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Synthesis and structural analysis of cis-bis(1,10-phenanthroline)dicarbonyl ruthenium(II) 1.72-trifluoromethanesulfonate 0.28-hexafluoridophosphate Takase, Tsugiko Oyama, Dai Carbonyl IR spectra Crystal structure Ruthenium complex 1 10-Phenanthroline Computational chemistry Ruthenium(II) complexes containing both 1,10-phenanthroline (Phen) and carbonyl (CO) ligands are important molecules for various applications including catalysis. In this work, the molecular structure of [Ru(Phen)2(CO)2]2+ was determined via X-ray diffraction analysis for the first time. The complex exhibits substitutional disorder of one of counter-anions in the asymmetric unit, with different occupancies for CF3SO3- (0.72) and PF6- (0.28). The ruthenium atom is coordinated in a distorted octahedral environment by two carbonyl carbon atoms and four nitrogen atoms from bis-Phen ligands. The cation displays a cis configuration of the carbonyl ligands. Several hydrogen bonds and π-π interactions are present in the crystal. In addition to structural characterization, IR spectral data for the complex is compared with calculated values. These results provide fundamental data for understanding various properties of related ruthenium complexes. Atlanta Publishing House LLC 2021-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/plain https://www.eurjchem.com/index.php/eurjchem/article/view/2151 10.5155/eurjchem.12.4.389-393.2151 European Journal of Chemistry; Vol. 12 No. 4 (2021): December 2021; 389-393 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/2151/pdf_2151 https://www.eurjchem.com/index.php/eurjchem/article/view/2151/2708 Copyright (c) 2021 Authors