Electrospray ionization mass spectrometry (ESI-MS) as a useful tool for fast evaluation of anion and cation complexation abilities of a cyclam derivative

被引：7

作者：

Alfonso, I

Astorga, C

Gotor, V ^{[1
]}

机构：

[1] Univ Oviedo, Fac Quim, Dept Quim Organ & Inorgan, E-33006 Oviedo, Spain

[2] Univ Jaume 1, Dept Quim Inorgan & Organ, E-12071 Castellon de La Plana, Spain

来源：

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2005年 / 53卷 / 1-2期

关键词：

anion coordination; cyclam; electrospray ionization mass spectrometry; macrocycles; metal coordination; supramolecular chemistry;

D O I：

10.1007/s10847-005-1827-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrospray ionization mass espectrometry (ESI-MS) has been used for the study of a cyclam derivative noncovalent interactions. At acidic pH, diprotonated macrocycle bound to different anionic species were observed. The selectivity shown by competitive experiments is rationalized with the help of semiempirical theoretical calculations. At basic pH, the base peak corresponded to the macrocycle-alkaline metal complexes, and again competition experiments showed different binding strength. Finally, experiments carried out in the presence of transition metal salts allowed the detection of the complexes present in the mixture and revealed their different kinetic behavior.

引用

页码：131 / 137

页数：7

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