Synthesis, molecular, crystal and electronic structures of [(C6H6)RuCl(HPz)2]Cl and [(C6H6)RuCl2(Me2HPz)]

Synthesis, spectroscopic and electronic characterizations of two half sandwich ruthenium(II) complexes with 2-(2′-hydroxyphenyl)-benzoxazole and 4-picolinic acid ligands

“…The carboxylate group and pyridyl moiety of 2 are inclined at 12.6(9)°, and Ru(1) atom deviates 0.33(1) from the aromatic ring lest squares plane. The bond lengths and angles in the studied complexes are comparable to those reported to analogues compounds [40].…”

Mechanistic aspects of the cycloaddition of CO2 with propylene oxide using the trans-Ru(py)4Cl2 catalyst

“…The bond lengths of Ru-Cl and Ru-N were 2.408 and 2.082 Å in the complex. The Ru-Cl distance was comparable with the distance in other ruthenium complexes containing nitrogen heterocyclic ligands [25,26]. …”

Reactivity studies of (η6-arene)ruthenium dimeric complexes towards pyrazoles: isolation of amidines, bis pyrazoles and chloro bridged pyrazole complexes

“…The formation of these complexes 5a and 5b were conveniently monitored by the peak ratio in the 1 H NMR spectra and by elemental analyses. The infrared spectra of these complexes show a strong band in the range of 3283-3138 cm À1 due to the m N-H mode of the pyrazole ligands [30]. In addition, the IR spectra contain strong bands at 1573-1527 cm À1 due to the m C-N mode of the pyrazole ligands, and a strong band at 1082 cm À1 due to the m B-F mode of the BF 4 group.…”