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学科主题: 分析化学
题名: Studies of gas-phase fragmentation reactions of [Pd(PPh3)(2)(OCOR)](+) by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry
其他题名: 用电喷雾离子化傅立叶质谱研究 [Pd(PPh3)2(OCOR)]I气相离子反应
作者: Qian R(钱荣) ; Guo H(郭浩) ; Liao YX(廖远熹) ; Wang HY(王昊阳) ; Zhang X(张祥) ; Guo YL(郭寅龙)
通讯作者: 郭寅龙
刊名: Rapid Commun. Mass Spectrom.
发表日期: 2006
卷: 20, 期:4, 页:589-594
收录类别: SCI
部门归属: 上海有机所上海质谱中心; 上海有机所有机金属化学国家重点实验室
英文摘要: Gas-phase fragmentation reactions of [Pd(PPh3)(2)(OCOR)](+) (R = H, CH3, CD3, C2H5, n-C3H7, n-C6H13 and C6H5) were studied by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICRMS). In sustained off-resonance irradiation collision-activated dissociation (SORI-CAD) experiments, the complexes all dissociated to yield the same product ion at m/z 629.1. We propose that the fragmentation pathway occurs through the elimination of RCOOH and a palladium(IV) hydride intermediate. Semi-empirical (PM3) calculations shed light on the mechanism for the fragmentation reactions of these compounds. The results of deuterium-labeling experiments indicate that the protons of RCOOH lost from [Pd(PPh3)2(OCR)](+) originate from the phenyl in the triphenylphosphine ligand. [Pd(PPh3)(2)(OCOH)](+) undergoes two competitive pathways in SORICAD experiments, one of which is similar to that of [Pd(PPh3)(2)(OCOR)](+) (R = CH3, CD3, C2H5, n-C3H7, n-C6H13 and C6H5), and the other involves decarboxylation. The present study demonstrates that MS could play an important role in studying the gas-phase chemistry of palladium hydrides. Copyright (c) 2006 John Wiley & Sons, Ltd.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000235485800010
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/19926
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Qian R,Guo H,Liao YX,et al. Studies of gas-phase fragmentation reactions of [Pd(PPh3)(2)(OCOR)](+) by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry[J]. Rapid Commun. Mass Spectrom.,2006,20(4):589-594.
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