Coordination of Carbon Dioxide to the Lewis Acid Site of a Zinc-Substituted Polyoxometalate and Formation of an Adduct Using a Polyoxometalate–2,4,6-Trimethylpyridine Frustrated Lewis Pair

Bo Chen, Ronny Neumann

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The coordination of CO2 to Lewis bases is well-known; however, its binding to Lewis acids is much less common. The ligation of CO2 to a zinc-substituted Wells–Dawson type polyoxometalate yielded [(n-C8H17)4N]82-P2W17O61Zn(CO2)], which was studied by variable temperature 1H NMR, 13C NMR, and 31P NMR spectroscopy from room temperature to 201 K. The spectra were analyzed in consideration of predicted “end-on” coordination, POM-Zn-O-C-O, and “side-on” coordination where in addition an adjacent basic oxygen atom in the polyoxometalate binds the carbon atom of CO2. After adding 2,4,6-trimethypyridine into the solution, a plausible adduct, POM-CO2-2,4,6-trimethypyridine, was observed.

Original languageEnglish
Pages (from-to)791-794
Number of pages4
JournalEuropean Journal of Inorganic Chemistry
Volume2018
Issue number6
DOIs
Publication statusPublished - Feb 14 2018

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Lewis Acids
Carbon Dioxide
Zinc
Lewis Bases
Nuclear magnetic resonance
Atoms
Nuclear magnetic resonance spectroscopy
Carbon
Oxygen
Temperature
polyoxometalate I

Keywords

  • Carbon dioxide
  • Coordination modes
  • Lewis pairs
  • Noncovalent interactions
  • Polyoxometalates

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

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title = "Coordination of Carbon Dioxide to the Lewis Acid Site of a Zinc-Substituted Polyoxometalate and Formation of an Adduct Using a Polyoxometalate–2,4,6-Trimethylpyridine Frustrated Lewis Pair",
abstract = "The coordination of CO2 to Lewis bases is well-known; however, its binding to Lewis acids is much less common. The ligation of CO2 to a zinc-substituted Wells–Dawson type polyoxometalate yielded [(n-C8H17)4N]8[α2-P2W17O61Zn(CO2)], which was studied by variable temperature 1H NMR, 13C NMR, and 31P NMR spectroscopy from room temperature to 201 K. The spectra were analyzed in consideration of predicted “end-on” coordination, POM-Zn-O-C-O, and “side-on” coordination where in addition an adjacent basic oxygen atom in the polyoxometalate binds the carbon atom of CO2. After adding 2,4,6-trimethypyridine into the solution, a plausible adduct, POM-CO2-2,4,6-trimethypyridine, was observed.",
keywords = "Carbon dioxide, Coordination modes, Lewis pairs, Noncovalent interactions, Polyoxometalates",
author = "Bo Chen and Ronny Neumann",
year = "2018",
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language = "English",
volume = "2018",
pages = "791--794",
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TY - JOUR

T1 - Coordination of Carbon Dioxide to the Lewis Acid Site of a Zinc-Substituted Polyoxometalate and Formation of an Adduct Using a Polyoxometalate–2,4,6-Trimethylpyridine Frustrated Lewis Pair

AU - Chen, Bo

AU - Neumann, Ronny

PY - 2018/2/14

Y1 - 2018/2/14

N2 - The coordination of CO2 to Lewis bases is well-known; however, its binding to Lewis acids is much less common. The ligation of CO2 to a zinc-substituted Wells–Dawson type polyoxometalate yielded [(n-C8H17)4N]8[α2-P2W17O61Zn(CO2)], which was studied by variable temperature 1H NMR, 13C NMR, and 31P NMR spectroscopy from room temperature to 201 K. The spectra were analyzed in consideration of predicted “end-on” coordination, POM-Zn-O-C-O, and “side-on” coordination where in addition an adjacent basic oxygen atom in the polyoxometalate binds the carbon atom of CO2. After adding 2,4,6-trimethypyridine into the solution, a plausible adduct, POM-CO2-2,4,6-trimethypyridine, was observed.

AB - The coordination of CO2 to Lewis bases is well-known; however, its binding to Lewis acids is much less common. The ligation of CO2 to a zinc-substituted Wells–Dawson type polyoxometalate yielded [(n-C8H17)4N]8[α2-P2W17O61Zn(CO2)], which was studied by variable temperature 1H NMR, 13C NMR, and 31P NMR spectroscopy from room temperature to 201 K. The spectra were analyzed in consideration of predicted “end-on” coordination, POM-Zn-O-C-O, and “side-on” coordination where in addition an adjacent basic oxygen atom in the polyoxometalate binds the carbon atom of CO2. After adding 2,4,6-trimethypyridine into the solution, a plausible adduct, POM-CO2-2,4,6-trimethypyridine, was observed.

KW - Carbon dioxide

KW - Coordination modes

KW - Lewis pairs

KW - Noncovalent interactions

KW - Polyoxometalates

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U2 - 10.1002/ejic.201701293

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