Accession Number : ADA262220


Title :   Quantitation of Enantiomeric Recognition in Chiral Crown Ether-Ammonium Salt Systems


Descriptive Note : Technical rept.


Corporate Author : BRIGHAM YOUNG UNIV PROVO UT DEPT OF CHEMISTRY


Personal Author(s) : Zhu, C ; Izatt, R M ; Wang, T ; Huszthy, P ; Bradshaw, J S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a262220.pdf


Report Date : 17 Mar 1993


Pagination or Media Count : 7


Abstract : The rapid progress in host-guest chemistry involving macrocycles has been due in no small part to the availability of reliable and extensive thermodynamic data for a large number of host-guest systems. Although valuable information concerning these systems can be derived from delta H and delta S values, few calorimetric data have been reported for host-guest systems. This report summarizes the log K, delta H, delta S, and delta log K values for the interaction of a number of chiral 18-crown-6 host molecules for the enantiomers of alpha-(l-naphthyl)ethylammonium and alpha-(phenyl)ethylammonium perchlorate salts.


Descriptors :   *LIGANDS , *RECOGNITION , INTERACTIONS , MOLECULES , AMMONIUM COMPOUNDS , SALTS , CALORIMETRY , PERCHLORATES , PHENYL RADICALS , MOLECULAR STRUCTURE , ETHERS , THERMODYNAMICS , CHEMISTRY


Subject Categories : Organic Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE