Triphosphane formation from the terminal zirconium phosphinidene [Cp2Zr=PDmp(PMe3)] (Dmp=2,6-MeS2C6H3) and crystal structure of DmpP(PPh2)(2)

Authors
Urnezius, E Lam, KC Rheingold, AL Protasiewicz, JD
Citation
E. Urnezius et al., Triphosphane formation from the terminal zirconium phosphinidene [Cp2Zr=PDmp(PMe3)] (Dmp=2,6-MeS2C6H3) and crystal structure of DmpP(PPh2)(2), J ORGMET CH, 630(2), 2001, pp. 193-197
Citations number
34
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
630
Issue
2
Year of publication
2001
Pages
193 - 197
Database
ISI
SICI code
0022-328X(20010709)630:2<193:TFFTTZ>2.0.ZU;2-6
Abstract
The new terminal phosphinidene complex [Cp2Zr=PDmp(PMe3)] (Dmp = 2,6-Mes(2) C(6)H(3); 1) was prepared in 81% yield by the reaction of [Li(Et2O)][P(H)Dm p] with [Cp2Zr(Me)Cl] in the presence of excess PMe3. Compound 1 reacts wit h Ph2PCl to produce selectively the sterically congested triphosphane DmpP( PPh2)(2) (2) and [Cp2ZrCl2] in high yields. The structure of 2 obtained by X-ray diffraction analysis of a single crystal reveals phosphorus-phosphoru s bond lengths of 2.251(2) and 2.234(2) Angstrom and a PPP bond angle of 10 5.46(6)degrees. (C) 2001 Elsevier Science B.V. All rights reserved.