Synthesis, structure and near-infrared luminescence of neutral 3d-4f bi-metallic monoporphyrinate complexes

W. K. Wong, A. Hou, J. Guo, H. He, L. Zhang, Wai Yeung Wong, K. F. Li, K. W. Cheah, F. Xue, T. C.W. Mak

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Abstract

The interaction of cationic lanthanide complexes [Ln(porp)(H2O)3]+(Ln= Er or Yb; porp = porphyrinate) with sodium (cyclopentadienyl)tris(diethylphosphito)cobaltate (NaLOEt) gives the neutral 3d-4f bi-metallic porphyrinate complexes, [(LOEt)Ln(porp)]. X-Ray structural analyses reveal that these complexes are seven-coordinate with the three oxygen atoms of the O3-tripodal ligand, LOEt, coordinated to the lanthanide metal behaving as a 6-electron donor. Photophysical measurements show that the porphyrinate ligand behaves as a sensitizer by absorbing visible light to excite the Ln(III) metal ions, producing near-infrared emission.
Original languageEnglish
Pages (from-to)3092-3098
Number of pages7
JournalJournal of the Chemical Society, Dalton Transactions
Issue number20
Publication statusPublished - 20 Nov 2001
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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