Oxygen-17 nuclear quadrupole double resonance spectroscopy. 4. Oxygen-17 and nitrogen-14 nuclear quadrupole resonance spectra of twisted nitro groups

1981 ◽  
Vol 85 (12) ◽  
pp. 1698-1700 ◽  
Author(s):  
Yukio Hiyama ◽  
Theodore L. Brown
Keyword(s):  
Nuclear Quadrupole Resonance ◽  
Double Resonance ◽  
Resonance Spectroscopy ◽  
Quadrupole Resonance ◽  
Double Resonance Spectroscopy ◽  
Nuclear Quadrupole

A Low-Temperature High-Sensitivity Field-Cycling Spectrometer for Quadrupole Double Resonance Spectroscopy

1990 ◽  
Vol 45 (3-4) ◽  
pp. 595-598 ◽  
Author(s):  
M. M. P. Khurshid ◽  
F. Zhenye ◽  
J.A.S. Smith
Keyword(s):  
Variable Temperature ◽  
Double Resonance ◽  
High Sensitivity ◽  
Resonance Spectroscopy ◽  
Quadrupole Resonance ◽  
Field Cycling ◽  
Double Resonance Spectroscopy ◽  
Nuclear Quadrupole ◽  
The Magnetic Field ◽  
Sensitivity Field

Abstract This paper discusses the design of a variable-temperature high-sensitivity field cycling spectrometer for nuclear magnetic resonance and nuclear quadrupole double resonance experiments. The instrument is capable of detecting N-14 quadrupole resonance signals from samples as small as 0.1 g down to temperatures of 150 K. The magnetic field cycling is performed by mechanical transfer of the sample using a pair of switchable electromagnetic solenoids, in times of about 0.2 s.

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