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Li XG, Liao Y, Huang MR, Kaner RB. Interfacial chemical oxidative synthesis of multifunctional polyfluoranthene. Chem Sci 2015; 6:2087-2101. [PMID: 29142676 PMCID: PMC5654415 DOI: 10.1039/c4sc03890h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 01/15/2015] [Indexed: 11/21/2022] Open
Abstract
![]() Polyfluoranthene, synthesized by an interfacial cationic oxidative polymerization of fluoranthene, emits visible fluorescence that shows highly selective sensitivity to Fe3+.
A novel polyfluoranthene (PFA) exhibiting strong visual fluorescence emission, a highly amplified quenching effect, and widely controllable electrical conductivity is synthesized by the direct cationic oxidative polymerization of fluoranthene in a dynamic interface between n-hexane and nitromethane containing fluoranthene and FeCl3, respectively. A full characterization of the molecular structure signifies that the PFAs have a degree of polymerization from 22–50 depending on the polymerization conditions. A polymerization mechanism at the interface of the hexane/nitromethane biphasic system is proposed. The conductivity of the PFA is tunable from 6.4 × 10–6 to 0.074 S cm–1 by doping with HCl or iodine. The conductivity can be significantly enhanced to 150 S cm–1 by heat treatment at 1100 °C in argon. A PFA-based chemosensor shows a highly selective sensitivity for Fe3+ detection which is unaffected by other common metal ions. The detection of Fe3+ likely involves the synergistic effect of well-distributed π-conjugated electrons throughout the PFA helical chains that function as both the fluorophore and the receptor units.
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Affiliation(s)
- Xin-Gui Li
- State Key Laboratory of Pollution Control and Resource Reuse , College of Environmental Science and Engineering , Tongji University , 1239 Si-Ping Road , Shanghai 200092 , China . ; ; ; Tel: +86-21-69582104.,Department of Chemistry & Biochemistry , California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , USA . ; ; Tel: +1 310 825 5346
| | - Yaozu Liao
- State Key Laboratory of Pollution Control and Resource Reuse , College of Environmental Science and Engineering , Tongji University , 1239 Si-Ping Road , Shanghai 200092 , China . ; ; ; Tel: +86-21-69582104.,Department of Chemistry & Biochemistry , California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , USA . ; ; Tel: +1 310 825 5346
| | - Mei-Rong Huang
- State Key Laboratory of Pollution Control and Resource Reuse , College of Environmental Science and Engineering , Tongji University , 1239 Si-Ping Road , Shanghai 200092 , China . ; ; ; Tel: +86-21-69582104.,Department of Chemistry & Biochemistry , California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , USA . ; ; Tel: +1 310 825 5346
| | - Richard B Kaner
- Department of Chemistry & Biochemistry , California NanoSystems Institute , University of California, Los Angeles , Los Angeles , California 90095 , USA . ; ; Tel: +1 310 825 5346
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Zimmer G, Mehring M, Goze C, Rachdi F. Rotational dynamics of C604- and electronic excitation in Rb4C60. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:13300-13305. [PMID: 9980522 DOI: 10.1103/physrevb.52.13300] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ilakovac V, Ravy S, Moradpour A, Firlej L, Bernier P. Disorder and electronic properties of substituted perylene radical-cation salts. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:4108-4122. [PMID: 9981537 DOI: 10.1103/physrevb.52.4108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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