New anionic cobalt complexes using highly hindered bis-amides with varying donor abilities as ligands
作者:Claudio A. Jiménez、Julio B. Belmar、Joel Alderete、Fernando S. Delgado、Matías López-Rodríguez、Octavio Peña、Miguel Julve、Catalina Ruiz-Perez
DOI:10.1039/b617604f
日期:——
compounds of formulae [Co(III)(L(3))Na(I)(H(2)O)(2)] (5), [Co(III)(L(n))Li(I)(H(2)O)2] with n = 1 (6), 2 (7) and 3 (8) and [Co(II)(L(4))Li(I)(2)] (9). Complexes 5-8 are square planar Co(III) species, as corroborated by the crystal structure of 5. In this compound, two amide-nitrogen and two phenolate-oxygen atoms of a fully deprotonated (L(3))(4-) anion build a slightly distorted square planar surrounding
四个潜在的式1,2-双-(3,5-二叔丁基-2-羟基苯甲酰胺基)乙烷的四齿配体(H(4)L(1),1),1,2-双-(3, 5-二叔丁基-2-羟基苯甲酰胺基丙烷(H(4)L(2),2),1,2-双-(3,5-二叔丁基-2-羟基苯甲酰胺基)苯(H (4)L(3),3)和1,8-双-(3,5-二叔丁基-2-羟基苯甲酰胺基)萘(H(4)L(4),4)已经制备好了通过单晶X射线衍射确定其中三个(1、3和4)的晶体结构。研究它们对Co(II)的络合能力,得到式[Co(III)(L(3))Na(I)(H(2)O)(2)](5),[Co(III) )(L(n))Li(I)(H(2)O)2],其中n = 1(6),2(7)和3(8)和[Co(II)(L(4))Li (I)(2)](9)。配合物5-8是方形平面Co(III)物种,由5的晶体结构所证实。在该化合物中,完全去质子化的(L(3))(4-)阴离子的