NMR characterization of bronsted acid sites in faujasitic zeolites with use of perdeuterated trimethylphosphine oxide

Murthy D. Karra; Kevin J. Sutovich; Karl T. Mueller

doi:10.1021/ja017172w

NMR characterization of bronsted acid sites in faujasitic zeolites with use of perdeuterated trimethylphosphine oxide

Murthy D. Karra, Kevin J. Sutovich, Karl T. Mueller

Chemistry

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

72 Scopus citations

Abstract

The interactions of Bronsted acid sites of H-Y (FAU) with perdeuterated trimethylphosphine oxide (TMPO-d9) are studied with a set of high-resolution solid-state NMR experiments. Double- and triple-resonance MAS NMR techniques (such as CP, TRAPDOR, and REDOR) verify that the lines in the 31P MAS NMR spectrum are indeed from TMPO interacting with Bronsted acid sites. Replacement of acidic hydrogens in the sodalite cages with sodium cations results in the disappearance of one of the peaks, leading to final assignments of the resonances.

Original language	English (US)
Pages (from-to)	902-903
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	124
Issue number	6
DOIs	https://doi.org/10.1021/ja017172w
State	Published - Feb 12 2002

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja017172w

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title = "NMR characterization of bronsted acid sites in faujasitic zeolites with use of perdeuterated trimethylphosphine oxide",

abstract = "The interactions of Bronsted acid sites of H-Y (FAU) with perdeuterated trimethylphosphine oxide (TMPO-d9) are studied with a set of high-resolution solid-state NMR experiments. Double- and triple-resonance MAS NMR techniques (such as CP, TRAPDOR, and REDOR) verify that the lines in the 31P MAS NMR spectrum are indeed from TMPO interacting with Bronsted acid sites. Replacement of acidic hydrogens in the sodalite cages with sodium cations results in the disappearance of one of the peaks, leading to final assignments of the resonances.",

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AU - Karra, Murthy D.

AU - Sutovich, Kevin J.

AU - Mueller, Karl T.

PY - 2002/2/12

Y1 - 2002/2/12

N2 - The interactions of Bronsted acid sites of H-Y (FAU) with perdeuterated trimethylphosphine oxide (TMPO-d9) are studied with a set of high-resolution solid-state NMR experiments. Double- and triple-resonance MAS NMR techniques (such as CP, TRAPDOR, and REDOR) verify that the lines in the 31P MAS NMR spectrum are indeed from TMPO interacting with Bronsted acid sites. Replacement of acidic hydrogens in the sodalite cages with sodium cations results in the disappearance of one of the peaks, leading to final assignments of the resonances.

AB - The interactions of Bronsted acid sites of H-Y (FAU) with perdeuterated trimethylphosphine oxide (TMPO-d9) are studied with a set of high-resolution solid-state NMR experiments. Double- and triple-resonance MAS NMR techniques (such as CP, TRAPDOR, and REDOR) verify that the lines in the 31P MAS NMR spectrum are indeed from TMPO interacting with Bronsted acid sites. Replacement of acidic hydrogens in the sodalite cages with sodium cations results in the disappearance of one of the peaks, leading to final assignments of the resonances.

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JF - Journal of the American Chemical Society

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NMR characterization of bronsted acid sites in faujasitic zeolites with use of perdeuterated trimethylphosphine oxide

Abstract

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