Macrocycles Containing Tin. Through Space Cooperative Binding and High Size Selectivity in the Complexation of Chloride Ion by Lewis Acidic Macrobicyclic Hosts.
Abstract
The preparation of macrobicyclic hosts 1,8-dichloro-1,8-distannabicyclo eisocane (1a), 1,10-dichloro-10-distannabicyclo hexacosane (1b), 1,12-dichloro-1,12-distannabicyclo dotriacontane (1c) and 1, 12-dichloro-1,12-distannabicyclo octatriacontane (1d) are reported. Complexation of chloride ion in CDCl3 solutions by these hosts was studied by Sn-119 NMR spectroscopy, and kinetics and equilibrium constants for 1b-d were determined by line shape analysis. Selective chloride binding was observed; hosts 1b and 1c bind chloride more strongly than does host 1d, and host 1a does not bind chloride. Keyswords: Tin, Marcrocycle, Macrobicycle, Complexation, Size, Selective, Lewis acid, Chloride, Kinetics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 27, 1987
- Accession Number
- ADA183058
Entities
People
- John H. Horner
- Martin Newcomb
- Michael T. Blanda
Organizations
- Texas A&M University