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Synthesis, spectroscopy and electrochemistry of lanthanide bis-(ethylsulfanyl)tetraazaporphyrins

✍ Scribed by Giampaolo Ricciardi; Sandra Belviso; Francesco Lelj; Sandra Ristori

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
186 KB
Volume
02
Category
Article
ISSN
1088-4246

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✦ Synopsis

porphyrazinato) with trivalent lanthanide ions, such as Nd 3 , Eu 3 , Dy 3 , Yb 3 and Lu 3 , leads to the direct synthesis of the corresponding sandwich complexes, in the radical, ligand-oxidized green form, whereas the reaction with La 3 affords the sandwich complex in the protonated, blue form. It is found that the ligandoxidized complexes show rather weak electronic absorptions in the range 850-1150 nm and are, compared to lanthanide diporphyrins and diphthalocyanines, very stable both to oxidation and to reduction.

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