Table 11.

Experimental wavelengths determined from UV–vis absorption spectra

Compound	Solvent	${\mathit{\lambda }}_{\mathit{\text{max}}}^{\mathit{\text{exper}}}$ (nm)
1	Chloroform	327; 470
2	Chloroform	344; 441
	Dioxane	356
	Dichloromethane	352
	Dimethylformamide	358
	Dimethyl sulfoxide	362
3	Tetrahydrofuran	344
	Toluene	345
	Dimethylformamide	345.5; 442
4	Dichloromethane	344
	Dimethylformamide	342