A series of octahedral Ru(III), Rh(III) and Ir(III) complexes have been prepared with tetradentate Schiff bases derived by condensing isatin with 1,2-diaminoethane, 1,3-diaminopropane, 1,4-diaminobutane, 1,2-diaminobenzene and 1,3-diaminobenzene. The obtained complexes were characterized on the basis of their elemental analyses, magnetic moment, conductance, IR electronic, 1HNMR and FAB mass spectra, as well as thermal analyses. The Ru(III) complexes are low spin paramagnetic, while Rh(III) and Ir(III) behave as diamagnetic complexes. The IR spectral data revealed that all the Schiff bases behave as tetradentate and are coordinated to Ru(III), Rh(III) and Ir(III) via nitrogen and oxygen. Antifungal studies of the ligands as well as their complexes were carried out by the agar plate method.
Three complexes comprising ferrocenyl‐2‐pyridylimine and three d10 transition metal centers viz. Zn (II), Cd (II), and Hg (II) having formula [M (FcCH=NCH2(2‐py)] (M = Zn (II) (Zn‐Fc), Cd (II) (Cd‐Fc), and Hg (II) (Hg‐Fc); Fc = Ferrocene) are synthesized and their characterization have been done using microanalytical technique, FT‐IR and NMR spectroscopic methods. The optimized molecular geometries for all the three ferrocene‐based complexes revealed that the coordination geometries around the d10‐metal centers are distorted tetrahedral. The application of these complexes as sensitizers and co‐sensitizers/co‐adsorbents have been assessed in dye sensitized solar cells (DSSCs). Amid the three co‐sensitizers/co‐adsorbent based the DSSC set‐ups, the assembly fabricated using Zn‐Fc/N719 displayed superior performance with 5.71 ± 0.04% efficiency (η) indicating enhancement in the DSSC performance than to the set‐up constructed using solely N719 (η = 4.20 ± 0.05%).
Ternary oxides have been used as effective photocatalyst for carrying out number of chemical reactions. Method of preparation has major effect on the performance of these mixed oxide catalysts. In the present work, cerium iron oxide catalyst was synthesized using co-precipitation method and specific heating cycle. Synthesized catalyst was characterized using X-ray diffraction patterns. Photocatalytic degradation on gentian violet dye was observed using this catalyst and progress of the reaction was monitored spectrophotometrically. The effect of variation of different parameters like concentration of gentian violet, pH, amount of semiconductor and light intensity was also studied. A tentative mechanism for the photocatalytic bleaching of gentian violet has been proposed.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.