An europium(III) hydrolytic catalyst favoring anionic phosphate esters over phosphate triester
SCIE
SCOPUS
KCI
- Title
- An europium(III) hydrolytic catalyst favoring anionic phosphate esters over phosphate triester
- Authors
- Yoon, CW; Oh, SJ; Jeon, YJ; Choi, YS; Son, YK; Hwangbo, S; Ku, JK; Park, JW
- Date Issued
- 2001-02-20
- Publisher
- KOREAN CHEMICAL SOC
- Abstract
- A Cryptate (221) having a short alcohol pendant (2) was metallated with europium(III) in anhydrous condition, and its hydrolytic activity for phosphate esters at neutral pH was examined. While the activity for the phosphate diester and monoester is comparable to that of the parent metal complex [1Eu](3+), its hydrolytic activity towards a phosphate triester is significantly suppressed. Potentiometric titration and luminescence spectroscopic studies for the equilibrium behavior of the complex in solution suggest that a dimer formation through the metal hydroxides as well as the pendant alcohol is likely to happen. The low hydrolytic activity for the triester seems to be associated with the dimer formation.
- Keywords
- europium hydrolytic catalyst; phosphate esters; luminescence spectra; CARBOXYESTER HYDROLYSIS; DIESTER CLEAVAGE; RAPID CLEAVAGE; ZINC ENZYMES; METAL-IONS; COMPLEXES; MODEL; RNA; PENDANT; DNA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19642
- ISSN
- 0253-2964
- Article Type
- Article
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 22, no. 2, page. 199 - 204, 2001-02-20
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.