Lanthanide relaxation and shift properties as NMR probes for the location of tributylphosphate in clays

Cynthia J. Hartzell; Mao Lin Hsu; Thomas Buscher; David E. Morris; P. Gary Eller

doi:10.1080/10587259208025823

Lanthanide relaxation and shift properties as NMR probes for the location of tributylphosphate in clays

Cynthia J. Hartzell, Mao Lin Hsu, Thomas Buscher, David E. Morris, P. Gary Eller

Chemistry and Biochemistry

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

Abstract

The interaction of Eu³⁺ and tributylphosphate in the montmorillonite clay SAZ1 has been investigated by NMR spectroscopy. The ¹³C-NMR spectrum of TBP sorbed onto SAZ1 partially exchanged with Eu³⁺ shows two sets of four peaks differing by 2–3ppm. Longitudinal relaxation times for ¹³C-TBP sorbed to SAZ1 and Eu³⁺-SAZ1 (as D₂O slurries) are .9s and .4s, respectively. The T₁'s determined by ¹³C-CPMAS on the solid samples are .24s and .28s, respectively. Linewidths of the CPMAS spectra of ¹³C-TBP sorbed to SAZ1 and Eu³⁺-SAZ1 are 204 Hz and 305 Hz.

Original language	English (US)
Pages (from-to)	227-232
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Volume	211
Issue number	1
DOIs	https://doi.org/10.1080/10587259208025823
State	Published - Jan 1 1992

Keywords

CPMAS of tributylphosphate
NMR
clays
europium shift effects
montmorillonite
tributylphosphate

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587259208025823

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Lanthanide relaxation and shift properties as NMR probes for the location of tributylphosphate in clays. / Hartzell, Cynthia J.; Hsu, Mao Lin; Buscher, Thomas et al.
In: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol. 211, No. 1, 01.01.1992, p. 227-232.

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

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title = "Lanthanide relaxation and shift properties as NMR probes for the location of tributylphosphate in clays",

abstract = "The interaction of Eu3+ and tributylphosphate in the montmorillonite clay SAZ1 has been investigated by NMR spectroscopy. The 13C-NMR spectrum of TBP sorbed onto SAZ1 partially exchanged with Eu3+ shows two sets of four peaks differing by 2–3ppm. Longitudinal relaxation times for 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 (as D2O slurries) are .9s and .4s, respectively. The T1's determined by 13C-CPMAS on the solid samples are .24s and .28s, respectively. Linewidths of the CPMAS spectra of 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 are 204 Hz and 305 Hz.",

keywords = "CPMAS of tributylphosphate, NMR, clays, europium shift effects, montmorillonite, tributylphosphate",

author = "Hartzell, {Cynthia J.} and Hsu, {Mao Lin} and Thomas Buscher and Morris, {David E.} and Eller, {P. Gary}",

note = "Funding Information: This work was performed under the sponsorship of the U.S. Department of Energy, Office of Environmental Restoration and Waste Management Young Faculty Awards Program administered by Oak Ridge Associated Universities for the U.S. Department of Energy and was jointly supported by the Subsurface Science Program of the U.S. Department of Energy, Office of Health and Environmental Science.",

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AU - Morris, David E.

AU - Eller, P. Gary

N1 - Funding Information: This work was performed under the sponsorship of the U.S. Department of Energy, Office of Environmental Restoration and Waste Management Young Faculty Awards Program administered by Oak Ridge Associated Universities for the U.S. Department of Energy and was jointly supported by the Subsurface Science Program of the U.S. Department of Energy, Office of Health and Environmental Science.

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N2 - The interaction of Eu3+ and tributylphosphate in the montmorillonite clay SAZ1 has been investigated by NMR spectroscopy. The 13C-NMR spectrum of TBP sorbed onto SAZ1 partially exchanged with Eu3+ shows two sets of four peaks differing by 2–3ppm. Longitudinal relaxation times for 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 (as D2O slurries) are .9s and .4s, respectively. The T1's determined by 13C-CPMAS on the solid samples are .24s and .28s, respectively. Linewidths of the CPMAS spectra of 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 are 204 Hz and 305 Hz.

AB - The interaction of Eu3+ and tributylphosphate in the montmorillonite clay SAZ1 has been investigated by NMR spectroscopy. The 13C-NMR spectrum of TBP sorbed onto SAZ1 partially exchanged with Eu3+ shows two sets of four peaks differing by 2–3ppm. Longitudinal relaxation times for 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 (as D2O slurries) are .9s and .4s, respectively. The T1's determined by 13C-CPMAS on the solid samples are .24s and .28s, respectively. Linewidths of the CPMAS spectra of 13C-TBP sorbed to SAZ1 and Eu3+-SAZ1 are 204 Hz and 305 Hz.

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KW - europium shift effects

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Lanthanide relaxation and shift properties as NMR probes for the location of tributylphosphate in clays

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