High resolution mass spectrometry on time-of-flight (TOF) and ion trap (IT) mass spectrometers is used for the qualitative speciation of a heterodimetallic triple-stranded helicate [EuFe(L 1 ) 3 ](CIO 4 ) 5 and a toroidal complex [Ni 3 (L 2 ) 3 ](CIO 4 ) 6 (= circular single-stranded helicate) disso
Application of Electrospray Mass Spectrometry for Characterizing Supramolecular Coordination Complexes
✍ Scribed by Gérara Hopfgartner; Jack D. Henion; Claude Piguet; Alan F. Williams
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- German
- Weight
- 407 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The Electrospray Mass Spectrometry (ES‐MS) of eight different supramolecular complexes shows that the molecular peaks of the desolvated multiply charged cations can be recorded more easily than by Fast‐Atom‐Bom‐bardment Mass Spectrometry (FAB‐MS) measurements of similar compound. The preliminary application of the ES‐MS technique to self‐assembled helical complexes obtained from ligands L^3^ to L^8^ with various metal ions (Cu, Co, Eu, Tb) indicates that ES mass spectra qualitatively reflect the species present MeCN solution.
📜 SIMILAR VOLUMES
A series of supramolecular complexes of various cycludextrins (CDs) was studied. Among the 13 CD complexes synthesized, 11 could be characterizied by electrospray ionization mass spectrometry. Different supramolecular entities, with host: guest ratios of 1 : 1 and 2: 1, were observed.
## Abstract The self‐assembly of the terdentate ligands 1a–h, based on terpyridine‐like binding sites, with octahedrally coordinated metal ions, such as Fe^II^, Co^II^, Cu^II^, Zn^II^, Cd^II^, Hg^II^ and Pb^II^, leads to the formation of the supramolecular grid‐type complexes 2a–c(M^II^), 3d–g(M^II
Mass spectrometry (MS) with electrospray ionization (ESI) has shown utility for studying noncovalent protein complexes, as it offers advantages in sensitivity, speed, and mass accuracy. The stoichiometry of the binding partners can be easily deduced from the molecular weight measurement. In many exa
Mass spectrometry-based methodologies span the vast expanse of drug discovery. Both electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI) support proteomics-based research projects by identifying proteins separated and isolated by polyacrylamide gel electrophoresis. M
## Abstract In this paper we describe the application of electrospray time‐of‐flight mass spectrometry (ESI‐TOFMS) to structural elucidation of the fragment ions formed from a range of natural and synthetic allelochemical derivatives. The extensive mass spectrometric characterisation of ten non‐glu