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Volumn 11, Issue 11, 2005, Pages 3349-3362

High charge-carrier mobility in π-deficient discotic mesogens: design and structure-property relationship

Author keywords

Charge carrier mobility; Columnar mesophases; Electron deficient mesogens; Liquid crystals; X ray diffraction

Indexed keywords

AROMATIC COMPOUNDS; CARRIER MOBILITY; COLUMN CHROMATOGRAPHY; CRYSTALLIZATION; CYCLIC VOLTAMMETRY; DIFFERENTIAL SCANNING CALORIMETRY; HYDROCHLORIC ACID; IRRADIATION; LIQUID CRYSTALS; MICROWAVES; ORGANIC POLYMERS; RADIOLYSIS; SUPRAMOLECULAR CHEMISTRY; X RAY DIFFRACTION;

EID: 19944408650     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.200400586     Document Type: Article
Times cited : (170)

References (49)
  • 29
    • 0003002772 scopus 로고    scopus 로고
    • (Eds.: D. Demus, J. W. Goodby, G. W. Gray, H. W. Spiess, V. Vill), Wiley-VCH, Weinheim
    • J. W. Goodby, G. W. Gray in Handbook of Liquid Crystals, Vol. 1 (Eds.: D. Demus, J. W. Goodby, G. W. Gray, H. W. Spiess, V. Vill), Wiley-VCH, Weinheim 1998, pp. 17-25.
    • (1998) Handbook of Liquid Crystals , vol.1 , pp. 17-25
    • Goodby, J.W.1    Gray, G.W.2
  • 30
    • 19944374194 scopus 로고    scopus 로고
    • note
    • 0), oriented fibres or single crystals could not be prepared. The π-π distances can thus only be estimated from the powder diffraction patterns, considering simultaneously the charge-carrier mobility data in the same phase. The reflection at 3.5 Å cannot be unambiguously related to the π-stacking distance.
  • 34
    • 9344260872 scopus 로고    scopus 로고
    • A similar halo was found for polycatenar mesogens in their columnar mesophase, and the authors related the diffuse scattered intensity to an intracolumnar average distance, which corresponds to the height of a "columnar slice", see; B. Donnio, B. Heinrich, H. Allouchi, J. Kain, S. Diele, D. Guillon, D. W. Bruce, J. Am. Chem. Soc. 2004, 126, 15258-15268.
    • (2004) J. Am. Chem. Soc. , vol.126 , pp. 15258-15268
    • Donnio, B.1    Heinrich, B.2    Allouchi, H.3    Kain, J.4    Diele, S.5    Guillon, D.6    Bruce, D.W.7
  • 35
    • 0037448889 scopus 로고    scopus 로고
    • and references therein
    • A group of four reflections is found in columnar liquid crystals when molecules form a helical superstructure; see, for example J. Baberá, E. Cavero, M. Lehmann, J.-L. Serrano, T. Sierra, J. T. Vázquez, J. Am. Chem. Soc. 2003, 125, 4527-4533, and references therein. The interpretation of the four signals of 1d resulting from a helical superstructure with a helical pitch of p = (8.7/cos23° × 3) Å = 28.4 Å is qualitatively equivalent to the given model if molecules are regularly rotationally displaced by 60°, thus completing a full helix with six molecules along a column. However, there is no further evidence for such a superstructure.
    • (2003) J. Am. Chem. Soc. , vol.125 , pp. 4527-4533
    • Baberá, J.1    Cavero, E.2    Lehmann, M.3    Serrano, J.-L.4    Sierra, T.5    Vázquez, J.T.6
  • 36
    • 19944406207 scopus 로고    scopus 로고
    • note
    • Preliminary solid-state NMR results studied by Dr. Ingrid Fischbach at the Max-Planck Institute for Polymer Research in Mainz (Germany) confirmed the mobility of the mesogens in the temperature range of the plastic phase.
  • 37
    • 19944419868 scopus 로고    scopus 로고
    • note
    • A table with a possible indexation (1a) and 2D diffraction patterns (1a, 1b) are available in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.