摘要:
The protonation constants of N-(4-vinyl)benzyl ethylenediamine (L1), 1-(4-vinyl)benzyl dielhylenetriamine (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 P2(1)/c, having lattice parameters a = 12.48(2), b = 12.062(16), c = 9.188(15) Angstrom, beta = 97.46(7)degrees, and Z = 2. [CuL2(NO3)(2)]. CH3CO2C2H5 crystallizes in the monoclinic system with space group P2(1)/n, having lattice parameters a = 10.239(2), b = 9.177(1), c = 24.096(4) Angstrom, beta = 95.99(1)degrees, and Z = 2. Kinetic studies show that the Cu(II)-containing cross-linked polymers made from incorporating [Cu(L1)(2)]X-2 and [CuL3]X-2 (X = ClO4-, NO3-) catalyze the hydrolysis of 4-nitrophenyl phosphate with first-order rate constants 1.33 x 10(-5) and 1.04 x 10(-6) s(-1), respectively, at 55 degreesC and pH 8.5. (C) 2000 Elsevier Science B.V. All rights reserved.