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What is Which of the following is luminous? and explain in detail?
Porphyrins are colored and fluorescent wherase porphyrinogens are colorless.- When porphyrins dissolved in strong mineral acids or in organic solvents are illuminated by ultraviolet light, they emit a strong red fluorescenceQ.- The double bonds joining the pyrrole rings in porphyrin are responsible for characteristic absorption & fluorosence.- Soret band: - The sharp absorption band near 400nm. shown by porphyrin solution (in 5% HC1)- Is characteristic of all porphyrins regardless of the side chain present.