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Cyclometalated Iridium(III) Complexes with a Norbornene-Substituted Picolinate Ligand and Electroluminescent Polymers Based on them

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Abstract

New cyclometalated iridium(III) complexes, NBEpicIr(Ppy)2 (I) and NBEpicIr(Dfppy)2 (II), were synthesized (NBEpicH = 3-(((1S,4S)-bicyclo[2.2.1]hept-5-ene-2-carbonyl)oxy)picolinic acid, PpyH = 2-phenylpyridine, DfppyH = 2-(2,4-difluorophenyl)pyridine). Complex I was characterized by X‑ray diffraction analysis (CIF file CCDC no. 1878882). Ring opening metathesis polymerization involving compounds I and II and carbazole norbornene monomers gave new iridium-containing copolymers. The photophysical properties of complexes I and II and copolymers based on them were studied.

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ACKNOWLEDGMENTS

X-ray diffraction studies were carried out using the research equipment of the Center for Collective Use “Analytical Center of the Institute of Organometallic Chemistry, Russian Academy of Sciences.”

FUNDING

This work was performed within the State Assignment (subject no. 44.2, reg. no. AAAA-A16-116122110053-1).

Author information

Correspondence to L. N. Bochkarev.

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The authors declare that they have no conflicts of interest.

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Translated by Z. Svitanko

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Begantsova, Y.E., Bochkarev, L.N., Baranov, E.V. et al. Cyclometalated Iridium(III) Complexes with a Norbornene-Substituted Picolinate Ligand and Electroluminescent Polymers Based on them. Russ J Coord Chem 45, 856–866 (2019) doi:10.1134/S1070328419120029

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Keywords:

  • cyclometalated iridium complexes
  • iridium-containing polymers
  • metathesis polymerization
  • photoluminescence
  • electroluminescence