Issue 31, 2021

GeClx[Co(CO)3PR3]4−x (x = 0–3; R = nPr, nBu): from cobalt substituted germanes to novel binary cluster compounds.

Abstract

The synthesis of a variety of cobalt substituted germanes of the composition GeClx[Co(CO)3PR3]4−x (x = 0–3; R = nPr, nBu) is presented, which can be obtained in average to good yields from a reaction of GeCl2·dioxane and Co2(CO)8 or KCo(CO)4 in the presence of the respective phosphine. Reductive coupling reactions with potassium/benzophenone lead to ligand scrambling while the reductive coupling with Mg/MgBr2 leads to the pseudo-cubic cluster compound Ge7Co(CO)3[Co(CO)3PnBu3]72, showing that the mixed substituted germanes are powerful precursors to this new class of cluster compounds. All compounds are structurally characterized and well observable via NMR and IR spectroscopy.

Graphical abstract: GeClx[Co(CO)3PR3]4−x (x = 0–3; R = nPr, nBu): from cobalt substituted germanes to novel binary cluster compounds.

Supplementary files

Article information

Article type
Paper
Submitted
17 Jūn. 2021
Accepted
14 Jūl. 2021
First published
15 Jūl. 2021

Dalton Trans., 2021,50, 10789-10797

GeClx[Co(CO)3PR3]4−x (x = 0–3; R = nPr, nBu): from cobalt substituted germanes to novel binary cluster compounds.

L. Preißing, E. Behling and A. Schnepf, Dalton Trans., 2021, 50, 10789 DOI: 10.1039/D1DT02016A

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