Explain why solvent polarity causes hypsochromic and bathochromic shfts in maximum wavelength (lambda max)

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Answer:-

Because the ions of the solvents interact with the elecrons of molecules , the interaction of electrons of non bonding orbital is more than that of antibonding pi orbital electrons. So the distance between non bonding and antibonding pi orbital electrons increases and as a result this will higher enegy and wavelength will be lower and maximum wavelength i,e, hypsochromic shift whereas due to weak interaction of antibonding pi orbital electrons with the ions of polar solvent , the distance between pi bonding and antibonding orbitals becomes lower and energy becomes lower and causes bathochromic shifts in maximum wavelengths.

queen_honey_blossom answered 1 year ago

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