Synthesis, characterization, and photophysical properties of some heterodimetallic bisporphyrins of ytterbium and transition metals - Enhancement and lifetime extension of Yb3+emission by transition-metal porphyrin sensitization

Feng Lei Jiang, Wai Kwok Wong, Xun Jin Zhu, Gui Jiang Zhou, Wai Yeung Wong, Po Lam Wu, Hoi Lam Tam, Kok Wai Cheah, Cheng Ye, Yi Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

39 Citations (Scopus)

Abstract

A series of d-f heterodimetallic bisporphyrin complexes (YbZn, YbPd, and YbPt), in which a YbIIIporphyrinate moiety is linked to a transition-metal porphyrinate moiety by a flexible three-carbon chain, were synthesized. They were fully characterized by high-resolution mass spectrometry,1H and31P NMR spectroscopy, electronic absorption, and fluorescence methods. Variable-temperature near-infrared photoluminescence studies showed that the transition-metal porphyrinate moiety would enhance the ytterbium(III) emission centered at about 998 nm and extend its emission lifetime. YbPd and YbPt showed large two-photon absorption cross-section values because of the interaction between the porphyrin units, which caused a loss of centrosymmetry. Optical limiting investigation demonstrated that [Yb(TPP)(LOMe)] and YbPt have comparable performance to C60by virtue of their heavy-metal effect. Our results indicate that these bisporphyrin dimetallic complexes will find valuable applications in the field of nonlinear optics. KGaA, 2007.
Original languageEnglish
Pages (from-to)3365-3374
Number of pages10
JournalEuropean Journal of Inorganic Chemistry
Issue number21
DOIs
Publication statusPublished - 8 Aug 2007
Externally publishedYes

Keywords

  • Lanthanides
  • Optical limiting
  • Photoluminescence
  • Porphyrins
  • Transition metals

ASJC Scopus subject areas

  • Inorganic Chemistry

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