化学
碱金属
离子
分子
电喷雾电离
脱水
水溶液中的金属离子
金属
无机化学
质谱法
定性无机分析
电喷雾
配合物的稳定常数
铜
电离
分析化学(期刊)
有机化学
色谱法
生物化学
摘要
The bonding of water molecules with univalent metal ions (M+) has been studied by electrospray ionization mass spectrometry (ESI-MS). Increasing the voltage between the skimmer cones (referred to as the cone voltage) induced the abstraction of water molecules from M+(H2O)n ions, for n equal to 1 or 2. The ions studied belonged to the alkali metals (M = H, Li, Na, K, Rb, and Cs) and to the copper family (M = Cu and Ag). The energies of water binding with the cations studied change in a different manner for alkali metal cations than for the Ag+, Cu+, and H+ ions. A new method has been presented to determine the bonding stability and the dehydration constants for M+(H2O)n clusters.
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