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Platinum complexes bearing 2,2′-dipyridylamine ligand

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Abstract

The replacement of the iodide ligands in the complex [PtI2(dpa)] (1) (dpa is 2,2′-dipyridylamine) by silver triflate in acetonitrile afforded the compound [Pt(dpa)(MeCN)2](SO3CF3)2 (2). Homoleptic complexes [Pt(dpa)2](X)2 (3·(X)2) were synthesized by the treatment of [PtI2(dpa)] (1) with 2,2′-dipyridylamine in the presence of silver salts AgX in methanol (X = NO3) or acetonitrile (X = SO3CF3). The deprotonation of the complex [3](SO3CF3)2 to give the homoleptic complex [Pt(dpa-H)2] (4) was performed by two methods, e.g., by the treatment of [3](SO3CF3)2 with 2 equiv. of NaOH in methanol or by the addition of excess Et3N to a suspension of [3](SO3CF3)2 in methanol. The structures of compounds 1–4 were established by elemental analyses, high resolution electrospray ionization mass spectrometry, IR and NMR spectroscopy; the crystal structure of complexes [2](SO3CF3)2, [3](NO3)2·H2O, [3](SO3CF3)2·2H2O, and 4 were determined by single-crystal X-ray diffraction.

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Authors and Affiliations

  1. Department of Chemistry, Saint Petersburg State University, 26 Universitetsky prosp., 198504, Stary Petergof, Russian Federation

    Q. Wang, P. V. Gushchin, N. A. Bokach & V. Yu. Kukushkin

  2. Department of Chemistry, University of Eastern Finland, P.O. Box 111, FI-80101, Joensuu, Finland

    M. Haukka

  3. Institute of Macromolecular Compounds, Russian Academy of Sciences, V. O. 31 Bolshoii prosp., 199004, Saint Petersburg, Russian Federation

    V. Yu. Kukushkin

Authors
  1. Q. Wang
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  2. P. V. Gushchin
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  3. N. A. Bokach
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  4. M. Haukka
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  5. V. Yu. Kukushkin
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Correspondence to V. Yu. Kukushkin.

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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 0825–0832, April, 2012.

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Wang, Q., Gushchin, P.V., Bokach, N.A. et al. Platinum complexes bearing 2,2′-dipyridylamine ligand. Russ Chem Bull 61, 828–835 (2012). https://doi.org/10.1007/s11172-012-0115-5

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  • DOI: https://doi.org/10.1007/s11172-012-0115-5

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