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author:

Yan, Qian-Qian (Yan, Qian-Qian.) [1] | Hu, Shao-Jun (Hu, Shao-Jun.) [2] | Zhang, Guang-Lu (Zhang, Guang-Lu.) [3] | Zhang, Ting (Zhang, Ting.) [4] | Zhou, Li-Peng (Zhou, Li-Peng.) [5] | Sun, Qing-Fu (Sun, Qing-Fu.) [6]

Indexed by:

Scopus SCIE

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 (L-a) and bidentate (L-b) 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 Pd-4(L-a)(2) complex shows remarkable 6-fold fluorescent enhancement over L-a in dilute solution. We anticipate that these kinds of coordination-enhanced emissive supramolecules will find applications in biomedical sensing or labeling.

Keyword:

AIE coordination self-assembly fluorescence enhancement tetraphenylethylene

Community:

  • [ 1 ] [Yan, Qian-Qian]Fuzhou Univ, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Hu, Shao-Jun]Fuzhou Univ, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Yan, Qian-Qian]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Hu, Shao-Jun]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Zhang, Guang-Lu]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Zhang, Ting]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Zhou, Li-Peng]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 8 ] [Sun, Qing-Fu]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • [Sun, Qing-Fu]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China

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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 Discipline: CHEMISTRY;

ESI HC Threshold:209

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 5

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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