Lanthanide complexes with phosphorylated 2-naphthylsulfonamides ligands as electromagnetic radiation converters

The participation of both the multipolar and exchange mechanisms was considered. The number of parameters determined for LnL1 such as: experimental intensity parameters (Ωλ), radiative (Arad) and non-radiative (Anrad) decay rates, emission lifetimes (τ), theoretical and experimental quantum yields were compared with the data for lanthanide complexes with dimethyl (2-naphthyl)sulfonylamidophosphate (LnL2). The strong temperature dependence of the excited 5D4 level lifetime of TbL1 was recorded in the range of 30 μs - 2 ms, in the temperature range 300-77 K. This phenomenon could be used in chemical thermometry.