The sign preference in sulfuric acid nucleation

被引：23

作者：

Kurten, Theo ^{[1
]}

Ortega, Ismael K. ^{[1
]}

Vehkamaki, Hanna ^{[1
]}

机构：

[1] Univ Helsinki, Dept Phys, Div Atmospher Sci & Geophys, FI-00014 Helsinki, Finland

来源：

JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM | 2009年 / 901卷 / 1-3期

基金：

芬兰科学院;

关键词：

Nucleation; Sign preference; Atmospheric chemistry; Sulfuric acid; Ion clusters; PARTICLE FORMATION; EXPERIMENTAL THERMODYNAMICS; ATMOSPHERIC CONDITIONS; ELECTRON-AFFINITIES; IONS; CLUSTERS; AEROSOL; H2SO4; WATER; GROWTH;

D O I：

10.1016/j.theochem.2009.01.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The binding of sulfuric acid to a series of anions and cations of varying chemical complexity is studied using quantum chemical methods. Sulfuric acid is bound much more strongly to anions than cations, as expected from structural and general chemical considerations, and previous computational Studies on charged sulfuric acid-water clusters. The results are likely to explain the sign effect observed in atmospheric nucleation phenomena, and indicate that the first steps of ion-induced nucleation are controlled by the specific chemical interactions between the core ion and the condensing molecules rather than by general physical (e.g. electrostatic) effects. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：169 / 173

页数：5

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