Stable carbocations. CXXV. Proton and carbon-13 magnetic resonance studies of phenylcarbenium ion (benzyl cations). Effect of substituents of the stability of carbocations

1972 ◽  
Vol 94 (6) ◽  
pp. 2044-2052 ◽  
Author(s):  
George A. Olah ◽  
Richard D. Porter ◽  
Charles L. Jeuell ◽  
Anthony M. White
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Studies ◽  
Effect Of Substituents ◽  
The Stability

Magnetic resonance studies of metal–olefin complexes. I. Electron spin resonance spectra of γ-irradiated silver perchlorate cycloalkene complexes

1970 ◽  
Vol 48 (17) ◽  
pp. 2740-2744 ◽  
Author(s):  
D. R. Gee ◽  
K. E. Russell ◽  
J. K. S. Wan
Keyword(s):  
Electron Spin Resonance ◽  
Magnetic Resonance ◽  
Spin Density ◽  
Room Temperature ◽  
Paramagnetic Species ◽  
Magnetic Resonance Studies ◽  
Silver Perchlorate ◽  
Spin Resonance ◽  
The Stability ◽  
Polycrystalline Silver

Paramagnetic species have been detected in γ-irradiated polycrystalline silver perchlorate – cycloalkene complexes at room temperature and identified as Ag+ cycloalkenyl radicals, with spin density on Ag decreasing from 4.6 to 1.5% with increasing size of the cycloalkenyl ring. The extent of the spin density on Ag increases with the stability of the parent complexes.

Further investigations regarding the toxicity of sodium nitroprusside.

1987 ◽  
Vol 33 (4) ◽  
pp. 490-492 ◽  
Author(s):  
A R Butler ◽  
C Glidewell ◽  
J McGinnis ◽  
W I Bisset
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Sodium Nitroprusside ◽  
Analytical Procedure ◽  
Present Evidence ◽  
Magnetic Resonance Studies ◽  
13C Nuclear Magnetic Resonance ◽  
Photochemical Decomposition ◽  
The Stability

Abstract Sodium nitroprusside is a valuable vasodilator, but its use has been curtailed because of numerous reports that, in the presence of blood, nitroprusside decomposes with release of toxic cyanide. We have examined the release of cyanide in terms of the known chemistry of nitroprusside and suggest that photochemical decomposition of nitroprusside and (or) its metabolism in vivo invalidates the analytical procedure used by previous workers. We also present evidence for the stability of nitroprusside in blood, based on 13C nuclear magnetic resonance studies.

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