Lanthanide porphyrazine sandwich complexes: synthetic, structural and spectroscopic investigations

Autor:	Sarah L. J. Michel, Antonio Garrido Montalban, Andrew J. P. White, Sven M. Baum, David J. Williams, Anthony G. M. Barrett, Brian M. Hoffman, Benjamin J. Vesper
Rok vydání:	2001
Předmět:	Lanthanide chemistry.chemical_compound Crystallography chemistry law Inorganic chemistry General Chemistry Porphyrazine Cyclic voltammetry Electron paramagnetic resonance law.invention
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :3269-3273
ISSN:	1364-5447 1472-7773
DOI:	10.1039/b103346h
Popis:	The synthesis of four novel lanthanide tetraazaporphyrin (porphyrazine) sandwich complexes is reported: [Ce(OPTAP)2] (2), [Lu(OPTAP)2] (3), [Eu(OPTAP)2] (4) and [Eu2(OPTAP)3] (5) (OPTAP = 2,3,7,8,12,13,17,18-octapropyltetraazaporphyrinato). The structure of 2 has been unequivocally established by an X-ray crystallographic study. The π radical nature of 3 and 4 has been confirmed by UV-vis, IR, and EPR spectroscopy. Cyclic voltammetry results show that 2–5 are more easily oxidized than 1 (H2OPTAP) by 0.41, 0.56, 0.48 and 0.40 V respectively.
Databáze:	OpenAIRE
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