An Approach to Mixed PnAsm Ligand Complexes1. Issue 1 (13th November 2013)

• Record Type: Journal Article
• Authors: Schwarzmaier, Christoph; Bodensteiner, Michael; Timoshkin, Alexey Y.; Scheer, Manfred
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 1(2014)
• Page Start: 290
• Page End: 293
• Publication Date: 2013-11-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201308239
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The reaction of a P₄ butterfly complex with yellow arsenic yields the largest mixed P_nAs_m ligand complexes synthesized to date. [{Cp′′′Fe(CO)₂}₂(μ, η^1:1‐P₄)] reacts with As₄ to yield [{Cp′′′Fe}₂(μ, η^4:4‐P_{<italic>n</italic>}As_{4‐<italic>n</italic>})] and [Cp′′′Fe(η⁵‐P_{<italic>n</italic>}As_{5‐<italic>n</italic>})]. Mass spectrometry together with NMR spectroscopy and X‐ray crystallography give clear evidence about the arrangement of the E positions within the <italic>cyclo</italic>‐E₅ and E₄ moieties of the products. Moreover, the results of DFT calculations agree well with the experimental determined outcomes. By coordinating the E₄ complex [{Cp′′′Fe}₂(μ, η^4:4‐P_{<italic>n</italic>}As_{4‐<italic>n</italic>})] with CuCl, a rearrangement of the E positions occurs in favor with a preferred phosphorus coordination towards copper atoms in the resulting 1D polymeric chain.</p> </abstract>