Clean Procedure and DFT Study for the Synthesis of 2-Amino-3-ethoxycarbonyl-4-(aryl)-4H-pyrano-[3,2-c]-chromene-5-ones Derivatives: A Novel Class of Potential Antimicrobial and Antioxidant Agents : Table 2

Table 2: Theoretical and experimental vibrational frequencies (cm⁻¹) and theoretical infrared intensities (km mol⁻¹) of 5c.