Coordinatively and electronically unsaturated tetraruthenium clusters: Reversible triple CO addition to Ru-4(CO)(9)(mu-PPh2)[mu(4)-Ph2PCC(Ph)CC(Ph)]

E Delgado, Y Chi, WB Wang, G Hogarth, PJ Low, GD Enright, SM Peng, GH Lee, AJ Carty

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Two electronically unsaturated tetraruthenium clusters, Ru-4(CO)(9)(mu-PPh2)[mu(4)-Ph2PCC(Ph) CC(Ph)] (2) and Ru-4(CO)(10)(mu-PPh2)[mu(4)-Ph2PC(Ph)CCC(Ph)] (3), with spiked-triangular and open-chain structures have been synthesized via head-to-tail and head-to-head coupling of binuclear acetylides: cluster 2 contains a coordinatively unsaturated metal center and undergoes a. fully reversible triple addition of carbon monoxide to afford Ru-4(CO)(11)(mu-PPh2)[mu(4)-Ph2PC(O)CC(Ph)CC(Ph)] (4).

Original languageEnglish
Pages (from-to)2936-2938
Number of pages3
Issue number14
Publication statusPublished - 6 Jul 1998

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