Ruthenium(III) and iridium(III) complexes with nicotine |
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| Authors: | Francisca M. Albertí ,Juan J. Fiol,Angel Garcí a-Raso,Marta Torres,A. Terró n,Miquel Barceló -Oliver,Marí a J. Prieto,Virtudes Moreno,Elies Molins |
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| Affiliation: | 1. Departament de Química, Universitat de les Illes Balears and Inst Hlth Sci Res IUNICS, Campus UIB, Ctra. Valldemossa km 7.5, 07122 Palma de Mallorca, Spain;2. Departament de Química Inorgànica, Universitat de Barcelona, 08028 Barcelona, Spain;3. Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193 Bellaterra, Spain |
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| Abstract: | A new chloride-dimethylsulfoxide-ruthenium(III) complex with nicotine trans-[RuIIICl4(DMSO)[H-(Nicotine)]] (1) and three related iridium(III) complexes; [H-(Nicotine)]trans-[IrIIICl4(DMSO)2] (2), trans-[IrIIICl4(DMSO)[H-(Nicotine)]] (3) and mer-[IrIIICl3(DMSO)(Nicotine)2] (4) have been synthesized and characterized by spectroscopic techniques and by single crystal X-ray diffraction (1, 2, and 4). Protonated nicotine at pyrrolidine nitrogen is present in complexes 1 and 3 while two neutral nicotine ligands are observed in 4. In these three inner-sphere complexes coordination occurs through the pyridine nitrogen. Moreover, in the outer-sphere complex 2, an electrostatic interaction is observed between a cationic protonated nicotine at the pyrrolidine nitrogen and the anionic trans-[IrIIICl4(DMSO)2]¯ complex. |
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| Keywords: | Ruthenium complexes Iridium complexes X-ray structures Nicotine AFM studies |
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