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. 2022 Jun 6;8(6):e09648. doi: 10.1016/j.heliyon.2022.e09648

Table 2.

Electronic absorption spectral data of HL ligand and its metal complexes in nm.

Compound π-π∗ n-π∗
HL 324 359
HL-Cu 329 367
HL-Zn 335 366