Analysis of ruthenium carbonyl-porphyrin complexes: a comparison of matrix-assisted laser desorption/ionisation time-of-flight, fast-atom bombardment and field desorption mass spectrometry

被引：15

作者：

Frauenkron, M ^{[1
]}

Berkessel, A ^{[1
]}

Gross, JH ^{[1
]}

机构：

[1] Univ Heidelberg, Inst Organ Chem, D-69120 Heidelberg, Germany

来源：

EUROPEAN MASS SPECTROMETRY | 1997年 / 3卷 / 06期

关键词：

porphyrins; ruthenium carbonyl; porphyrin complexes; matrix-assisted laser desorption/ionisation; fast atom bombardment; field desorption;

D O I：

10.1255/ejms.177

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：

The mass spectrometric characterisation of ruthenium carbonyl-porphyrin complexes and the corresponding porphyrins is described. Matrix-assisted laser dcsorption/ionisation time-of-flight mass spectrometry (MALDI-TOF-MS), Past-atom bombardment mass spectrometry (FAB-MS), in both lon -resolution (LR) and high-resolution (HR) modes, and field desorption mass spectrometry (FD-RIS) have been used and compared in detail. MALDI-TOF-MS turned out to be ideal for rapid screening of potential synthetic pathways. FAB-MS proved to be especially useful in establishing elemental compositions bg HR measurement, Whereas the porphyrins gave very good molecular ion intensities, the ruthenium carbonyl complexes exhibited abundant carbon monoxide (CO) loss in MALDI-TOF-MS and still a measurable CO loss in FAB-MS. Only FD-MS yielded the molecular ion as the base peak of the spectrum in all cases. Optimised FD emitter heating conditions allow the remaining portion of the thermally-induced CO loss to be significantly reduced.

引用

页码：427 / 438

页数：12

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