Add to ORKGThe ^(15)N chemical shifts of pyrazole, N-methylpyrazole, 3-methyl- and 3,5-dimethylpyrazoles, and indazole have been measured as a function of solvent and acidity of the medium. Hydrogen bonding and protonation result in upfield shifts of both the pyridine- and pyrrole-type nitrogen resonances of these substances with the effect being larger a t the pyridine-type nitrogens. The protonation shifts far exceed those resulting from hydrogen bonding
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The ^(15)N chemical shift of pyridine has been measured in he gas phase and in a variety of solvents...
The ^(15)N chemical shifts of pyrazole, N-methylpyrazole, 3-methyl- and 3,5-dimethylpyrazoles, and i...
The ^(15)N chemical shifts of pyrazole, N-methylpyrazole, 3-methyl- and 3,5-dimethylpyrazoles, and i...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
Partially saturated pyrazoles, namely 1-(4-substituted)phenyl-3-methoxycarbonyl-5-ethoxycarbonyl-4,5...
The 15N NMR spectra of several substances with nitrogen—nitrogen bonds have been obtained at the nat...
The results of various 15N solid-state NMR experiments per- in the molecular principal axis system (...
The "N chemical shifts of thirteen NH-pyrazoles in the solid state and of seven NH-pyrazoles in...
Solvent effects were determined for the^(15)N NMR chemical shifts of some primary, secondary, and te...
Solvent effects were determined for the^(15)N NMR chemical shifts of some primary, secondary, and te...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The ^(15)N chemical shift of pyridine has been measured in he gas phase and in a variety of solvents...
The ^(15)N chemical shifts of pyrazole, N-methylpyrazole, 3-methyl- and 3,5-dimethylpyrazoles, and i...
The ^(15)N chemical shifts of pyrazole, N-methylpyrazole, 3-methyl- and 3,5-dimethylpyrazoles, and i...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
The ^(15)N chemical shifts of imidazoles, N-methylimidazole and 4-methylimidazole, have been measure...
Partially saturated pyrazoles, namely 1-(4-substituted)phenyl-3-methoxycarbonyl-5-ethoxycarbonyl-4,5...
The 15N NMR spectra of several substances with nitrogen—nitrogen bonds have been obtained at the nat...
The results of various 15N solid-state NMR experiments per- in the molecular principal axis system (...
The "N chemical shifts of thirteen NH-pyrazoles in the solid state and of seven NH-pyrazoles in...
Solvent effects were determined for the^(15)N NMR chemical shifts of some primary, secondary, and te...
Solvent effects were determined for the^(15)N NMR chemical shifts of some primary, secondary, and te...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The effects of solvent changes from chloroform to trifluoroethanol to trifluoroacetic acid on the ch...
The ^(15)N chemical shift of pyridine has been measured in he gas phase and in a variety of solvents...