Accession Number : ADA310772

Title :   Group 2 Metal Complexation by Alpha-Hydroxy Ketones.

Descriptive Note : Technical rept. 1 Jun 95-31 May 96,

Corporate Author : OREGON UNIV EUGENE DEPT OF CHEMISTRY

Personal Author(s) : Saulsbery, Robin L. ; Doxsee, Kenneth M.

PDF Url : ADA310772

Report Date : 04 JUN 1996

Pagination or Media Count : 19

Abstract : Potentiometric study of phenacyl alcohol reveals it to form a 2:1 complex with calcium in aqueous solution, with a formation constant (log 10 beta) of 3.93 at 37 deg C. In contrast, magnesium appears not to form any complexes under analogous conditions, while strontium and barium form complexes of both 1:1 and 2:1 ligand:metal stoichiometry. The efficiency of complexation of calcium by this simple alpha-hydroxy ketone and its high ability to discriminate between calcium and magnesium are both rather remarkable given the simplicity of its binding site.

Descriptors :   *METALS, *COMPLEX COMPOUNDS, *HYDROXYL RADICALS, *KETONES, *GROUP II COMPOUNDS, MAGNESIUM, CALCIUM, SOLUTIONS(MIXTURES), WATER, SITES, LIGANDS, BARIUM, STRONTIUM, STOICHIOMETRY, DISCRIMINATE ANALYSIS, METAL COMPLEXES, POTENTIOMETRIC ANALYSIS.

Subject Categories : Inorganic Chemistry
      Organic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE