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Ag[Fe(CO)5]2+: A Bare Silver Complex with Fe(CO)5 as a Ligand |
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| Authors: | Dr. Przemysław J. Malinowski Prof. Dr. Ingo Krossing |
| Affiliation: | 1. Institut für Anorganische und Analytische Chemie, Freiburger Materialforschungszentrum (FMF), Albert‐Ludwigs‐Universit?t Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany);2. Centre of New Technologies, University of Warsaw, ?wirki i Wigury 93, 02‐089 Warsaw (Poland) |
| Abstract: | Attempts to prepare Fe(CO)5+ from Ag[Al(ORF)4] (RF=C(CF3)3) and Fe(CO)5 in CH2Cl2 yielded the first complex of a neutral metal carbonyl bound to a simple metal cation. The Ag[Fe(CO)5]2+ cation consists of two Fe(CO)5 molecules coordinating Ag+ in an almost linear fashion. The ν(CO) modes are blue‐shifted compared to Fe(CO)5, with one band above 2143 cm?1 indicating that back‐bonding is heavily decreased in the Ag[Fe(CO)5]2+ cation. |
| Keywords: | carbonyl ligands pentacarbonyliron silver weakly coordinating anions |