作者:Mozaffar Asadi、Ali Hossein Sarvestani、Zahra Asadi、Moslem Setoodehkhah
DOI:10.1080/15533170500225441
日期:2005.9.1
coordinate cobalt(III) Schiff base complexes toward a given phosphite donor according to the axial ligand is as follows: PMe2Ph>PBu3≈PEt3. Also, the trend of the equilibrium constants of the donors (phosphite) toward a given cobalt(III) Schiff base complex is as follows: P(OEt)3>P(OIpr)3>P(OMe)3. The trend of the equilibrium constants of cobalt(III) Schiff base complexes with respect to the Schiff bases
配合物:[Co(BAE)(PEt3)]ClO4·H2O(BAE=双(乙酰丙酮)乙二亚胺)和[Co(BBE)(PR3)]ClO4·H2O,(BBE=双(苯甲酰丙酮)乙二亚胺和R=Et , Bu), 进行了合成和表征。平衡常数和热力学参数采用分光光度法测量,以 1:1 加合物形成 [Co(chel)L]ClO4 · H2O,(其中 chel=BAE、BBE 和 L=PBu3、PEt3 和 PMe2Ph)作为受体和 P(OR )3 (R=Me, Et 和 Ipr) 作为供体,在乙腈中,离子强度恒定 (I=0.01M Et4NClO4) 和不同温度 T=293 至 313 K。五配位钴 (III) 平衡常数的趋势) 根据轴向配体对给定亚磷酸酯供体的席夫碱配合物如下:PMe2Ph>PBu3≈PEt3。还,给定钴 (III) 席夫碱配合物的供体(亚磷酸盐)平衡常数趋势如下:P(OEt)3>P(OIpr