Dichlorotetrakis(dimethyl sulphoxide)ruthenium(II) and its use as a source material for some new ruthenium(II) complexes

Diastereoselective synthesis of coordination compounds: a chiral tripodal ligand based on bipyridine units and its ruthenium(ii) and iron(ii) complexes

“…Unless otherwise stated, commercial grade reagents were used without further purification. The following materials were prepared according to literature procedures: 4,5-pineno-2,2'-bipyridine (1) [9] , 2-(2'-iodoethoxy)ethyl-2''-tetrahydro-2H-pyran ether [14] , 1,3,5-tris-bromomethyl-benzene (2) [15] and Ru(DMSO) 4 Cl 2 [16] .…”

Dinuclear iron, ruthenium and cobalt complexes containing 1,4-dimethyl-1,4,7-triazacyclononane ligands as well as carboxylato and oxo or hydroxo bridges

“…The starting compound, 1,4-dimethyl-1,4,7-triazacyclononane (L-Me 2 ), was prepared according to the published method [17] and redistilled prior to use. The ruthenium(II) complex RuCl 2 (dmso) 4 was synthesised by a procedure reported by Spencer and Wilkinson [18]. Iron(II) sulfate heptahydrate, iron(II) chloride, cobalt(II) chloride hexahydrate, sodium formate monohydrate, sodium acetate trihydrate, sodium 4 (436 mg, 0.90 mmol) was suspended in 10 mL of absolute ethanol.…”

Synthesis and characterization of some new ruthenium (II) complexes as photosensitizers in dye-sensitized solar cells

“…The coordination of ruthenium with 2,2'-bipyridine is indicated by the shift of the two characteristic bands of free 2,2'-bipyridine from 1578 cm -1 and 1557 cm -1 to 1520 cm -1 and 1500 cm -1 , respectively in the complex [25,24]. Finally, the disappearance of the two characteristic bands of ν-SO at 1091cm -1 and 1013 cm -1 for DMSO indicate the complete substitution of DMSO [26]. [25,24].…”

“…[25,24]. Finally, the presence of coordinated DMSO in the complex is indicated by the presence of two characteristic peaks for SO at 1088cm -1 and 1013cm -1 of DMSO [26]. The UV-Vis absorbance spectra of the studied complexes were recorded at room temperature using ethanol or DMF as a solvent and are shown in Fig.…”