Figure 1. (A) Absorption spectrum of 1 in CH₂Cl₂ (1×10⁻⁶ M). (B) Tauc/Davis–Mott plot used to determine the bandgap energy (E_g) of 1. (C) Absorption spectrum of 2 in CH₂Cl₂ (1×10⁻⁶ M). (D) Tauc/Davis–Mott plot used to determine E_g of 2. (E) Absorption spectrum of 3 in CH₂Cl₂ (1×10⁻⁶ M). (F) Tauc/Davis–Mott plot used to determine E_g of 3

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Undergraduate Experiment Using Absorption and Diffuse Reflectance Spectroscopies: Theoretical and Experimental Bandgap Calculations of Porphyrins and Metalloporphyrins

Muna Bufaroosha, Shaikha S. Al Neyadi, Ahmed Alzamly, Mohamad Toutounji, Na’il Saleh, Bashar Yousef Abuhattab, Abdullah Al-Hemyari, Amna Alyammahi, Shamma Alzahmi, Mohamed Altubji, Ruba Al-Ajeil

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