Role of Mononuclear Rare Earth Metal Complexes in Promoting the Hydrolysis of 2-Hydroxypropyl p-Nitrophenyl Phosphate

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2007,（11）
• 页码范围: 1646-1651
• 页数: 6页
• 语种: 英文

摘要

Two long-chain multidentate ligands: 2,9-di-(n-2',5',8'-triazanonyl)-1,10-phenanthroline (L1) and 2,9-di-(n-4',7',10'-triazaundecyl)-1,10-phenanthroline (L2) were synthesized. The hydrolytic kinetics of 2-hydroxypropyl p-nitrophenyl phosphate (HPNP) catalyzed by the complexes of L1 or L2 with La(Ⅲ) or Gd(Ⅲ) have been studied lytic effect of GdL1 was the best among the four complexes for hydrolysis of HPNP. Its kLnLH-1, kLnL and pKa are structure of the ligands and the properties of the metal ions, and deduced the catalysis mechanism.