Luminescence of some simple tetracoordinate organoboron complexes in solution. Fluorescence from ligand to ligand CT states

作者：Vogler Arnd^*

来源：Inorganic Chemistry Communications, 2016, 72: 83-85.

DOI：10.1016/j.inoche.2016.08.012

• Organoboron complexes
• Lewis base-BPh3 adducts
• Electronic spectra
• LLCT
• Fluorescence

The Lewis base-Lewis acid adducts with the Lewis bases pyrazine, triphenyphosphine, neocuproine (2,9-dimethy1-1,10-phenanthroline), cuproine (2,2'-diquinolyl) and triphenylborane as Lewis acid were prepared. Their electronic spectra are characterized by low-energy electronic transitions which are attributed to phenyl (BPh3) to Lewis base, ligand to ligand charge transfer (LLCT) transitions. These Lewis base-BPh3 complexes display a distinct blue to green fluorescence in solution which originates from the lowest-energy LLCT singlets.

• 出版日期2016-10