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Stable salts of the hexacarbonyl chromium(I) cation and its pentacarbonyl-nitrosyl chromium(I) analogue

Bohnenberger, Jan; Feuerstein, Wolfram; Himmel, Daniel; Daub, Michael; Breher, Frank; Krossing, Ingo

Homoleptic carbonyl radical cations are a textbook family of complexes hitherto unknown in the condensed phase, leaving their properties and applications fundamentally unexplored. Here we report on two stable 17-electron [Cr(CO)6]•+ salts that were synthesized by oxidation of Cr(CO)6 with [NO]+[Al(ORF)4]− (RF = C(CF3)3)) in CH2Cl2 and with removal of NO gas. Longer reaction times led to NO/CO ligand exchange and formation of the thermodynamically more stable 18-electron species [Cr(CO)5(NO)]+, which belongs to the family of heteroleptic chromium carbonyl/nitrosyl cations. All salts were fully characterized (IR, Raman, EPR, NMR, scXRD, pXRD, magnetics) and are stable at room temperature under inert conditions over months. The facile synthesis of these species enables the thorough investigation of their properties and applications to a broad scientific community.

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Verlagsausgabe §
DOI: 10.5445/IR/1000091206
Veröffentlicht am 19.02.2019
DOI: 10.1038/s41467-019-08517-2
Zitationen: 3
Web of Science
Zitationen: 2
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2041-1723
KITopen-ID: 1000091206
Erschienen in Nature Communications
Band 10
Heft 1
Seiten Art. Nr.: 624
Vorab online veröffentlicht am 07.02.2019
Nachgewiesen in Web of Science
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