Synthesis, characterization and near-infrared photoluminescent studies of diethyl malonate appended mono-porphyrinate lanthanide complexes

Hong Shan He, Zhi Xin Zhao, Rick W K WONG*, King Fai Li, Jian Xin Meng, Kok Wai CHEAH

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

A new unsymmetrical diethyl malonate appended porphyrin and its Yb3+, Er3+ and Nd3+ complexes were prepared and characterized by elemental analysis, NMR, IR, UV-visible and mass spectral methods. The results revealed that the porphyrinate behaved as a tri-deprotonated hexadentate ligand with the appended diethyl malonate group coordinated to the lanthanide ion as an anion. Photoluminescent studies showed that the porphyrin ring transferred the absorbed visible light to the metal ions, which led to emission characteristic of the lanthanide ions in the near-infrared region. The factors affecting the emission intensity were also investigated.

Original languageEnglish
Pages (from-to)980-986
Number of pages7
JournalJournal of the Chemical Society. Dalton Transactions
Volume3
Issue number5
DOIs
Publication statusPublished - 25 Feb 2003

Scopus Subject Areas

  • Chemistry(all)

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