Issue 55, 2023

Unusual coordination mode for 1,3-diphosphete ligands towards a Cr–Cr quintuple bond complex

Abstract

The reaction of LCr[5 with combining low line]CrL (L = N2C25H29, 1) with the phosphaalkynes R–C≡P (R = tBu, Me, Ad) yields the neutral dimerisation compounds [L2Cr2(μ,η1122-P2C2R2)] (R = tBu (2), Me (3)) and the tetrahedrane complex [L2Cr2(μ,η22-P[double bond, length as m-dash]CAd)] (4). The 1,3-diphosphete ligands in complexes 2 and 3 are the first to possess this structural feature spanned over a metal–metal multiple bond, while the slightly bigger adamantyl phosphaalkyne remains a monomer in 4 with a side-on coordination mode.

Graphical abstract: Unusual coordination mode for 1,3-diphosphete ligands towards a Cr–Cr quintuple bond complex

Supplementary files

Article information

Article type
Communication
Submitted
20 Mar 2023
Accepted
14 Jun 2023
First published
15 Jun 2023

Chem. Commun., 2023,59, 8588-8591

Unusual coordination mode for 1,3-diphosphete ligands towards a Cr–Cr quintuple bond complex

M. Elsayed Moussa, E.-M. Rummel, G. Balázs, C. Riesinger, A. Noor, R. Kempe and M. Scheer, Chem. Commun., 2023, 59, 8588 DOI: 10.1039/D3CC01358H

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