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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 2
BKCSDE 33(2)
February 20, 2012 

Electrochemical and Fluorescent Properties of Ferrocenyl Chalcones Containing 1-Naphthalenyl Group: X-ray Crystal Structure of Fc-C(O)CH=CH-(1-Naph)
Wooyoung Suh, Hyokyung Jeon, Ji-Yeon Lee, Chae-Mi Lim, Su-Kyung Lee, Dong-Youn Noh *
Ferrocenyl chalcone, Naphthalene, Electrochemistry, Fluorescence, X-ray crystal structure
Ferrocenyl chalcones (Fc-C(O)CH=CH-Ar: Fc-Ar) with mono- and di-1-naphthalenyl moieties (Fc-1Naph and Fc-d1Naph) were prepared and spectroscopically characterized. The enone bridge was in the s-cis conformation and the π-electrons on the C=C bond were further delocalized on the bridge. The naphthalenyl moiety deviates greatly from the enone-Cp plane by 26.9(1)o. Cyclic voltammetry measurements for Fc-1Naph exhibit one reversible cycle for the redox of the ferrocenyl moiety at a lower potential, and one irreversible oxidation peak at the higher potential region. For Fc-d1Naph, the cyclic voltammogram is more featureless. Fluorescence properties for both compounds are active in polar solvents with λem = 500 nm (EtOH) and λem = 512 nm (MeOH) for Fc-1Naph and λem = 496 nm (EtOH) and λem = 508 nm (MeOH) for Fc-d1Naph. The intensity of Fc-d1Naph is more than twice than that of Fc-1Naph. The fluorescence properties for both compounds are inactive in the less polar solvents such as CH3CN, CH2Cl2 and CHCl3.
443 - 448
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