rate coefficients of each adsorption step are determined by analyzing time-dependent changes in the reactant and product ion signals. The first-step rate coefficients were found to increase exponentially from n = 1 to 7 due to increased internal degrees of freedom at larger sizes, which are favorable for accommodating the adsorption energy in a free cluster. In contrast, the adsorption rate turned to decrease for n > 7 due to weaker binding of dinitrogen as revealed by density-functional-theory (DFT) calculation. Adsorption sites on Agn+ are further discussed on the basis of the maximum number of adsorbing N2 molecules observed in the experiment.

Observation of multiply charged silver-cluster anions

2001 ◽  
Vol 16 (1) ◽  
pp. 65-68 ◽  
Author(s):  
A. Herlert ◽  
L. Schweikhard ◽  
M. Vogel
Keyword(s):  
Silver Cluster ◽  
Cluster Anions ◽  
Multiply Charged
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