Ruthenium(II)-arene complexes with monodentate aminopyridine ligands: Insights into redox stability and electronic structures and biological activity

Synthesis, Characterisation, and in vitro Cytotoxic Activity of Dithiocarbamato Glycoconjugate Half‐Sandwich Ruthenium and Osmium Complexes

“…As far as the dimer precursors [(η 6 -p-cym)Ru II Cl(μ-Cl)] 2 and [(η 6 -pcym)Os II Cl(μ-Cl)] 2 are concerned, bands recorded in the mid-IR range resembled those observed for the free p-cymene ligand with minor changes in terms of ñmax and intensities, and were assigned according to previous literature reports. [74][75][76][77] On the contrary, in the far-IR region no significant bands were recorded for the isolated p-cymene scaffold as expected, [78] whereas new bands appeared in the spectra of both metal dimers. In particular, vibrations at 296 ([(η 6 -pcym)Ru II Cl(μ-Cl)] 2 )/316 -304 ([(η 6 -p-cym)Os II Cl(μ-Cl)] 2 ) cm À 1 and 262-244 ([(η 6 -p-cym)Ru II Cl(μ-Cl)] 2 )/265 ([(η 6p-cym)Os II Cl(μ-Cl)] 2 ) cm À 1 are undoubtedly assigned to the metal-terminal chloride and metal-bridging chloride stretching modes, respectively.…”

“…IR Spectroscopy provided insights into the identification of the metal derivatives. As far as the dimer precursors [(η 6 ‐ p ‐cym)Ru II Cl(μ‐Cl)] 2 and [(η 6 ‐ p ‐cym)Os II Cl(μ‐Cl)] 2 are concerned, bands recorded in the mid‐IR range resembled those observed for the free p ‐cymene ligand with minor changes in terms of $${\tilde{\nu }}$$ max and intensities, and were assigned according to previous literature reports [74–77] . On the contrary, in the far‐IR region no significant bands were recorded for the isolated p ‐cymene scaffold as expected, [78] whereas new bands appeared in the spectra of both metal dimers.…”

Encapsulated Neutral Ruthenium Catalyst for Substrate‐Selective Oxidation of Alcohols

“…character. [20] Addition of 6.5 equivalents of resorcinarene 1 to the previous solution resulted in a slight red shift (12 nm) of the absorption band, consistent with the formation of inclusion complex 2�1 6 . The observed frequency difference between the free and the inclusion complex lies in the range reported for encapsulated cationic [Ir(ppy) 2 (bpy)]Cl [14a] and [Ru-(bpy) 3 ](OTf) 2 [15a] (ppy = 2-phenylpyridinate and bpy = 2,2'-bipyridine) complexes in 1 6 .…”

Investigating the X-aminopyridine (X = 2 and 3) molecules sensing by Al12N12 and B12N12 fullerene-like nanocages: DFT, QTAIM, RDG and TD-DFT insights

“…Moreover, during the last decade P zer developed Crizotinib and Lorlatinib, two 2-AP based drugs to treat non-small cell lung cancer (Camidge et al, 2012). It was also shown that cyclometalated complexes with 2-aminopyridine as ligands exhibit anticancer activity (Marszaukowski et al, 2019). 2-AP was described as pharmacologically potent with simple substitutions on it and can equally serve as an active starting material for the synthesis of other heterocyclic compounds (Rao & Chanda, 2002).…”