PHOTODISSOCIATION OF MAGNESIUM-ION MOLECULE COMPLEXES IN A REFLECTRON TIME-OF-FLIGHT MASS-SPECTROMETER

被引：57

作者：

YEH, CS ^{[1
]}

WILLEY, KF ^{[1
]}

ROBBINS, DL ^{[1
]}

DUNCAN, MA ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT CHEM,ATHENS,GA 30602

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1994年 / 131卷

基金：

美国国家科学基金会;

关键词：

ION MOLECULE COMPLEXES; ION SPECTROSCOPY; PHOTOCHEMISTRY; MAGNESIUM COMPLEXES; REFLECTRON TIME OF FLIGHT MASS SPECTROMETER;

D O I：

10.1016/0168-1176(93)03872-J

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Ion/molecule cluster complexes containing magnesium (e.g., Mg+-(CO2)x, Mg+-(H2O)x) are generated in a pulsed nozzle cluster source. Specific ions are size selected from the source distribution with a reflectron time-of-flight mass spectrometer for studies of their photodissociation dynamics. Photoexcitation of these complexes near the Mg+ (2S --> 2P) resonance line causes a variety of novel photochemistry, ranging from simple ligand ejection, to metal insertion, to metal-ligand charge exchange. These reactions arc first observed in the single molecule complexes, and they persist in larger aggregates with more extensive solvation. Excitation spectra probe the energy dependence of the photochemistry and they provide information on the structures of the ion/molecule complexes.

引用

页码：307 / 317

页数：11

共 57 条

[1] RECOMBINATION OF BR2-PHOTODISSOCIATED WITHIN MASS SELECTED IONIC CLUSTERS [J].