Miroshnichenko Anna S, Deriabin Konstantin V, Rashevskii Artem A, Suslonov Vitalii V, Novikov Alexander S, Mukhin Ivan S, Islamova Regina M
Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., St. Petersburg 199034, Russia.
ChemBio Cluster, ITMO University, 49 Kronverksky Pr., St. Petersburg 197101, Russia.
Polymers (Basel). 2022 Dec 18;14(24):5540. doi: 10.3390/polym14245540.
Photoluminescent lanthanide complexes of Eu and Tb as central atoms and ,-diisopropyl-[2,2'-bipyridine]-6,6'-dicarboxamide as ligand were synthesized. The structure of these complexes was established by single-crystal X-ray diffraction, mass spectrometry, H and C nuclear magnetic resonance, ultraviolet-visible, infrared spectroscopy, and thermogravimetry. Bipyridinic ligands provide formation of coordinatively saturated complexes of lanthanide ions and strong photoluminescence (PL). The Eu- and Tb-complexes exhibit PL emission in the red and green regions observed at a 340 nm excitation. The quantum yield for the complexes was revealed to be 36.5 and 12.6% for Tb- and Eu-complexes, respectively. These lanthanide compounds could be employed as photoluminescent solid-state compounds and as emitting fillers in polymer (for example, polyethylene glycol) photoluminescent materials.
合成了以铕（Eu）和铽（Tb）为中心原子、以α,α'-二异丙基-[2,2'-联吡啶]-6,6'-二甲酰胺为配体的光致发光镧系配合物。通过单晶X射线衍射、质谱、氢和碳核磁共振、紫外可见光谱、红外光谱以及热重分析确定了这些配合物的结构。联吡啶配体可形成镧系离子的配位饱和配合物并产生强光致发光（PL）。Eu和Tb配合物在340 nm激发下分别在红色和绿色区域表现出PL发射。结果表明，Tb和Eu配合物的量子产率分别为36.5%和12.6%。这些镧系化合物可用作光致发光固态化合物以及聚合物（如聚乙二醇）光致发光材料中的发光填料。
