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    Functions containing a heteroatom different from oxygen

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    The main photochemical reactions of chromophores containing nitrogen, phosphorus, silicon, sulfur and halogen atoms are briefly reviewe

    Green chemistry and photochemistry were born at the same time

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    Where to look for really ‘green’ synthetic methods, under conditions as mild as those nature uses? A hundred years ago, a great scientist, Giacomo Ciamician, confronted the problem. He had no doubt of the answer: it was solar light. The approach and the discoveries by Ciamician are illustrated in connection with present-day green chemistry
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