Synthesis, Characterization and Electrical Conductance of Ferrocenylazobenzene

Autor:	Hasiah Salleh, Siti Athirah Mohamad Jamali, Tei Tagg, Gurumurthy Hegde
Rok vydání:	2014
Předmět:	Chemistry General Chemistry Conductivity Condensed Matter Physics Photochemistry chemistry.chemical_compound Electrical resistance and conductance Azobenzene Oxalyl chloride Ferrocene Absorption band Electrical resistivity and conductivity Moiety Organic chemistry General Materials Science
Zdroj:	Molecular Crystals and Liquid Crystals. 604:142-150
ISSN:	1563-5287 1542-1406
DOI:	10.1080/15421406.2014.968081
Popis:	Ferrocenylazobenzene was synthesized by condensing an aminoazobenzene dye with ferrocenecarboxylic acid previously treated with oxalyl chloride. The compound displayed an anticipated chemically reversible one-electron oxidation process and gave a formal potential, E° = 0.65 V. In the UV-Vis region, the azo π-π* and n-π* transitions appeared at 355 and 460 nm respectively. On oxidation of the ferrocenyl moiety, the azo π-π* band was blue-shifted to 348 nm with an increase in intensity, while a new broad, lower energy absorption band assigned to the ligand-to-metal charge transfer appeared at 622 nm. The growth of this new band was concurrent with the bleaching of the metal-to-ligand charge transfer band which was largely obscured by the azo n-π* band at 460 nm. The compound in the form of thin film gave an average electrical conductivity of 0.239 ± 0.001 Scm−1 and a non-linear I-V curve with knee voltage at 2.3 V in dark condition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::54ba94d4e9feffa3b2f306ae639e096b https://doi.org/10.1080/15421406.2014.968081 Zobrazit plný text záznamu