Tuning Solvent Composition to Enhance the Stability of Metal Clusters in Mass Spectrometry

• 作者: Yingzi Han Yihuang Jiang Jing Jeanne Yang Shuichao Lin Zichao Tang Lansun Zheng
• 来源期刊: 结构化学
• 年，卷（期）: 2022,（4）
• 页码范围: 34-39
• 页数: 6页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2022-0032

摘要

Electrospray ionization time-of-flight mass spectrometry(ESI-TOF-MS)has been recognized as a powerful technique for studying metal clusters'chemical composition and reaction mechanisms.It is a great chal-lenge in mass spectrometry analysis to maintain the metal cluster molecules intact without fragmentation,which is achieved in this work by using mixed solvents to change the interaction between cluster molecules and solvent molecules,further affecting the fragmentation behaviors of the metal cluster in MS.Theoretical analysis reveals that the stability of the[(C)Au6Ag2(C18H14ONP)6]4+cluster in ESI-TOF-MS is related to the strength of the chemical bonds between its own atoms and the bonding between the solvent and the cluster molecules.