Nuclear Overhauser assignment of the imino protons of the acceptor helix and the ribothymidine helix in the nuclear magnetic resonance spectrum of Escherichia coli isoleucine transfer ribonucleic acid: evidence for costacked helices in solution

Biochemistry ◽  
1982 ◽  
Vol 21 (21) ◽  
pp. 5129-5135 ◽  
Author(s):  
Dennis R. Hare ◽  
Brian R. Reid
Keyword(s):  
Escherichia Coli ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Spectrum ◽  
Ribonucleic Acid ◽  
Resonance Spectrum ◽  
Nuclear Overhauser ◽  
Nuclear Magnetic

13C-Nuclear Magnetic Resonance Spectrum of Tropolone

1972 ◽  
Vol 50 (12) ◽  
pp. 1975-1977 ◽  
Author(s):  
Larry Weiler
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Spectrum ◽  
Room Temperature ◽  
Resonance Spectrum ◽  
Tautomeric Equilibrium ◽  
Charge Densities ◽  
13C Nuclear Magnetic Resonance ◽  
Nuclear Overhauser ◽  
Nuclear Magnetic

The 13C-n.m.r. spectrum of tropolone has been obtained and it clearly shows that there is a rapid tautomeric equilibrium at room temperature. The peaks have been tentatively assigned using calculated π charge densities and nuclear Overhauser enhancements.

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