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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 241 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 235 | - |
dc.citation.title | CHEMISTRY-A EUROPEAN JOURNAL | - |
dc.citation.volume | 11 | - |
dc.contributor.author | Park, SJ | - |
dc.contributor.author | Shin, DM | - |
dc.contributor.author | Sakamoto, S | - |
dc.contributor.author | Yamaguchi, K | - |
dc.contributor.author | Chung, YK | - |
dc.contributor.author | Lah, Myoung Soo | - |
dc.contributor.author | Hong, JI | - |
dc.date.accessioned | 2023-12-22T10:39:53Z | - |
dc.date.available | 2023-12-22T10:39:53Z | - |
dc.date.created | 2014-09-12 | - |
dc.date.issued | 2005 | - |
dc.description.abstract | The metal-induced self-assembly of a resorcin[4]arene derivative 1 that has four pyridine units as pendent groups and two equivalents of [M(dppp)(OTf) 2] (M=Pd, Pt) results in a dynamic equilibrium between an interclipped supramolecular capsule 3 and an intraclipped bowl 4 in nitromethane, although the interclipped capsule 3 is formed as a sole adduct in chloroform/methanol and the intraclipped bowl 4 is formed exclusively in an aqueous phase. This demonstrates how metal-induced self-assembly can be tuned by subtle changes in the solvent system. The coexistence of the two structures in nitromethane was characterized by NMR spectroscopy and coldspray ionization mass spectrometry (CSI-MS). The crystal structure of the interclipped capsule 3b, which is composed of two units of ligand 1 and four PtII ions, reveals the capsule cavity to have nanoscale dimensions of 15 × 20 A. NMR spectra show that the dynamic equilibrium between 3 and 4 is dependent on concentration and temperature. Temperature-dependent 1H NMR spectroscopy was carried out from 273 to 343 K to verify the thermodynamic parameters that control the dynamic equilibrium process; the conversion from the interclipped supramolecular capsule 3 a to the intraclipped bowl 4 a is entropically favored and enthalpically disfavored. The rotational barrier of the restricted rotation of pyridine units in the intraclipped bowl 4 was determined by line-shape analysis. | - |
dc.identifier.bibliographicCitation | CHEMISTRY-A EUROPEAN JOURNAL, v.11, no.1, pp.235 - 241 | - |
dc.identifier.doi | 10.1002/chem.200400801 | - |
dc.identifier.issn | 0947-6539 | - |
dc.identifier.scopusid | 2-s2.0-19944429121 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6070 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=19944429121 | - |
dc.identifier.wosid | 000226278700021 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Dynamic equilibrium between a supramolecular capsule and bowl generated by inter- and intramolecular metal clipping | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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