30 results on '"Forsyth, David"'
Search Results
2. Revealing NMR-Invisible Conformational Processes in Amines through NMR Isotope Shifts
3. NMR detection of an unusual eclipsed structure establishes the origin of large specific rotations in chirally deuterated amines
4. Distortion toward bridging accompanying hyperconjugation in a simple tertiary alkyl carbocation
5. Large intrinsic nuclear magnetic resonance isotope shifts associated with bending motion along the bridging coordinate in carbocations
6. Long-range intrinsic NMR isotope shifts as a probe of hyperconjugation. Demonstration of the angular dependence in bicyclic carbocations
7. Conformational analysis via NMR isotope shifts. Side-chain equilibria in N-alkylpiperidines
8. Isotopic perturbation of resonance in benzylic cations
9. Stable carbocations. 185. Carbon-fluorine spin-spin coupling in carbocations
10. Stable carbocations. 204. Rearrangement and equilibria of ions formed from side-chain substituted .beta.-phenylethyl chlorides under stable ion conditions
11. NMR isotope shift and perturbational MO study of conformation and hyperconjugation in cyclopentyl cations
12. Stable carbocations. 219. Patterns of carbon-13 chemical shift response to substituent effects in arylcarbenium ions. The 2-furyl, 2-thienyl, 2-benzofuryl, and 2-benzothienyl systems
13. Nonbonded interactions in phenylcarbenium ions
14. Stable carbocations. 194. Patterns of carbon-13 chemical shift response to substituent effects in arylcarbenium ions. The phenyl, phenylethynyl, and naphthyl systems
15. Stable carbocations. 195. Rearrangement of ethylenebenzenium ions to .alpha.-phenylethyl(styryl) cations. Determination of the relative energies of the .sigma.-bridged ethylenebenzenium ion, the open-chain 2-phenylethyl cation, and the .alpha.-styryl cation
16. Oxidation of polycyclic arenes in antimony(V) fluoride/sulfuryl chloride fluoride. Formation of arene dications and observation of electron exchange with radical cations based on carbon-13 nuclear magnetic resonance studies
17. Intrinsic and equilibrium NMR isotope shift evidence for negative hyperconjugation
18. Electrophilic reactions at single bonds. XVIII. Indication of protosolvated de facto substituting agents in the reactions of alkanes with acetylium and nitronium ions in superacidic media
19. NMR chemical shift and NMR isotope shift evidence for the influence of nonbonded interactions on charge distribution in .alpha.,.beta.-unsaturated methoxycarbenium ions
20. Deuterium isotope effects on the carbon-13 chemical shifts in 2-substituted 2-norbornyl cations
21. Stable carbocations. CLXXIX. Correlation of carbon-13 chemical shifts and CNDO/2 charge distributions in phenylcarbenium ions and related phenyl substituted onium ions
22. Conformationally dependent intrinsic and equilibrium isotope effects in N-methylpiperidine
23. Stable carbocations. CLXXXVI. Relation of carbon-13 NMR shifts to the effect of methyl substitution on electronic charge distribution at trigonal carbons
24. Stable carbocations. 215. Carbon-13 nuclear magnetic resonance spectroscopic study of the benzenium, naphthalenium, and anthracenium ions
25. NMR isotope shift as a probe of conformation in carbocations. Determination of conformation in a cyclopentyl cation
26. Stable carbocations. CLXXIV. Charge distribution differences in benzenium and nitrobenzenium ions based on carbon-13 nuclear magnetic resonance studies and their relevance to the isomer distribution in electrophilic aromatic substitutions
27. Conformational dependence of isotope effects for hyperconjugating methyl groups. Nonadditivity of NMR isotope shifts in benzylic ions
28. Hydrogen-deuterium kinetic isotope effects for .gamma.-hydrogen rearrangement in 2-hexanone following photochemical excitation, electron impact ionization, and anodic oxidation
29. Semiempirical models for substituent effects in electrophilic aromatic substitution and side-chain reactions
30. Revealing `NMR-invisible' conformational processes in amines through NMR isotope shifts.
Catalog
Books, media, physical & digital resources
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.