Non-adiabatic, superfast passage to resonance: an alternative to pulsed fourier transform for absorption line shapes

Segel, S. L.; Creel, R. B.; Torgeson, D. R.

doi:10.1016/0022-2860(83)85100-x

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Cited by 10 publications

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“…The 2D and 23Na broadline NM R spectra were recorded using an N M R spectrometer operating in the non-adiabatic super-fast passage mode [6], The sample tem perature was stable to ± 2 K but at higher temperatures (580 K) the tem perature gra dient across the sample was typically 5 K. Teflon proved to be a reliable container. D euterium NM R were collected using a pulsed Fourier transform spectrometer with a 6.3 Tesla superconducting magnet.…”

Section: Methodsmentioning

confidence: 99%

Deuterium and sodium quadrupole interactions in sodium hydroxide. II. The monoclinic phase

Amm

Segel

Bastow

et al. 1986

The Journal of Chemical Physics

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The temperature dependence of the 23NaOH pure quadrupole resonance (NQR) frequency has been studied from 77 to 550 K and shows a change in slope and a discontinuous change in frequency of 6 ± 2 kHz at the orthorhombic to monoclinic phase transition at 505 K. At 292 K the 23Na NQR frequency is 1.778 ± 0.001 MHz, 11 <0.04. The temperature dependence ofthe deuterium quadrupole coupling was fit to a librating molecule model between 293 and 570 K (QCC = 245 ± 2 kHz, 11 = 0.05 ± 0.01 at 293 K) and confirms that the frequency ofthe ODlibration decreases in the high temperature monoclinic phase.

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Section: Methodsmentioning

confidence: 99%