Lanthanide porphyrazine sandwich complexes: Synthetic, structural and spectroscopic investigations

A. Garrido Montalban, S. L J Michel, S. M. Baum, B. J. Vesper, A. J P White, D. J. Williams, A. G M Barrett, B. M. Hoffman

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)3269-3273
Number of pages5
JournalJournal of the Chemical Society, Dalton Transactions
Volume22
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Chemistry(all)

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    Garrido Montalban, A., Michel, S. L. J., Baum, S. M., Vesper, B. J., White, A. J. P., Williams, D. J., Barrett, A. G. M., & Hoffman, B. M. (2001). Lanthanide porphyrazine sandwich complexes: Synthetic, structural and spectroscopic investigations. Journal of the Chemical Society, Dalton Transactions, 22, 3269-3273. https://doi.org/10.1039/b103346h