Survey of the gas-phase negative ion kinetics of inorganic molecules. Electron attachment reactions

Effect of NO 2 on Particle Formation in SO 2 /H 2 O/Air Mixtures by Ion-Induced and Homogeneous Nucleation

“…Schematic diagram of the experimental system for particle production by ®-ray radiolysis. (Caledonia 1975). Large ion clusters, that is, hydrated ions and solvated ions, act as nuclei in ion-induced nucleation.…”

“…Species of ions formed by both mechanisms depend on the electron af nity and positron af nity of gas molecules. For the negative hydrated ions, electron attachment changes from H 2 O to SO 2 by the addition of SO 2 , but electrical mobility at SO 2 addition becomes somewhat smaller than those at zero SO 2 because the electron af nity of SO 2 is higher than that of H 2 O (Caledonia 1975). For the positive hydrated ions, ion species do not change with the addition of SO 2 because the positron af nity of SO 2 is similar to that of H 2 O.…”

Ultrafast dynamics of temporary anions probed through the prism of photodetachment

“…It is not the aim here to review this body of work, which is extensive and spans several decades; instead the reader is directed to several excellent reviews and recent works that highlight the breath and versatility of electron impact studies. [9][10][11][12][13][14][15][16][17][18][19][20] The main purpose of the present review is to outline a different approach to studying anion resonances, based on photoexcitation rather than electron impact. A key attribute of photoexcitation is that it can be extended to the time-domain, providing a new and versatile handle on probing the nonadiabatic dynamics of the primary events following electron capture.…”

Phenomena in gases and plasmas with negative ions

“…Следует заметить, что и здесь главным параметром задачи остается величина E/N. Конкретные расчеты с учетом описанных выше эффектов выполнены для многих электроотрицательных газов: О 2 [16], возду-ха [31], SF 6 и смесей SF 6 :N 2 [35,36], смесей F 2 :He [37].…”

“…Подвижность тепловых электронов в NHj в зависимости от плотности газа [50]. 1 -N О, (#см~3) = 4,86·10 19 (2), 9,72 (3), 14,6 (4), 19,4 (5) и 24,3 (6) как было показано в [52], ситуация здесь более сложная. Диффузионный поток в этом случае равен v a и v d -частоты образования и разрушения неста-бильных ионов, w е и w i -скорости дрейфа электро-нов и ионов.…”