Home > Publications database > Bimetallic Organoplatinum(II)‐Ag(I) Cluster Cations with Ag−Pt Interactions Unsupported by Conventional Bridging Ligands > print

001     490863
005     20250724152159.0
024 7 _ |a 10.1002/zaac.202200019
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024 7 _ |a 0372-7874
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024 7 _ |a 0863-1778
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024 7 _ |a 0863-1786
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024 7 _ |a 1521-3749
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024 7 _ |a 10.3204/PUBDB-2022-08084
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082 _ _ |a 540
100 1 _ |a Raven, William
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245 _ _ |a Bimetallic Organoplatinum(II)‐Ag(I) Cluster Cations with Ag−Pt Interactions Unsupported by Conventional Bridging Ligands
260 _ _ |a Weinheim
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520 _ _ |a The organoplatinum complex of a primary amine and AgClO$_4$ aggregate in methanol to oligonuclear mixed-metal species. A perchlorate salt 3 with the empirical formula C$_{96}$H$_{146}$Ag$_7$Cl$_{13}$N$_{12}$O$_{62}$Pt$_6$ could be isolated and structurally characterized with the help of X-ray diffraction at the DESY synchrotron. The product contains both a penta- and a tetra-nuclear complex cation in which Ag(I) and Pt(II) alternate, held together without any conventional bridge. The cationic species feature short Ag⋅⋅⋅Pt distances between 2.7 and 2.9 Å and contacts longer than 2.4 Å between Ag and C atoms in aromatic rings. In addition to the interactions with Ag(I) cations, Pt(II) is in a square-planar arrangement, coordinated by a chelating and a terminal amine and an aqua ligand. The central Ag(I) in the pentanuclear cation is located on a twofold crystallographic axis and not involved in any obvious coordinative bond; it exclusively shows short contacts to the neighboring Pt(II) ions and the Pt-bonded, formally anionic carbon atoms of the cyclometallated organic ligand. Powder diffraction shows that 3 melts and re-solidifies without decomposition.
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700 1 _ |a Kalf, Irmgard
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700 1 _ |a Paulmann, Carsten
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700 1 _ |a Englert, Ulli
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773 _ _ |a 10.1002/zaac.202200019
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|t Zeitschrift für anorganische und allgemeine Chemie
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