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Volumn 13, Issue 4, 2001, Pages 243-246

Self-assembled hexagonal nanoarrays of novel macrocyclic oligothiophene-diacetylenes

Author keywords

[No Author keywords available]

Indexed keywords

ADSORPTION; CRYSTAL LATTICES; GRAPHITE; IMAGE ANALYSIS; MACROMOLECULES; MOLECULAR STRUCTURE; MONOLAYERS; NANOSTRUCTURED MATERIALS; PHASE INTERFACES; SCANNING TUNNELING MICROSCOPY; SELF ASSEMBLY;

EID: 17344385624     PISSN: 09359648     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-4095(200102)13:4<243::AID-ADMA243>3.0.CO;2-X     Document Type: Article
Times cited : (104)

References (37)
  • 6
  • 9
    • 0033906741 scopus 로고    scopus 로고
    • b) D. Xu, Y. Xu, D. Chen, G. Guo, L. Gui, Y. Tang, Adv. Mater. 2000, 12, 520. T. S. Mayer, Adv. Mater. 1999, 11, 1021.
    • (1999) Adv. Mater. , vol.11 , pp. 1021
    • Mayer, T.S.1
  • 34
    • 4243215325 scopus 로고    scopus 로고
    • Ph.D. Thesis, University of Ulm J. Krömer, P. Bäuerle, in press
    • J. Krömer, Ph.D. Thesis, University of Ulm 2000. J. Krömer, P. Bäuerle, Tetrahedron, in press.
    • (2000) Tetrahedron
    • Krömer, J.1
  • 35
    • 0343674205 scopus 로고    scopus 로고
    • note
    • Single crystals of macrocycle 1 suited for X-ray structure analysis were grown by slow evaporation from mesitylene. X-ray structure analysis of ring-shaped structures, however, is inherently difficult since the large cavities in the crystal are typically filled by solvent molecules and cause structural disorder or destruction of the crystal when the solvent is lost. Additional disorder of some butyl side chains made the refinement extremely difficult (R-value after anisotropic refinement including all reflections was 0.34). Nevertheless, the packing feature of 1 is intriguing and a perfect hexagonal arrangement is found. Despite some uncertainty of the X-ray structure analysis, the lattice parameters are sufficiently accurate to be compared with the STM data in which distances typically exhibit an inaccuracy of ±0.1 Å. The top-view projection of crystal lattice along the a-axis is shown in Figure 6. Most interestingly, a perfect channel formation with diameters of nearly the cavity of the individual macrocycles is revealed (the butyl side chains are omitted for clarity). (figure presented)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.