The Electronic Ground State of [Fe(CO)3(NO)]−: A Spectroscopic and Theoretical Study. Issue 7 (30th January 2014)

• Record Type: Journal Article
• Authors: Klein, Johannes E. M. N.; Miehlich, Burkhard; Holzwarth, Michael S.; Bauer, Matthias; Milek, Magdalena; Khusniyarov, Marat M.; Knizia, Gerald; Werner, Hans‐Joachim; Plietker, Bernd
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 7(2014)
• Page Start: 1790
• Page End: 1794
• Publication Date: 2014-01-30
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201309767
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>During the past 10 years iron‐catalyzed reactions have become established in the field of organic synthesis. For example, the complex anion [Fe(CO)₃(NO)]⁻, which was originally described by Hogsed and Hieber, shows catalytic activity in various organic reactions. This anion is commonly regarded as being isoelectronic with [Fe(CO)₄]²⁻, which, however, shows poor catalytic activity. The spectroscopic and quantum chemical investigations presented herein reveal that the complex ferrate [Fe(CO)₃(NO)]⁻ cannot be regarded as a Fe^−II species, but rather is predominantly a Fe⁰ species, in which the metal is covalently bonded to NO⁻ by two π‐bonds. A metal–N σ‐bond is not observed.</p> </abstract>