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Volumn , Issue 8, 2010, Pages 1469-1482

Supramolecular assemblies derived from Formyl-Substituted π-Conjugated acyclic anion receptors

Author keywords

Anions; Boron; Formyl units; Pyrrole derivatives; Receptors; Supramolecular chemistry

Indexed keywords


EID: 77649215815     PISSN: 1434193X     EISSN: 10990690     Source Type: Journal    
DOI: 10.1002/ejoc.200901346     Document Type: Article
Times cited : (16)

References (99)
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    • The distances between π-planes in the β-ethyl-substituted derivatives in the solid state were 3.729 and 4.191 Å for α-phenyl compound 2c, 3.378 and 5.011 Å for α-pyrrolyl compound 2d, and 3.386 and 5.087 Å for the α-thienyl compound (not shown). On the other hand, α-H (2a) and α-furyl (not shown) formed only the stacking dimers without infinite columnar structures.
    • The distances between π-planes in the β-ethyl-substituted derivatives in the solid state were 3.729 and 4.191 Å for α-phenyl compound 2c, 3.378 and 5.011 Å for α-pyrrolyl compound 2d, and 3.386 and 5.087 Å for the α-thienyl compound (not shown). On the other hand, α-H (2a) and α-furyl (not shown) formed only the stacking dimers without infinite columnar structures.
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    • a) for anions.
    • a) for anions.
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    • [12a]
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    • -)
    • -) (Figure S10 in the Supporting Information), which were similar to the values of 2c. Therefore, the effect of the aminomethyl substituents did not seem very significant.
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    • The morphologies were significantly dependent on the preparation conditions (temperatures on drying, etc.); at least, only unspecific objects, such as spheres, were observed in the dried samples of the gelated materials. Further, spin-coating of the solution at room temp, on glass substrate afforded fibers in the case of free receptors and no morphologies in anion complexes.
    • The morphologies were significantly dependent on the preparation conditions (temperatures on drying, etc.); at least, only unspecific objects, such as spheres, were observed in the dried samples of the gelated materials. Further, spin-coating of the solution at room temp, on glass substrate afforded fibers in the case of free receptors and no morphologies in anion complexes.
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    • Theoretical studies at the AM 1 level for 5m2 and 5p2 suggested that the lengths of these receptors in one of the stable conformations were 6.3 and 6.7 mm, respectively (Figure S5 in the Supporting Information).
    • Theoretical studies at the AM 1 level for 5m2 and 5p2 suggested that the lengths of these receptors in one of the stable conformations were 6.3 and 6.7 mm, respectively (Figure S5 in the Supporting Information).
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    • DLS peak intensities are not always proportional to the amounts of the corresponding aggregates in the solution state. Larger objects often provide fairly intense light scattering in relation to smaller ones, so it is not easy to discuss the quantitative aspects only on the basis of DLS measurements, which may show less strong correlations with UV/Vis absorption spectra.
    • DLS peak intensities are not always proportional to the amounts of the corresponding aggregates in the solution state. Larger objects often provide fairly intense light scattering in relation to smaller ones, so it is not easy to discuss the quantitative aspects only on the basis of DLS measurements, which may show less strong correlations with UV/Vis absorption spectra.
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    • [26] (Figure Presented)
    • [26] (Figure Presented)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.