Diplatinum(III) [Cl2(μ2-amidinate)4] compound derived from air oxidation of mononuclear cis-[Pt(NH3)2(amidine-κ)2] complex |
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| Authors: | Nadezhda A Bokach Marina R Tyan Grigory G Aleksandrov Matti Haukka Vadim Yu Kukushkin |
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| Affiliation: | 1. Department of Chemistry, St. Petersburg State University, 198504 Stary Petergof, Russian Federation;2. N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prosp. 31, 119991 Mosсow GSP-1, Russian Federation;3. Department of Chemistry, University of Joensuu, P.O. Box 111, FI-80101 Joensuu, Finland;4. Institute of Macromolecular Compounds of the Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 St. Petersburg, Russian Federation |
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| Abstract: | The dinuclear platinum(III) complex Pt2Cl2{μ2-N(H)C(Et)N(H)}4] (2) has been prepared by heating cis-Pt(NH3)2{NH C(NH2)Et}2](Cl)2 (cis-1) under aeration conditions in an EtOH/H2O mixture at 70 °C for 2 d and it was characterized by elemental analyses (C, H, N), ESI+-MS, IR, 1H and 13C NMR spectroscopies and also by X-ray diffraction. Complex 2 represents the second PtIII dimer stabilized by the amidinate ligand ever known and it has a lantern-type structure with four amidinate ligands bridging two PtIII centers with Pt–Pt distance of 2.4809(2) Å. |
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| Keywords: | Dinuclear complexes Platinum(III) Platinum– platinum bond Bridging ligands Amidinates Oxidation |
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