Synthesis, structures and optical power limiting of some transition metal and lanthanide monoporphyrinate complexes containing electron-rich diphenylamino substituents

Shitao Fu, Xunjin Zhu, Guijiang Zhou, Wai Yeung Wong, Cheng Ye, Wai Kwok Wong, Zaoying Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

47 Citations (Scopus)


Transition metal and lanthanide monoporphyrinate complexes based on 5,10,15,20-tetrakis[p-(diphenylamino)-phenyl]-21H,23H-porphine (H2tdpapp) have been synthesized and characterized and the X-ray crystal structures of the palladium and platinum analogues [M(tdpapp)] (M = Pd, Pt) determined. Experimental investigations of the nonlinear optical transmittance characteristics at 532 nm show that most of these new metalated porphyrinate complexes are excellent optical limiters with performances comparable or superior to those of the benchmark reverse saturable absorption dyes such as fullerene C60and (phthalocyanine)metal complexes. The nonlinear optical measurements reveal that the optical-limiting effects of porphyrins can be enhanced greatly by incorporation of lanthanide ions and covalent attachment of the electron-donating diphenylamino moieties to the parent porphyrinate ring. The optical-limiting thresholds for these lanthanide monoporphyrinate complexes range from 0.09 to 0.30 Jem-2at 82% linear transmittance, which makes them attractive candidates as optical-limiting materials for the protection of various optical devices. KGaA, 2007.
Original languageEnglish
Pages (from-to)2004-2013
Number of pages10
JournalEuropean Journal of Inorganic Chemistry
Issue number14
Publication statusPublished - 2 Jul 2007
Externally publishedYes


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

ASJC Scopus subject areas

  • Inorganic Chemistry

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