PH-Dependent spin state population and 19F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex

Alexandra I. Gaudette; Agnes E. Thorarinsdottir; T. David Harris

doi:10.1039/c7cc08158h

PH-Dependent spin state population and ¹⁹F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex

Alexandra I. Gaudette, Agnes E. Thorarinsdottir, T. David Harris^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

An Fe^II complex that features a pH-dependent spin state population, by virtue of a variable ligand protonation state, is described. This behavior leads to a highly pH-dependent ¹⁹F NMR chemical shift with a sensitivity of 13.9(5) ppm per pH unit at 37 °C, thereby demonstrating the potential utility of the complex as a ¹⁹F chemical shift-based pH sensor.

Original language	English (US)
Pages (from-to)	12962-12965
Number of pages	4
Journal	Chemical Communications
Volume	53
Issue number	96
DOIs	https://doi.org/10.1039/c7cc08158h
State	Published - 2017

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/c7cc08158h

Cite this

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title = "PH-Dependent spin state population and 19F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex",

abstract = "An FeII complex that features a pH-dependent spin state population, by virtue of a variable ligand protonation state, is described. This behavior leads to a highly pH-dependent 19F NMR chemical shift with a sensitivity of 13.9(5) ppm per pH unit at 37 °C, thereby demonstrating the potential utility of the complex as a 19F chemical shift-based pH sensor.",

author = "Gaudette, {Alexandra I.} and Thorarinsdottir, {Agnes E.} and Harris, {T. David}",

note = "Funding Information: This research was funded by the Air Force Research Laboratory under agreement no. FA8650-15-5518 and Northwestern University. Funding Information: This research was funded by the Air Force Research Laboratory under agreement no. FA8650-15-5518 and Northwestern University. The U. S. Government is authorized to reproduce and distribute reprints for governmental purposes notwithstanding any copyright notation thereon. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of AFRL or the U. S. Government. T. D. H. thanks the Alfred P. Sloan Foundation, and A. E. T. acknowledges the Leifur Eiriksson Foundation for funding support. Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c7cc08158h",

language = "English (US)",

volume = "53",

pages = "12962--12965",

journal = "Chemical Communications",

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T2 - Via remote ligand protonation in an iron(ii) complex

AU - Gaudette, Alexandra I.

AU - Thorarinsdottir, Agnes E.

AU - Harris, T. David

N1 - Funding Information: This research was funded by the Air Force Research Laboratory under agreement no. FA8650-15-5518 and Northwestern University. Funding Information: This research was funded by the Air Force Research Laboratory under agreement no. FA8650-15-5518 and Northwestern University. The U. S. Government is authorized to reproduce and distribute reprints for governmental purposes notwithstanding any copyright notation thereon. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of AFRL or the U. S. Government. T. D. H. thanks the Alfred P. Sloan Foundation, and A. E. T. acknowledges the Leifur Eiriksson Foundation for funding support. Publisher Copyright: © 2017 The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - An FeII complex that features a pH-dependent spin state population, by virtue of a variable ligand protonation state, is described. This behavior leads to a highly pH-dependent 19F NMR chemical shift with a sensitivity of 13.9(5) ppm per pH unit at 37 °C, thereby demonstrating the potential utility of the complex as a 19F chemical shift-based pH sensor.

AB - An FeII complex that features a pH-dependent spin state population, by virtue of a variable ligand protonation state, is described. This behavior leads to a highly pH-dependent 19F NMR chemical shift with a sensitivity of 13.9(5) ppm per pH unit at 37 °C, thereby demonstrating the potential utility of the complex as a 19F chemical shift-based pH sensor.

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JO - Chemical Communications

JF - Chemical Communications

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PH-Dependent spin state population and ¹⁹F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex

Abstract

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CCDC 1574128: Experimental Crystal Structure Determination

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PH-Dependent spin state population and 19F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex

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CCDC 1574128: Experimental Crystal Structure Determination

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PH-Dependent spin state population and ¹⁹F NMR chemical shift: Via remote ligand protonation in an iron(ii) complex