Table 9.

Fluorescence data for ligand and complexes.

Compound	Excitation wavelength λexc = 400 nm		Excitation wavelength λexc = 429 nm
	Emission wavelength λem (nm)	Relative fluorescence intensity (a.u.)	Emission wavelength λem (nm)	Relative fluorescence intensity (a.u.)
HL	540 599	82.43 174.87	456 545 642	>1000 73.23 323.29
[Mg(L)2(H2O)2]·H2O (1)	545 598	510.61 379.94	459 548 642	824.65 576.89 331.28
[Zn(L)2(H2O)2]·0.5H2O (2)	548 598	536.83 410	458 548 642	727.71 627.11 346.30