Macrocycles Containing Tin; a Small Exclusive Host for the Fluoride Ion
Abstract
The binding of halide ions by host 1 (1, 8-dichloro-1,8-distanna- bicyclo(6.6.6)eicosane) in solution have been studied Nuclear Magnetic Resonance (NMR) spectroscopy. In CDCl3 solutions, host 1 maintains its structural integrity in the presence of tetraalkylammonium halides. Host 1 shows no binding properties towards chloride, bromide or iodide ions. Molecular recognition of anionic guests by multidentate, Lewis acidic hosts in organic media has been observed in only limited cases. Further, neutral, macrocyclic receptors for anions or bases have just begun to receive properties of a series of Lewis acidic macrobicyclic hosts (1-4) containing bridgehead tin atoms. organometallic compounds.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1988
- Accession Number
- ADA196616
Entities
People
- Martin Newcomb
- Michael T. Blanda
Organizations
- Texas A&M University