Correlation between pKa values and nuclear magnetic resonance dilution shifts for the hydroxylic proton of acids in pyridine

1988 ◽  
Vol 92 (17) ◽  
pp. 4883-4885 ◽  
Author(s):  
Tsuneo Ikenoue ◽  
Nobuyuki Yoshida
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Pka Values ◽  
Hydroxylic Proton ◽  
Nuclear Magnetic

Acid-base behavior of sulfoxides. Measurement of pKa values by ultraviolet and nuclear magnetic resonance techniques

1969 ◽  
Vol 91 (24) ◽  
pp. 6703-6707 ◽  
Author(s):  
D. Landini ◽  
Giorgio Modena ◽  
Gianfranco Scorrano ◽  
Ferdinando Taddei
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Acid Base ◽  
Pka Values ◽  
Nuclear Magnetic

An emerging technology: Nuclear magnetic resonance microscopy

1988 ◽  
Vol 46 ◽  
pp. 1000-1001
Author(s):  
M.J. Hennessy ◽  
E. Kwok
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Relaxation Times ◽  
Basic Research ◽  
Local Environment ◽  
Magnetic Resonance Images ◽  
Nmr Microscopy ◽  
Mri Scans ◽  
Temperature Relaxation ◽  
Nuclear Magnetic

Much progress in nuclear magnetic resonance microscope has been made in the last few years as a result of improved instrumentation and techniques being made available through basic research in magnetic resonance imaging (MRI) technologies for medicine. Nuclear magnetic resonance (NMR) was first observed in the hydrogen nucleus in water by Bloch, Purcell and Pound over 40 years ago. Today, in medicine, virtually all commercial MRI scans are made of water bound in tissue. This is also true for NMR microscopy, which has focussed mainly on biological applications. The reason water is the favored molecule for NMR is because water is,the most abundant molecule in biology. It is also the most NMR sensitive having the largest nuclear magnetic moment and having reasonable room temperature relaxation times (from 10 ms to 3 sec). The contrast seen in magnetic resonance images is due mostly to distribution of water relaxation times in sample which are extremely sensitive to the local environment.

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