摘要
The luminescence of Eu￣(3+) in Eu(PBI)_3 phen and [Eu (PBI)_3 ·C_2H_5OH ·H_2O] ·H_2O(PBI: 3-phenyl-4-benzoyl isoxazate ,phen: 1, 10-phenanthroline) is reported. It is shown that theEu￣(3+) ions in Eu(PBI)_3 phen are positioned on the two sites and the various lines are assigned to eachsite. However, Eu￣(3+) ions occupy a single site in [Eu(PBI)_3 ·C_2H_5OH ·H_2O] ·H_2O and the crystal field splittings of the￣7F_(1￣4) levels are much larger than those in Eu (PBI)_3phen.
The luminescence of Eu￣(3+) in Eu(PBI)_3 phen and [Eu (PBI)_3 ·C_2H_5OH ·H_2O] ·H_2O(PBI: 3-phenyl-4-benzoyl isoxazate ,phen: 1, 10-phenanthroline) is reported. It is shown that theEu￣(3+) ions in Eu(PBI)_3 phen are positioned on the two sites and the various lines are assigned to eachsite. However, Eu￣(3+) ions occupy a single site in [Eu(PBI)_3 ·C_2H_5OH ·H_2O] ·H_2O and the crystal field splittings of the￣7F_(1￣4) levels are much larger than those in Eu (PBI)_3phen.
