Structural and Luminescent Features of Lanthanide Ate Complexes with Polychlorinated 2-Mercaptobenzothiazolate Ligands
作者:Vasily A. Ilichev、Anton F. Rogozhin、Alyona V. Belyakova、Anton V. Rozhkov、Artem N. Yablonskiy、Roman V. Rumyantcev、Ekaterina A. Kozlova、Georgy K. Fukin、Mikhail N. Bochkarev
DOI:10.1021/acs.organomet.3c00260
日期:2023.10.9
X-ray studies of complexes 1, 3, 4, and 6 revealed the difference in the coordinating fashion of the ionic lanthanide complexes with the mbtCl2 and mbtCl4 ligands. Furthermore, the electron density topologies for complexes 1, 3, 4, and 6 were investigated. The triplet levels of the mbtCl2 and mbtCl4 ligands, which were obtained from the phosphorescence spectra of the Gd complexes 2 and 5, lie at 21 800
部分和完全氯化的2-巯基苯并噻唑,即5,6-二氯-1,3-苯并噻唑-2(3 H )-硫酮(Hmbt Cl2 )和4,5,6,7-四氯-1,3-苯并噻唑-2 (3 H )-硫酮(Hmbt Cl4 )被用作镧系元素发光的敏化剂。镧系元素络合物1 – 6,具有通式 [Na(DME) 3 ] + [Ln(mbt Cl n ) 4 ] − ( 1 : Ln = Nd, n = 2; 2 : Ln = Gd, n = 2; 3:Ln=Tb,n =2;4:Ln=Nd,n =4;5:Ln=Gd,n =4;和6:Ln = Tb,n = 4) 使用方便的一锅法合成,其中包括各自的硫酮与镧系元素和甲硅烷基酰胺钠的相互作用。配合物1、3、4和6的X射线研究揭示了离子镧系元素配合物与mbt Cl2和mbt Cl4配体的配位方式的差异。此外,配合物1、3、4和6的电子密度拓扑被调查。从Gd配合物2和5的磷光光谱中获得的mbt