Analysis of 2H NMR spectra of water molecules on the surface of nano-silica material MCM-41: Deconvolution of the signal into a Lorentzian and a powder pattern line shapes

J. Hassan

doi:10.1016/j.physb.2011.10.023

Analysis of ²H NMR spectra of water molecules on the surface of nano-silica material MCM-41: Deconvolution of the signal into a Lorentzian and a powder pattern line shapes

J. Hassan

Physics

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

14 Scopus citations

Abstract

Water ²H NMR signal on the surface of nano-silica material MCM-41 consists of two overlapping resonances. The ²H water spectrum shows a superposition of a Lorentzian line shape and the familiar NMR powder pattern line shape, indicating the existence of two spin components. Exchange occurs between these two groups. Decomposition of the two signals is a crucial starting point to study the exchange process. In this article we have determined these spin component populations along with other important parameters for the ²H water NMR signal over a temperature range between 223 K and 343 K.

Original language	British English
Pages (from-to)	179-183
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	407
Issue number	1
DOIs	https://doi.org/10.1016/j.physb.2011.10.023
State	Published - 1 Jan 2012

Keywords

H NMR
Chemical exchange
MCM-41
Powder pattern line shape
Water

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10.1016/j.physb.2011.10.023

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abstract = "Water 2H NMR signal on the surface of nano-silica material MCM-41 consists of two overlapping resonances. The 2H water spectrum shows a superposition of a Lorentzian line shape and the familiar NMR powder pattern line shape, indicating the existence of two spin components. Exchange occurs between these two groups. Decomposition of the two signals is a crucial starting point to study the exchange process. In this article we have determined these spin component populations along with other important parameters for the 2H water NMR signal over a temperature range between 223 K and 343 K.",

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AB - Water 2H NMR signal on the surface of nano-silica material MCM-41 consists of two overlapping resonances. The 2H water spectrum shows a superposition of a Lorentzian line shape and the familiar NMR powder pattern line shape, indicating the existence of two spin components. Exchange occurs between these two groups. Decomposition of the two signals is a crucial starting point to study the exchange process. In this article we have determined these spin component populations along with other important parameters for the 2H water NMR signal over a temperature range between 223 K and 343 K.

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KW - Chemical exchange

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KW - Powder pattern line shape

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Analysis of ²H NMR spectra of water molecules on the surface of nano-silica material MCM-41: Deconvolution of the signal into a Lorentzian and a powder pattern line shapes

Abstract

Keywords

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