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Photochemistry and photophysics of coordination compounds: An extended view

✍ Scribed by Vincenzo Balzani; Alberto Credi; Margherita Venturi


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
876 KB
Volume
171
Category
Article
ISSN
0010-8545

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✦ Synopsis


Coordinalion che,mb;try is much more thou: the coo.'-'dina~,.h;~a of tra;~sifion-meu_d ~or~s b) orgaific o[I inorgm3ic ligands. I',s ~copΒ’ extends to the binding of at] kinds of subs~rates (cationic, ~mionic. and neum~l molecuk:r spec,,esL ThereCore coordinado~ ci-.,emistr) merges into the big field of supramolecular c~emistr}, Coordinu'don compounds O.vith or withcu-~ meuJs} exhibit by definition a high 1eve! of org~miza~ion and d~erefl:'u'e ~.he: ure quite suitable to exploi~ the energy mid ird'ormalJo~ content of photons, h3 zi3i.~ paper v,e illustrate specific examples concermng d~e simi!arity between the pho;~cb.emical be>m,, ior of c~assica! coordina-tion3 compound,-. {i.e. metal complexes} and supramolecu1:~r species not contaimng metals. > ?


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Five different verdins, including one zinc metal chelate, were examined by laser flash techniques. Triplet molar absorption coefficients, triplet and singlet oxygen quantum yields and triplet lifetimes were determined. Zinc methyl pyroverdin (ZNMPV), copro II verdin trimethyl ester (CVTME) and deute