Research output: Contribution to journal › Article
Resonance Electron Attachment to Tetracyanoquinodimethane. / Pshenichnyuk, S.A.; Modelli, A.; Lazneva, E.F.; Komolov, A.S.
In: Journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment & general theory, Vol. 118, No. 34, 2014, p. 6810-6818.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Resonance Electron Attachment to Tetracyanoquinodimethane
AU - Pshenichnyuk, S.A.
AU - Modelli, A.
AU - Lazneva, E.F.
AU - Komolov, A.S.
PY - 2014
Y1 - 2014
N2 - Resonance interaction of low energy (0-14 eV) electrons with gas-phase 7,7,8,8-tetracyanoquinodimethane (TCNQ) was investigated using dissociative electron attachment (DEA) spectroscopy. Spectral features associated with formation of long-lived TCNQ molecular negative ions are detected at incident electron energies of 0.3, 1.3, and 3.0 eV. A variety of negative fragments is observed around 4 eV, and slow (microseconds) dissociative decay channels are detected at about 3 eV, in competition with simple re-emission of the captured electron. The average electron detachment time from the TCNQ(-) negative ions formed at 3 eV was evaluated to be 250 mu s. The experimental findings are interpreted with the support of density functional theory (DFT) calculations of the empty orbital energies, scaled with an empirical equation, and by comparison with earlier electron transmission spectroscopy (ETS) data. A possible mechanism for the unusual formation of long-lived molecular anions above zero energy (up to 3 eV) is b
AB - Resonance interaction of low energy (0-14 eV) electrons with gas-phase 7,7,8,8-tetracyanoquinodimethane (TCNQ) was investigated using dissociative electron attachment (DEA) spectroscopy. Spectral features associated with formation of long-lived TCNQ molecular negative ions are detected at incident electron energies of 0.3, 1.3, and 3.0 eV. A variety of negative fragments is observed around 4 eV, and slow (microseconds) dissociative decay channels are detected at about 3 eV, in competition with simple re-emission of the captured electron. The average electron detachment time from the TCNQ(-) negative ions formed at 3 eV was evaluated to be 250 mu s. The experimental findings are interpreted with the support of density functional theory (DFT) calculations of the empty orbital energies, scaled with an empirical equation, and by comparison with earlier electron transmission spectroscopy (ETS) data. A possible mechanism for the unusual formation of long-lived molecular anions above zero energy (up to 3 eV) is b
U2 - 10.1021/jp505841c
DO - 10.1021/jp505841c
M3 - Article
VL - 118
SP - 6810
EP - 6818
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
SN - 1520-6106
IS - 34
ER -
ID: 7018985