Cu(II)-containing cross-linked polymers for the hydrolysis of 4-nitrophenyl phosphate

Autor:	Alok Singh, Q Lu, Jeffrey R. Deschamps, Eddie L. Chang
Rok vydání:	2000
Předmět:	Stereochemistry Ethylenediamine Protonation Crystal structure Phosphate Inorganic Chemistry chemistry.chemical_compound Hydrolysis Crystallography Reaction rate constant chemistry Diethylenetriamine Materials Chemistry Physical and Theoretical Chemistry Monoclinic crystal system
Zdroj:	Inorganica Chimica Acta. 309:82-90
ISSN:	0020-1693
DOI:	10.1016/s0020-1693(00)00241-3
Popis:	The protonation constants of N-(4-vinyl)benzyl ethylenediamine (L1), 1-(4-vinyl)benzyl diethylenetriamine (L2), 4-(4-vinyl)benzyl diethylenetriamine (L3), and the stability constants of their Cu(II) and Zn(II) complexes have been potentiometrically determined. The crystal structures of [Cu(L1)2][ClO4]2 and [CuL2(NO3)2]·CH3CO2C2H5 are reported. [Cu(L1)2][ClO4]2 crystallizes in the monoclinic system with space group P21/c, having lattice parameters a=12.48(2), b=12.062(16), c=9.188(15) A, β=97.46(7)°, and Z=2. [CuL2(NO3)2]·CH3CO2C2H5 crystallizes in the monoclinic system with space group P21/n, having lattice parameters a=10.239(2), b=9.177(1), c=24.096(4) A, β=95.99(1)°, and Z=2. Kinetic studies show that the Cu(II)-containing cross-linked polymers made from incorporating [Cu(L1)2]X2 and [CuL3]X2 (X=ClO4 −, NO3 −) catalyze the hydrolysis of 4-nitrophenyl phosphate with first-order rate constants 1.33×10−5 and 1.04×10−6 s−1, respectively, at 55°C and pH 8.5.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3c85fd1eedf8e17462af896e6ff06cd5 https://doi.org/10.1016/s0020-1693(00)00241-3 Zobrazit plný text záznamu Full Text from ScienceDirect