Issue 39, 2017

Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs

Abstract

Herein, we report a simplified method for the synthesis of Triphos homologs H3CC(CH2X)n(CH2Y)3−n (X = SPh, Y = PPh2, n = 0–3). The multidentate compounds were tested for their potential to coordinate metals such as Ni, Fe, and Mo under the same experimental conditions. Cyclic voltammetry, spectroelectrochemical IR investigations as well as DFT calculations were used to examine the electronic alterations in a series of [{H3CC(CH2X)n(CH2Y)3−n}Mo(CO)3] complexes and to evaluate their potential to open coordination sites or to release CO upon oxidation or in the presence of different solvents. In addition, we demonstrate that the catalytic hydrosilylation of N,N-dimethylbenzamide to N,N-dimethylbenzylamine is influenced by the applied tripodal ligand. Our investigations show the high potential of such manipulations to selectively alter the dynamics of the binding properties of Triphos-metal complexes and their reactivity.

Graphical abstract: Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs

Supplementary files

Article information

Article type
Paper
Submitted
23 apr 2017
Accepted
10 jul 2017
First published
10 jul 2017

Dalton Trans., 2017,46, 13251-13262

Spectroscopic and reactivity differences in metal complexes derived from sulfur containing Triphos homologs

A. Petuker, P. Gerschel, S. Piontek, N. Ritterskamp, F. Wittkamp, L. Iffland, R. Miller, M. van Gastel and U.-P. Apfel, Dalton Trans., 2017, 46, 13251 DOI: 10.1039/C7DT01459G

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