Abstract
Mono-substituted 1,2,3-triazolylferrocene derivatives with nitro groups (2a–2c) had been synthesized and characterized. The UV–vis absorption spectra of these compounds corresponded to the assembled spectra of ferrocene and aryl substitute groups in comparison with the control compound 2d without a ferrocenyl, and the fluorescence spectra showed a maximum at about 380nm in CH2Cl2. The cyclic voltammograms of 2a–2c showed the quasi-reversible oxidation waves of the ferrocenyl groups, and these waves anodically shifted in comparison with the ferrocene standard due to the electron withdrawing effect of the 1,2,3-triazole ring and nitro groups. According to thermal polarizing microscopy, differential scanning calorimetry and powder X-ray diffraction studies, compounds 2a–2d were all non-mesomorphic and displayed crystal polymorphic phase transitions upon heating.
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