Dinuclear lanthanum complex catalyzes the hydrolysis of a phosphate diester with unprecedented speed

1999 ◽  
pp. 1609-1610 ◽  
Author(s):  
Paul E. Jurek ◽  
Arthur E. Martell
Keyword(s):  
Phosphate Diester ◽  
Hydrolysis Of ◽  
Lanthanum Complex

scholarly journals Cover Feature: Distance between Metal Centres Affects Catalytic Efficiency of Dinuclear CoIII Complexes in the Hydrolysis of a Phosphate Diester (Eur. J. Org. Chem. 39/2018)

2018 ◽  
Vol 2018 (39) ◽  
pp. 5335-5335
Author(s):  
Eva Szusanna Bencze ◽  
Cristiano Zonta ◽  
Fabrizio Mancin ◽  
Leonard J. Prins ◽  
Paolo Scrimin
Keyword(s):  
Catalytic Efficiency ◽  
Phosphate Diester ◽  
Hydrolysis Of

Catalytic Hydrolysis of Phosphate Diester with Metal Complexes of Macrocyclic Tetraamine in Comicellar Solution

2010 ◽  
Vol 19 (2) ◽  
pp. 158-163 ◽  
Author(s):  
Qing-Xiang Xiang ◽  
Xiao-Qi Yu ◽  
Jing-Song You ◽  
Qian-Shun Yan ◽  
Rn-Gang Xie
Keyword(s):  
Metal Complexes ◽  
Catalytic Hydrolysis ◽  
Phosphate Diester ◽  
Hydrolysis Of

The Study of the Hydrolysis of the Phosphate Diester Catalyzed by an Anion Metallomicelle of Ce3+-Diethylenetriamine

2012 ◽  
Vol 554-556 ◽  
pp. 353-356
Author(s):  
Shu Lan Cai ◽  
Fa Mei Feng ◽  
Tao Wang ◽  
Xiu Lan Zhang
Keyword(s):  
Critical Micelle Concentration ◽  
High Activity ◽  
Catalytic Efficiency ◽  
Active Species ◽  
Phosphate Ester ◽  
Catalytic Hydrolysis ◽  
Phosphate Diester ◽  
Nitrophenyl Phosphate ◽  
Hydrolysis Of ◽  
Lauroyl Sarcosinate

The catalytic hydrolysis of Bis(p-nitrophenyl) phosphate ester (BNPP) in the metallomicelle made up of Ce3+-diethylenetriamine and LSS (N-lauroyl sarcosinate) was investigated by UV/VIS method. The effect of the catalytic efficiency and stability of the system was studied under the different conditions. The results indicated that the catalytic system exhibited high activity, stability and reproducibility in the BNPP catalytic hydrolysis under proper proportion of Ce3+ion and diethylenetriamine, pH and temperature when the concentration of LSS is higher than its CMC (critical micelle concentration). The results also showed that the active species is the complex made up of Ce3+ion and diethylenetriamine.

Hydrolysis of phosphate diester catalysed by transition metal complexes of a salicylaldimine Schiff base bearing dibenzo-18-crown-6

2005 ◽  
Vol 2005 (2) ◽  
pp. 130-134 ◽  
Author(s):  
Jin Zhang ◽  
Jia-qing Xie ◽  
Ying Tang ◽  
Jun Li ◽  
Jian-zhang Li ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Schiff Base ◽  
Crown Ether ◽  
Transition Metal Complexes ◽  
Catalytic Hydrolysis ◽  
Reaction Conditions ◽  
Reaction Systems ◽  
Phosphate Diester ◽  
Nitrophenyl Phosphate ◽  
Hydrolysis Of

A new crowned Schiff base ligand and its cobalt(II) and manganese(III) complexes were synthesised and characterised. These complexes were used to catalyse the hydrolysis of bis(4-nitrophenyl) phosphate (BNPP) in order to mimic the action of hydrolytic metalloenzymes. The kinetics and the mechanism of the titled reactions were investigated. The change of the characteristic ultraviolet spectra of the reaction systems was also analysed. A kinetic mathematical model of BNPP cleavage catalysed by the complexes is proposed. The function of the crown ether ring and the effects of the reaction conditions on the catalytic hydrolysis of BNPP are discussed.

Sign in / Sign up

Export Citation Format

Share Document