Pyridinedicarboxylate-Tb(III) Complex-Based Luminescent Probes for ATP Monitoring

Table 3

Luminescence properties of the pyridinedicarboxylate-Tb(III) complexes (24 mg/L) in Tris-HCl buffer (pH 7.4).

Complex	λex (nm)	Assignment	λem (nm)	Assignment
TbDPC	225	π ⟶ π	490	^5D4 ⟶ ^7F6
	270	π ⟶ π	545	^5D4 ⟶ ^7F5
			585	^5D4 ⟶ ^7F4
			622	^5D4 ⟶ ^7F3
Tb(DPC)3	225	π ⟶ π	490	^5D4 ⟶ ^7F6
	270	π ⟶ π	545	^5D4 ⟶ ^7F5
			585	^5D4 ⟶ ^7F4
			622	^5D4 ⟶ ^7F3

Emission spectra at λ_ex = 270 nm and λ_ob = 545 nm; emission and excitation slit widths: 5 nm; PMT voltage: 400 V.