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Inorganics 2016, 4(4), 40; doi:10.3390/inorganics4040040

Synthesis and Characterization of a Sulfonyl- and Iminophosphoryl-Functionalized Methanide and Methandiide

Lehrstuhl für Anorganische Chemie II, Ruhr-Universität Bochum, Universitätsstraße 150, 44780 Bochum, Germany
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Academic Editor: Matthias Westerhausen
Received: 2 November 2016 / Revised: 24 November 2016 / Accepted: 29 November 2016 / Published: 2 December 2016
(This article belongs to the Special Issue s-Block Metal Complexes)
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Abstract

The synthesis of [H2C(PPh2=NSiMe3)(SO2Ph)] (1) and its mono- and dimetalation are reported. Due to the strong anion-stabilizing abilities of the iminophosphoryl and the sulfonyl group monometalation to 1-K and dimetalation to 1-Li2 proceed smoothly with potassium hydride and methyllithium, respectively. Both compounds could be isolated in high yields and were characterized by NMR spectroscopy as well as XRD analysis. The methanide 1-K forms a coordination polymer in the solid state, while in case of the methandiide a tetrameric structure is observed. The latter features an unusual structural motif consisting of two (SO2Li)2 eight-membered rings, which are connected with each other via the methandiide carbon atoms and additional lithium atoms. With increasing metalation a contraction of the P–C–S linkage is observed, which is well in line with the increased charge at the central carbon atom and involved electrostatic interactions. View Full-Text
Keywords: methandiides; lithium; potassium; molecular structures methandiides; lithium; potassium; molecular structures
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MDPI and ACS Style

Feichtner, K.-S.; Gessner, V.H. Synthesis and Characterization of a Sulfonyl- and Iminophosphoryl-Functionalized Methanide and Methandiide. Inorganics 2016, 4, 40.

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