作者:Michelle Kaiser、Lucas Winkler、Alexander Hinz
DOI:10.1002/zaac.202200131
日期:2022.10.14
[RCr(THF)2(Cl)] (4 a), were obtained, while the analogous Ni(II) complex remained elusive. However, incorporation of PMe3 as stronger donor molecule in comparison sufficed to stabilise also the Ni(II) complex [RNi(PMe3)2(Cl)] (5 b). The series was completed by treatment of 1 a–4 a with PMe3, which afforded the related phosphine complexes 1 b–4 b. All complexes were characterised in the solid state by single crystal
在这篇文章中,报告了九种新型 3d 金属配合物的合成和性质。作为支持配体支架,使用庞大的 1,8-双(3,5-二叔丁基苯基)-3,6-二叔丁基咔唑 (R)。在去质子化和盐复分解反应后,一系列四种配合物,二聚体 [RMn(THF)(μ-Cl)] 2 ( 1 a )、[RFe(THF)(μ-Cl)] 2 ( 2 a ) 和获得了[RCo(THF)(μ-Cl)] 2 ( 3 a ) 以及单体[RCr(THF) 2 (Cl)] ( 4 a ),而类似的Ni(II) 络合物仍然难以捉摸。然而,加入 PMe 3相比之下,更强的供体分子也足以稳定 Ni(II) 络合物 [RNi(PMe 3 ) 2 (Cl)] ( 5b )。该系列通过用 PMe 3处理1 a - 4 a完成,得到相关的膦配合物1 b - 4 b。所有配合物均通过单晶结构解析在固态下进行表征,并通过 Evans 方法的 NMR 实验确定它们在溶液中的磁矩。