A novel Ce complex of 4-acylpyrazolones of formula [Ce(CPTP)4] (C6H5CH3)3 (HCPTP = 1-(4-chlorophenyl)-3-phenyl-4-thenoyl-1H-pyrazol-5-ol) has been synthesized and characterized. It crystallizes in the triclinic space group P-1 with a = 12.9770(12) Å, b = 16.7877(15) Å, c = 21.8362(19) Å; a = 105.5250(10)º, b = 93.389(2)º, g = 99.209(2)º, V = 4498.4(7) Å3, C101H72N8O8S4CeCl4, Mr = 1935.87, Z = 2, Dc = 1.429 g/cm3, m = 0.781 mm-1, F(000) = 1976, R = 0.0312 and wR = 0.0696 for 16643 observed reflections with I > 2s(I). The complex is mononuclear. In air and solution stable compounds containing an eight-coordinated Ce(IV) center in a distorted dodecahedral configuration, the average Ce-O bond length is 2.3351(14) Å.
合成并表征了一种 4-酰基
吡唑酮的新型 Ce 复合物,其
化学式为 [Ce(C
PTP)4] (C6H5CH3)3 (HC
PTP = 1-(4-
氯苯基)-3-苯基-4-苯甲酰基-1H-
吡唑-5-醇)。它在三linic 空间群 P-1 中结晶,a = 12.9770(12) Å, b = 16.7877(15) Å, c = 21.8362(19) Å; a = 105.5250(10)º, b = 93.389(2)º, g = 99.209(2)º, V = 4498.4(7) Å3, C101H72N8O8S4CeCl4, Mr = 1935.87, Z = 2, Dc = 1.429 g/cm3, m = 0.781 mm-1, F(000) = 1976, R = 0.0312 and wR = 0.0696 for 16643 observed reflections with I > 2s(I).该复合物为单核。在空气和溶液中的稳定化合物含有一个十二面体变形构型的八配位 Ce(IV)中心,Ce-O 键的平均长度为 2.3351(14)Å。