Pentamethylcyclopentadienyl ruthenium(II) complexes of para-substituted N-(pyrid-2-ylmethylene)-phenylamine ligands: syntheses,spectral and structural studies |
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| Institution: | 1. Department of Chemistry, North-Eastern Hill University, Shillong 793022, India;2. Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA;1. Department of Chemistry, Tripura University, Suryamaninagar, 799130, Tripura, India;2. Department of Chemistry, Govt. Degree College, Dharmanagar, Tripura (N), India;3. Advanced Level Institutional Biotech Hub, Karimganj College, Karimganj, Assam, India;4. Department of Botany, R. K. Mahavidyalaya, Kailashahar, Unakoti Tripura, Tripura, India;5. Department of Chemistry, Ramthakur College, Agartala, Tripura (W), India;6. Department of Chemistry, National Institute of Technology (NIT) Agartala, 799046, Tripura, India;7. Departament de Quimica, Universitat de Les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca, Baleares, Spain;1. Helmholtz-Center Berlin for Materials and Energy, Hahn Meitner-Platz 1, 14109 Berlin, Germany;2. Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany;3. Institute of Macromolecular Chemistry, Albert-Ludwigs Universität of Freiburg, Stefan Meier-Str. 3, 79104 Freiburg, Germany;4. Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH at MLZ, Lichtenbergstraße, 185747 Garching, Germany;5. Institut Laue-Langevin, 71 Avenue des Martyrs – CS 20156, 38042 Grenoble, Cedex 9, France;6. Department of Physics, Humboldt Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany;7. Helmholtz Virtual Institute, Multifunctional Materials in Medicine, Berlin, Teltow, Germany;1. College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, Republic of Korea;2. Center for Innovative Drug Library Research, Department of Chemistry, College of Natural Science, Dongguk University-Seoul, 26 Pildong 3-ga, Jung-gu, Seoul 100-715, Republic of Korea;1. Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt;2. Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt;1. Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Avenida Universidad, Chamilpa, Cuernavaca, Mexico;2. Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, México, 04510, D.F., Mexico;1. Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O Box 311-86145, Shahreza, Isfahan, Iran;2. Razi Chemistry Research Center (RCRC), Shahreza Branch, Islamic Azad University, Isfahan, Iran |
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| Abstract: | The reaction of (η5-C5Me5)Ru(PPh3)2Cl] (1) with acetonitrile in the presence of excess NH4PF6 leads to the formation of the cationic ruthenium(II) complex (η5-C5Me5)Ru(PPh3)2(CH3CN)]PF6 (2). The complex (2) reacts with a series of N,N′ donor Schiff base ligands viz. para-substituted N-(pyrid-2-ylmethylene)-phenylamines (ppa) in methanol to yield pentamethylcylopentadienyl ruthenium(II) Schiff base complexes of the formulation (η5-C5Me5)Ru(PPh3)(C5H4N-2-CH N-C6H4-p-X)]PF6 3a]PF6–3f]PF6, where C5Me5 = pentamethylcylopentadienyl, X = H, 3a]PF6, Me, 3b]PF6, OMe, 3c]PF6, NO2, 3d]PF6, Cl, 3e]PF6, COOH, 3f]PF6. The complexes were isolated as their hexafluorophosphate salts. The complexes were fully characterized on the basis of elemental analyses and NMR spectroscopy. The molecular structure of a representative complex, (η5-C5Me5)Ru(PPh3)(C5H4N-2-CHN-C6H4-p-Cl)]PF6 3e]PF6, has been established by X-ray crystallography. |
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