The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...
The ligands are attached to the central atom by dative bonds ... but primarily limited to CT transitions between d- and π-orbitals. Here, CT emission from 4f- to π-orbitals is demonstrated ...
Photoinduced metal-to-ligand (or ligand-to-metal) charge-transfer (CT) states in metal complexes have been extensively studied, but primarily limited to CT transitions between d- and π-orbitals.