Nuclear Magnetic Resonance Studies on the Existence of Perchlorate Complexes of Transition Metal Ions in Aqueous Perchloric Acid

1963 ◽  
Vol 2 (1) ◽  
pp. 139-142 ◽  
Author(s):  
Frank Klanberg ◽  
John P. Hunt ◽  
Harold W. Dodgen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Transition Metal ◽  
Metal Ions ◽  
Perchloric Acid ◽  
Transition Metal Ions ◽  
Magnetic Resonance Studies ◽  
Aqueous Perchloric Acid ◽  
Nuclear Magnetic

NUCLEAR MAGNETIC RESONANCE STUDIES OF THE PROTONATION OF WEAK BASES IN FLUOROSULPHURIC ACID: IV. PHENOLS AND AROMATIC ETHERS

1964 ◽  
Vol 42 (6) ◽  
pp. 1433-1439 ◽  
Author(s):  
T. Birchall ◽  
A. N. Bourns ◽  
R. J. Gillespie ◽  
P. J. Smith
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Perchloric Acid ◽  
Ultraviolet Spectroscopy ◽  
Aromatic Carbon ◽  
Magnetic Resonance Studies ◽  
Weak Bases ◽  
Nuclear Magnetic

The n.m.r. spectra of phenol, anisole, and other phenols and aromatic ethers in solution in fluorosulphuric acid and in 70% perchloric acid show that in every case they protonate on an aromatic carbon. Earlier evidence from ultraviolet spectroscopy that phenol and anisole protonate on oxygen is reinterpreted.

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