High-nuclearity ruthenium carbonyl cluster chemistry. 9. Ligand substitution at decaruthenium carbonyl clusters

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Randles MD, Cifuentes MP, Moxey GJ, Zahl A, van Eldik R, Humphrey MG
Zeitschrift: Journal of Organometallic Chemistry
Verlag: ELSEVIER SCIENCE SA
Jahr der Veröffentlichung: 2017
Band: 849-850
Seitenbereich: 63-70
ISSN: 0022-328X


Abstract

The mono-to tri-substituted decaruthenium cluster anions [Ru-10(mu-H)(mu(6)-C)(CO)(24-x)(L)(x)](-) [L = P(C6H4Me-4)(3), AsPh3, SbPh3, x = 1-3] were prepared as their [PPh4](+) salts in moderate to good yields from reaction of [PPh4][Ru-10(mu-H)(mu(6)-C)(CO)(24)] with the corresponding group 15 ligands at room temperature in acetone. The tetrakis-substituted cluster Ru-10(mu(6)-C)(mu(3)-CO)(mu-CO)(CO)(19){P(C6H4Me-4)(3)}(4) was obtained in high yield from [PPh4](2)[Ru-10(mu(6)-C)(CO)(24)] and an excess of the phosphine under the same conditions; a single-crystal X-ray diffraction study revealed that the phosphines ligate at the vertices of the "giant tetrahedral" core. Kinetics studies of the formation of [PPh4][Ru-10(mu-H)(mu(6)-C)(AsPh3)(2)(CO)(22)] from [PPh4][Ru-10(mu-H)(mu(6)-C)(AsPh3)(CO)(23)] shows that ligand substitution at these giant tetrahedral clusters proceeds via a strongly associative pathway with the likely intermediacy of a Ru-Ru bond-cleaved intermediate. (C) 2017 Elsevier B.V. All rights reserved.


FAU-Autoren / FAU-Herausgeber

van Eldik, Rudi Prof. Dr.
Naturwissenschaftliche Fakultät
Zahl, Achim Dr.
Lehrstuhl für Bioanorganische Chemie


Zitierweisen

APA:
Randles, M.D., Cifuentes, M.P., Moxey, G.J., Zahl, A., van Eldik, R., & Humphrey, M.G. (2017). High-nuclearity ruthenium carbonyl cluster chemistry. 9. Ligand substitution at decaruthenium carbonyl clusters. Journal of Organometallic Chemistry, 849-850, 63-70. https://dx.doi.org/10.1016/j.jorganchem.2017.05.026

MLA:
Randles, Michael D., et al. "High-nuclearity ruthenium carbonyl cluster chemistry. 9. Ligand substitution at decaruthenium carbonyl clusters." Journal of Organometallic Chemistry 849-850 (2017): 63-70.

BibTeX: 

Zuletzt aktualisiert 2018-31-10 um 12:10