2%~ diffcrcncc in chemicnt shift between hydrogen bonded protons and deutcrons has been cxzmincd bodr tlworetitally nnd cxpcrimcntaliy. it is shown that valuable information about the hydrogen bond poteM can bc cxtmcted from this isotope effect on chcmicd rhifts.
Relationship between the angular characteristics of a hydrogen bond and the energetics of proton transfer occurring within
β Scribed by Steve Scheiner
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 804 KB
- Volume
- 177
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Pulsed and cw NMR methods have bezn used to investigate the 'H relkation of proton donor molecules hp drogen bonded with the DTBN radial. Frequency dependences of proton relaxation times Tr and T2 were studied with a DTBN solution of CHC.13 by the pulsed NMR method. It is shown that the relaxation m
Whenever hydrogen bonding is involved in molecular recognition, the possibility of a proton transfer from the donor to the acceptor arises. In most cases the pK a of the donor is far enough above the pK a of the conjugate acid of the acceptor for it to be clear that no proton transfer will occur. Ho