Synthesis, crystal structures, photoluminescent, magnetic and chiroptical properties of two homochiral Er III complexes with different nuclearity

Recent Advances of Near-Infrared (NIR) Emissive Metal Complexes Bridged by Ligands with N- and/or O-Donor Sites

“…With the development of research on emissive metal complexes, small molecule bridging ligands have been unable to meet the study requirements. Therefore, a large number of functionalized large polypyridine organic ligands have been designed and synthesized for the preparation of NIR emissive metal complexes [33,[36][37][38]. As shown in Figure 2, from 4 to 9, not only the relative molecular weight of bridging ligand distinctly increases, but also their structure with special functions gradually becomes complicated.…”

Two chiral lanthanide PrIII and HoIII complexes: NIR luminescence and nonlinear optical properties

“…However, the reported chiral Ln III complexes with NIR luminescence are still limited mainly due to the fact that Ln III ions often have high coordination numbers (usually 7–10), which increases the difficulty of chiral control in such an emission system, and the use of enantiopure chiral ligands has proven to be the most effective strategy for acquiring chiral Ln III complexes. 19,20,29–34…”