Structure of complexes of lasalocid m-nitrobenzyl ester with monovalent metal cations

被引：3

作者：

Huczynski, Adam ^{[1
]}

Wawrzyn, Rafal ^{[1
]}

Brzezinski, Bogumil ^{[1
]}

Bartl, Franz ^{[2
]}

机构：

[1] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland

[2] Univ Med Berlin, Inst Med Phys & Biophys Charite, D-10117 Berlin, Germany

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2008年 / 889卷 / 1-3期

关键词：

Ionophores; m-Nitrobenzyl ester of lasalocid acid; Li+; Na+ and K+ complexes; Spectroscopy; ESI mass spectrometry; Semiempirical calculation;

D O I：

10.1016/j.molstruc.2008.01.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The complexes between m-nitrobenzyl ester of lasalocid acid (m-ELAS) and Li+, Na+ and K+ cations were synthesised and studied by ESI-MS, H-1 NMR, C-13 NMR and FT-IR spectroscopic methods. The ESI-MS spectra indicate that the ester forms stable complexes of exclusively 1: 1 stoichiometry, preferentially with Li+ cations. With increasing cone voltages, fragmentation of the respective complexes is observed. The results of the PM5 semiempirical calculations are in agreement with the spectroscopic data and allow visualisation of the structure of the m-ELAS complexes with monovalent cations. The structures of the complexes are discussed in detail. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：72 / 80

页数：9

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