Synthesis of [(tmeda)LiCH2PMe2Li(tmeda)CH2PMe2] (tmeda = tetramethyl- ethylenediamine) and of a binuclear zirconocene phosphine functionalized ketene complex, [(η-C5H5)2CIZr(PMe2CH=CO)ZrCI(η-C5H5)2] (both structurally characterized), the latter via carbonylation of ‘[(η-C5H5)2ZrCI(CH2PMe2)]’

Lutz M. Engelhardt, Geraldine E. Jacobsen, Colin L. Raston, Allan H. White

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Abstract

Reaction of [(tmeda)LiCH2PMe2Li(tmeda)CH2PMe2), (1), (tmeda = tetramethylethylenediamine) with [(η-C5H5)2ZrCy in tetrahydrofuran at -78 °C yields [(η-C5H5)2Zr(CH2PMe2)nCl2−n], n = 1, (2), or n = 2, (3); carbonylation of (2) affords exclusively a novel binuclear ketene complex, [(η-C5H5)2CIZr(PMe2CH=CO)ZrCI(η-C5H5)2], (4), which in the crystal form possesses a Zr-P linkage [2.724(5) Å].

Original languageEnglish
Pages (from-to)220-222
Number of pages3
JournalJournal of the Chemical Society - Series Chemical Communications
Issue number4
DOIs
Publication statusPublished - 15 Feb 1984
Externally publishedYes

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Dive into the research topics of 'Synthesis of [(tmeda)LiCH<sub>2</sub>PMe<sub>2</sub>Li(tmeda)CH<sub>2</sub>PMe<sub>2</sub>] (tmeda = tetramethyl- ethylenediamine) and of a binuclear zirconocene phosphine functionalized ketene complex, [(η-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>CIZr(PMe<sub>2</sub>CH=CO)ZrCI(η-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>] (both structurally characterized), the latter via carbonylation of ‘[(η-C<sub>5</sub>H<sub>5</sub>)<sub>2</sub>ZrCI(CH<sub>2</sub>PMe<sub>2</sub>)]’'. Together they form a unique fingerprint.

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