메뉴 건너뛰기




Volumn 6, Issue 23, 2000, Pages 4327-4342

Synthesis and self-assembly of functionalized hexa-peri-hexabenzocoronenes

Author keywords

Aromatic hydrocarbons; Liquid crystals; Mesophases; Scanning tunnelling spectroscopy; Self assembly

Indexed keywords

ACETYLENE DERIVATIVE; AROMATIC HYDROCARBON; FERROUS CHLORIDE; NITROMETHANE;

EID: 0034424538     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3765(20001201)6:23<4327::AID-CHEM4327>3.0.CO;2-7     Document Type: Article
Times cited : (264)

References (89)
  • 18
    • 33748216871 scopus 로고
    • A. Stabel, P. Herwig, K. Müllen, J. P. Rabe, Angew. Chem. 1995, 107, 1768; Angew. Chem. Int. Ed. Engl. 1995, 34, 1609.
    • (1995) Angew. Chem. Int. Ed. Engl. , vol.34 , pp. 1609
  • 20
    • 85037466256 scopus 로고    scopus 로고
    • note
    • 3/nitromethane.
  • 22
    • 0001416428 scopus 로고    scopus 로고
    • V. S. Iyer, M. Wehmeier, J. D. Brand, M. A. Keegstra, K. Müllen, Angew. Chem. 1997, 109, 1675; Angew. Chem. Int. Ed. Engl. 1997, 36, 1603.
    • (1997) Angew. Chem. Int. Ed. Engl. , vol.36 , pp. 1603
  • 30
    • 85037477950 scopus 로고    scopus 로고
    • note
    • 4-Bromo-dodecylbenzene was easily available by a Friedel - Crafts acylation of lauroyl chloride and bromobenzene, followed by a Wolff-Kishner reduction of the resulting ketone.
  • 41
    • 85037464187 scopus 로고    scopus 로고
    • note
    • According to mass spectrometry of the crude reaction product, conversion is quantitative. Some material is lost on the chromatography column, due to irreversible adsorption on the silica gel.
  • 45
    • 85037461733 scopus 로고    scopus 로고
    • note
    • A detailed discussion of the UV/Vis spectra of the new HBC-derivates will be subject of a future publication.
  • 46
    • 85037446779 scopus 로고    scopus 로고
    • note
    • The first DSC cycle is not reversible in some cases. This is, presumably, due to solvent effect that induce a crystal structure, which can not be observed by thermal treatment.
  • 53
    • 85037471011 scopus 로고    scopus 로고
    • note
    • Alignment of the samples in the mesophase by mechanical shearing leads to texture effects during the X-ray measurements, which influences the intensity of the 001-reflection.
  • 58
    • 85037478376 scopus 로고    scopus 로고
    • note
    • bias: 30-200 mV). This method has been described in [11], [41] and [49].
  • 59
    • 85037470757 scopus 로고    scopus 로고
    • PhD thesis, Humboldt University Berlin
    • See also, R. Epsch, PhD thesis, Humboldt University Berlin, 1999.
    • (1999)
    • Epsch, R.1
  • 63
    • 0000727143 scopus 로고
    • Crystallographic data of unsubstituted HBCs and also of longer alkyl chains have been used to determine the theoretical value of the area, which one flat lying molecule needs. The van der Waals contour of these molecules has been determined from a) A. Stabel, R. Heinz, J. P. Rabe, G. Wegner, F. C. De Schryver, D. Corens, W. Dehaen, C. Süling, J. Phys. Chem. 1995, 99, 8690;
    • (1995) J. Phys. Chem. , vol.99 , pp. 8690
    • Stabel, A.1    Heinz, R.2    Rabe, J.P.3    Wegner, G.4    De Schryver, F.C.5    Corens, D.6    Dehaen, W.7    Süling, C.8
  • 70
    • 0001275839 scopus 로고
    • A. Belaaraj, Y. Haget, Nguyen-Ba-Chanh, J. Appl. Crystallogr. 1984, 77, 211; H. J. Milledge, L. M. Pant, Acta Crystallogr. 1960, 13, 285.
    • (1960) Acta Crystallogr. , vol.13 , pp. 285
    • Milledge, H.J.1    Pant, L.M.2
  • 71
    • 85037454463 scopus 로고    scopus 로고
    • note
    • Intermolecular forces between fluorine atoms are unfavorable because of the extreme high electronegativity of fluorine. Therefore, instead of attractive interactions between neighboring flourine end groups F⋯H contacts frequently occur.
  • 79
    • 85037484218 scopus 로고    scopus 로고
    • note
    • The measuring time is limited due to the onset of three-dimensional growth with time, which caused an increased friction by the additional layers. This perturbation can be reduced by decreasing of the concentration, but in this case the time which is necessary for the formation of the first monolayer is extremely high. In the present case, measuring times in the range of 1 - 2 h are typical.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.