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Volumn 3, Issue 8-9, 2008, Pages 1277-1283

Synthetic molecular machine based on reversible end-to-interior and end-to-end loop formation triggered by electrochemical stimuli

Author keywords

Charge transfer; Electrochemistry; Molecular machines; Pseudorotaxanes; Supramolecular chemistry

Indexed keywords

ARTICLE; CHEMICAL MODEL; CHEMICAL STRUCTURE; ELECTROCHEMISTRY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; SPECTROPHOTOMETRY;

EID: 54849440779     PISSN: 18614728     EISSN: 1861471X     Source Type: Journal    
DOI: 10.1002/asia.200800054     Document Type: Article
Times cited : (54)

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    • One of the reviewers suspected that decomplexation of 4 seems to occur upon full reduction. Although the nature of the fully reduced species (40) has not been established, decomplexation of 4 does not seem to occur at least on the cyclic voltammetric time scale for the following reasons: a) Essentially the same cyclic voltammograms are obtained for 4 and no growth of the peaks corresponding to 3 is observed in the successive full scans, b) The anodic peak for 4 at -0.8 V is sharp, presumably owing to adsorption of the fully reduced species, but clearly different from the corresponding anodic peak for 3 in terms of both potential and current (Figure 3, c) When the scan potential is reversed at -1.0 V, the reoxidation peak occurs at the same potential, 0.45 V) as before Figure S4 in the Supporting Information
    • 0) has not been established, decomplexation of 4 does not seem to occur at least on the cyclic voltammetric time scale for the following reasons: a) Essentially the same cyclic voltammograms are obtained for 4 and no growth of the peaks corresponding to 3 is observed in the successive full scans, b) The anodic peak for 4 at -0.8 V is sharp, presumably owing to adsorption of the fully reduced species, but clearly different from the corresponding anodic peak for 3 in terms of both potential and current (Figure 3), c) When the scan potential is reversed at -1.0 V, the reoxidation peak occurs at the same potential (-0.45 V) as before (Figure S4 in the Supporting Information).
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    • The formation of intermolecular viologen radical cation dimers such as a 2:2 complex with a face-to-face dimer structure cannot be ruled out. However, the intermolecular dimerization should be entropically much more unfavorable; therefore it is less likely to happen at the concentration of the ligand (0.25 mM) employed in this study.
    • The formation of intermolecular viologen radical cation dimers such as a 2:2 complex with a face-to-face dimer structure cannot be ruled out. However, the intermolecular dimerization should be entropically much more unfavorable; therefore it is less likely to happen at the concentration of the ligand (0.25 mM) employed in this study.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.