Synthesis and characterization of new ruthenium(II) complexes containing coupled di(2-pyridyl) and 1,3-dithiole units

Syntheses, structures, and properties of tricarbonyl rhenium(I) heteronuclear complexes with the multidentate bridging ligand containing bis(2-pyridine) and carboxylic acid

“…p* (bpydt)) transition and/or LLCT (ligand-to-ligand charge transfer, Cl ? bpydt) transition [31,32,[43][44][45][46]. Compared to 2 and 3, complex 1 shows a blue shift of 6 nm as a result of the electron donor effect of -COOMe group [43,44].…”

“…Mebpydt, ClRe(CO) 3 (Medpydt) (1) and ClRe(CO) 3 (H 2 bpydt) (2) were prepared according to literature methods [31,32,36]. IR spectra were measured on a Vector22 Bruker spectrophotometer with KBr pellets in the 400À4000 cm À1 region.…”

“…The precursors ClRe(CO) 3 (Mebpydt) (1) and ClRe(CO) 3 (H 2 bpydt) (2) were prepared according to literature methods [31,32]. The rhenium(I) tricarbonyl building block 3 is obtained by hydrolysis and neutralization of the ester groups of 1, as shown in Scheme 1.…”

“…Recently, some ligands with both 1,3-dithiol-2-ylidene and bis(2-pyridine) units are studied [25][26][27][28][29][30][31][32][33][34][35]. For example, dimethyl 2-(di(2-pyridyl)methylene)-1,3-dithiole-4,5-dicarboxylate (Medpydt) has been used to prepare ClRe(CO) 3 (Medpydt) (1) and ClRe-(CO) 3 (H 2 bpydt) (2) [31,32].…”

“…For example, dimethyl 2-(di(2-pyridyl)methylene)-1,3-dithiole-4,5-dicarboxylate (Medpydt) has been used to prepare ClRe(CO) 3 (Medpydt) (1) and ClRe-(CO) 3 (H 2 bpydt) (2) [31,32]. In this paper, by deprotonation reaction of 2, complex [Bu 4 N][ClRe(CO) 3 …”