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Following a Silent Metal Ion: A Combined X-ray Absorption and Nuclear Magnetic Resonance Spectroscopic Study of the Zn 2+ Cation Dissipative Translocation between Two Different Ligands.

Authors :
Frateloreto F
Tavani F
Di Berto Mancini M
Del Giudice D
Capocasa G
Kieffer I
Lanzalunga O
Di Stefano S
D'Angelo P
Source :
The journal of physical chemistry letters [J Phys Chem Lett] 2022 Jun 23; Vol. 13 (24), pp. 5522-5529. Date of Electronic Publication: 2022 Jun 13.
Publication Year :
2022

Abstract

The dissipative translocation of the Zn <superscript>2+</superscript> ion between two prototypical coordination complexes has been investigated by combining X-ray absorption and <superscript>1</superscript> H NMR spectroscopy. An integrated experimental and theoretical approach, based on state-of-the-art Multivariate Curve Resolution and DFT based theoretical analyses, is presented as a means to understand the concentration time evolution of all relevant Zn and organic species in the investigated processes, and accurately characterize the solution structures of the key metal coordination complexes. Specifically, we investigate the dissipative translocation of the Zn <superscript>2+</superscript> cation from hexaaza-18-crown-6 to two terpyridine moieties and back again to hexaaza-18-crown-6 using 2-cyano-2-phenylpropanoic acid and its para -chloro derivative as fuels. Our interdisciplinary approach has been proven to be a valuable tool to shed light on reactive systems containing metal ions that are silent to other spectroscopic methods. These combined experimental approaches will enable future applications to chemical and biological systems in a predictive manner.

Details

Language :
English
ISSN :
1948-7185
Volume :
13
Issue :
24
Database :
MEDLINE
Journal :
The journal of physical chemistry letters
Publication Type :
Academic Journal
Accession number :
35695810
Full Text :
https://doi.org/10.1021/acs.jpclett.2c01468