Zhu-Qi Chen

Publications (3)18.48 Total impact

• Article: Functional IrIII complexes and their applications.

  Zhu-qi Chen, Zu-qiang Bian, Chun-hui Huang
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  ABSTRACT: Iridium complexes are drawing great interest because they exhibit high phosphorescence quantum efficiency. Extensive efforts have been devoted to the molecular design of ligands to achieve phosphorescent emission over a wide range of wavelengths that is compatible with many applications. In this research news article, we focus on materials design to improve the performance of phosphorescent Ir(III) complexes for organic light-emitting diodes (OLEDs), luminescence sensitizers, and biological imaging.
  Advanced Materials 04/2010; 22(13):1534-9. · 13.88 Impact Factor
• Article: Highly efficient sensitized red emission from europium (III) in Ir-Eu bimetallic complexes by 3MLCT energy transfer.

  Fang-Fang Chen, Zu-Qiang Bian, Zhi-Wei Liu, Dao-Bo Nie, Zhu-Qi Chen, Chun-Hui Huang
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  ABSTRACT: Two novel iridium-europium bimetallic complexes, {[(dfppy)2Ir(mu-phen5f)]3EuCl}Cl2 and (dfppy)2Ir(mu-phen5f)Eu(TFAcA)3 [dfppy represents 2-(4',6'-difluorophenyl)-pyridinato-N,C(2'), phen5f stands for 4,4,5,5,5-pentafluoro-1-(1',10'-phenanthrolin-2'-yl)-pentane-1,3-dionate and TFAcA represents trifluoroacetylacetonate], were successfully synthesized. The novel ligand Hphen5f with four coordination sites was designed as a bridge to link the Ir (III) center and the Eu (III) center. The X-ray diffraction data shows that the nonbonding distances for Eu...Ir are 6.028, 5.907, and 6.100 A in the bimetallic complex {[(dfppy)2Ir(mu-phen5f)]3EuCl}Cl2. Photophysical studies implied that the high efficient red luminescence from the Eu (III) ion was sensitized by the (3)MLCT (metal-to-ligand charge transfer) energy based on an Ir (III) complex-ligand in a d-f bimetallic assembly. The excitation window for the new bimetallic complex {[(dfppy)2Ir(mu-phen5f)]3EuCl}Cl2 extends up to 530 nm (1 x 10(-3) M in EtOH), indicating that this bimetallic complex can emit red light under the irradiation of sunlight.
  Inorganic Chemistry 05/2008; 47(7):2507-13. · 4.60 Impact Factor
• Article: Sensitized luminescence from lanthanides in d–f bimetallic complexes

  Fang-Fang Chen, Zhu-Qi Chen, Zu-Qiang Bian, Chun-Hui Huang
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  ABSTRACT: This article reviews progress in the research of transition metal–lanthanide (d–f) bimetallic complexes. Through efficient energy transfer, sensitized luminescence of lanthanide ions from the visible range (EuIII) to the near-infrared region (NdIII, YbIII, ErIII and PrIII) is obtained in these bimetallic assembles. The d-block in d–f bimetallic complexes mainly contributes to the improvement of lanthanide emission efficiency and the extension of the excitation window for the lanthanide complexes. Examples are catalogued by various transition metals, such as RuII, OsII (FeII), PtII (AuI), PdII, ReI, CrIII, CoIII, ZnII and IrIII. The relevant synthetic procedures, crystal structures and photophysical properties of these d–f complexes are briefly described. Additionally, the molecular properties responsible for the performance of certain d–f systems, such as energy levels, nuclear distances and coordination environments, will be discussed.
  Coordination Chemistry Reviews.