Multiheteromacrocycles that complex metal ions. Sixth progress report, 1 May 1979-30 April 1980. [Hemispherands; spherands]

Technical Report · Tue Jan 15 00:00:00 EST 1980

DOI:https://doi.org/10.2172/5130964· OSTI ID:5130964

Cram, D J

Objective is to design synthesize, and evaluate cyclic and polycyclic host organic compounds for their abilities to complex and lipophilize guest metal ions, their complexes, and their clusters. Host organic compounds consist of strategically placed solvating, coordinating, and ion-pairing sites tied together by covalent bonds through hydrocarbon units around cavities shaped to be occupied by guest metal ions or by metal ions plus their ligands. Specificity in complexation is sought by matching the following properties of host and guest: cavity and metal ion sizes; geometric arrangements of binding sites; number of binding sites; character of binding sites; and valences. During this period, hemispherands based on an aryloxy or cyclic urea unit, spherands based on aryloxyl units only, and their complexes with alkali metals and alkaline earths were investigated. An attempt to separate /sup 6/Li and /sup 7/Li by gel permeation chromatography of lithiospherium chloride failed. (DLC)

• Research Organization: California Univ., Los Angeles (USA). Dept. of Chemistry
• DOE Contract Number: AT03-76ER70218
• OSTI ID: 5130964
• Report Number(s): DOE/ER/70218-T1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKALI METAL COMPLEXES
ALKALINE EARTH METAL COMPLEXES
HETEROCYCLIC COMPOUNDS
LIGANDS
SYNTHESIS
AROMATICS
CHLOROFORM
COMPLEXES
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
RESEARCH PROGRAMS
SOLVENT EXTRACTION
CHLORINATED ALIPHATIC HYDROCARBONS
EXTRACTION
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SEPARATION PROCESSES
400201* - Chemical & Physicochemical Properties