Loading...
Please wait, while we are loading the content...
Chiral Host-Guest Recognition in the Solvent Free Gas Phase as Determined by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR/MS)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dearden, David V. Bradshaw, Jerald S. Huszthy, Péter Izatt, Reed M. |
| Copyright Year | 1993 |
| Abstract | Abstract : Chiral recognition is observed for a gas-phase host-guest system by using Fourier transform ion cyclotron resonance mass spectrometry to determine equilibrium constants for the transfer of R-or S-(1-naphthyl)ethylammonium (NapEt+) cation from S,S-dimethyldiketopyridino-18-crown-6 to unsubstituted 18- crown-6. The unsubstituted crown has substantially higher affinity for both guests than the chiral crown. The measured equilibrium constants are 130 +/- 15 for R-NapEt+, and 567 +/- 68 for S-NapEt+, yielding a difference of 4.2 +/- 0.4 kJ/mol-1 between the stabilities of the complexes of the two enantiomeric guests with the chiral host. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://apps.dtic.mil/dtic/tr/fulltext/u2/a262196.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |