A new set of multi-donor [ferrocene (D) and methoxyphenyl (D')] conjugated D-D'-π-A based dyes [Fc-(OCH-Ph)C[double bond, length as m-dash]CH-CH[double bond, length as m-dash]CN-R{R[double bond, length as m-dash]COOH (1) and CH-COOH (2)}] were synthesized as sensitizers for dye-sensitized solar cell (DSSC) applications. These dyes were characterized with the aid of analytical and spectroscopic techniques such as FT-IR, HR-Mass, and H and C NMR. The thermal stability of the dyes 1 and 2 were investigated using thermogravimetric analysis (TGA) and was found to be stable around 180 °C for dye 1 and 240 °C for dye 2.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
September 2022
A new ferrocene appended linear donor-π-acceptor (D-π-A) type 1,8-naphthalimide chromophores [FcPhNap-n-butyl (1) and Fc(Ph)Nap-n-butyl (2)] have been synthesized and characterized using various analytical and spectroscopic techniques. The chromophores 1 and 2 show the one-electron transfer process, which was examined through cyclic voltammetric (CV) method. The solvatochromic studies show red shift by increasing the solvent polarity from non-polar to polar for both the chromophores 1 and 2, due to the better stabilization of the more polarized excited state than the ground state in the polar solvent.
View Article and Find Full Text PDFNew Y-shaped ferrocene conjugated imidazole chromophores were prepared and fully characterized. The Y-shaped structure was confirmed by the single crystal X-ray diffraction technique. The chromophores show interesting second-order nonlinear optical (NLO) properties in solution, as determined by the Electric-Field Induced Second Harmonic generation (EFISH) technique.
View Article and Find Full Text PDFThe objective of this study was to compare intramedullary (IM) nail and IM screw fixation for reattachment of the proximal ulna. Preserved elbow anatomy served as the primary outcome and was defined as the distance between the coronoid process and the olecranon. A retrospective cohort study of 31 patients treated with IM fixation of the proximal ulna was performed.
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