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author:

Yan, Q.-Q. (Yan, Q.-Q..) [1] | Hu, S.-J. (Hu, S.-J..) [2] | Zhang, G.-L. (Zhang, G.-L..) [3] | Zhang, T. (Zhang, T..) [4] | Zhou, L.-P. (Zhou, L.-P..) [5] | Sun, Q.-F. (Sun, Q.-F..) [6]

Indexed by:

Scopus

Abstract:

Materials with aggregation-induced emission (AIE) properties have received increased attention recently due to their potential applications in light-emitting devices, chemo/biosensors and biomedical diagnostics. In general, AIE requires the forced aggregation of the AIEgens induced by the poor solvent or close arrangement of AIEgens covalently attached to polymer chains. Here, we report two coordination-enhanced fluorescent supramolecular complexes featuring hierarchically restricted intramolecular motions via the self-assembly of tetraphenylethylene (TPE)-based tetra-dentate (La) and bidentate (Lb) ligands and the cis-Pd(en)(NO3)2 (en = ethylenediamine) unit. While the free ligands are non-emissive in dilute solution and show typical AIE properties in both mixed solvent system and the solid state, the self-assembled complexes maintain their fluorescent nature in the solution state. In particular, the Pd4(La)2 complex shows remarkable 6-fold fluorescent enhancement over La in dilute solution. We anticipate that these kinds of coordination-enhanced emissive supramolecules will find applications in biomedical sensing or labeling. © 2018 by the authors.

Keyword:

AIE; Coordination self-assembly; Fluorescence enhancement; Tetraphenylethylene

Community:

  • [ 1 ] [Yan, Q.-Q.]College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Yan, Q.-Q.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 3 ] [Hu, S.-J.]College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Hu, S.-J.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 5 ] [Zhang, G.-L.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 6 ] [Zhang, T.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 7 ] [Zhou, L.-P.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 8 ] [Sun, Q.-F.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China

Reprint 's Address:

  • [Sun, Q.-F.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of SciencesChina

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Source :

Molecules

ISSN: 1420-3049

Year: 2018

Issue: 2

Volume: 23

3 . 0 6

JCR@2018

4 . 2 0 0

JCR@2023

ESI HC Threshold:209

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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