Issue 8, 2020

Double donation in trigonal planar iron–carbodiphosphorane complexes – a concise study on their spectroscopic and electronic properties

Abstract

We present the syntheses of trigonal planar coordinated Fe(II) carbodiphosphorane (CDPR) complexes, starting from iron(II)-bis(trimethylsilylamide) [Fe{N(SiMe3)2}2] and hexaphenyl-(CDPPh) and sym-dimethyltetraphenyl-carbodiphosphoranes (CDPMe), respectively. Both complexes [CDPPh-Fe{N(SiMe3)2}2] (1) and [CDPMe-Fe{N(SiMe3)2}2] (2) were examined in solution and in the solid state. 1 shows a dissociation equilibrium in solution which we monitored by variable temperature 1H-NMR spectroscopy. Magnetic measurements of 1 and 2 yielded a high spin configuration (S = 2) for both complexes. Quantum chemical calculations were performed to analyze the bonding situation in compound 1.

Graphical abstract: Double donation in trigonal planar iron–carbodiphosphorane complexes – a concise study on their spectroscopic and electronic properties

Supplementary files

Article information

Article type
Paper
Submitted
12 Dec 2019
Accepted
20 Jan 2020
First published
05 Feb 2020

Dalton Trans., 2020,49, 2537-2546

Double donation in trigonal planar iron–carbodiphosphorane complexes – a concise study on their spectroscopic and electronic properties

N. H. Kneusels, J. E. Münzer, K. Flosdorf, D. Jiang, B. Neumüller, L. Zhao, A. Eichhöfer, G. Frenking and I. Kuzu, Dalton Trans., 2020, 49, 2537 DOI: 10.1039/C9DT04725E

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