TY - JOUR
AU - Tosaka, Teruyuki
AB - The rate of exchange of acetylacetonate ions (acac−) in tris(acetylacetonato)iron(III) with 2-thenoyltrifluoro-acetonate ions (tta−) has been measured in several organic solvents. The rate was independent of the concentration of Hacac and Htta and nearly the same in carbon tetrachloride, benzene, acetone, and 4-methyl-2-pentanone. However, the rate was much greater in ethanol. The rate of exchange in carbon tetrachloride, benzene, and acetone was found to be enhanced by water, ethanol, and several acids. The enhancement was smaller in acetone than in nonpolar solvents and the stronger the acid, the greater the catalytic effect. The rate controlling step of the exchange reaction was the rupture of an acetylacetonate ion from iron(III) in the complex. These observations have been discussed and possible mechanisms proposed.
TI - Rate of Ligand Exchange of Tris(acetylacetonato)iron(III) with 2-Thenoyltrifluoroacetone in Organic Solvents
JF - Bulletin of the Chemical Society of Japan
DO - 10.1246/bcsj.52.1046
DA - 2006-04-19
UR - https://www.deepdyve.com/lp/oxford-university-press/rate-of-ligand-exchange-of-tris-acetylacetonato-iron-iii-with-2-so7wQbiAwf
SP - 1046
EP - 1050
VL - 52
IS - 4
DP - DeepDyve
ER -