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P—Η-funktionelle Zirkonocen-Phosphido-Komplexe und Struktur eines Diazoalkan-Insertionsprodukts / P—H Functionalized Zirconocene Phosphido Complexes and the Crystal Struc...
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Titel: |
P—Η-funktionelle Zirkonocen-Phosphido-Komplexe und Struktur eines Diazoalkan-Insertionsprodukts / P—H Functionalized Zirconocene Phosphido Complexes and the Crystal Structure of a Diazoalkane Insertion Product |
In: | Zeitschrift für Naturforschung B, 44, 1989, 12, S. 1538-1544 |
veröffentlicht: |
Walter de Gruyter GmbH
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Umfang: | 1538-1544 |
ISSN: |
1865-7117 0932-0776 |
DOI: | 10.1515/znb-1989-1212 |
Zusammenfassung: | <jats:p>The reaction of Cp<jats:sub>2</jats:sub>ZrCl<jats:sub>2</jats:sub> with [Li(THF)<jats:sub>2</jats:sub>PHMes]<jats:sub>n</jats:sub>(1) Mes = 2,4,6-Me<jats:sub>3</jats:sub>–C<jats:sub>6</jats:sub>H<jats:sub>2</jats:sub>) at –78°C yields Cp<jats:sub>2</jats:sub>Zr(PHMes)(X), with X = Cl (2) (1:1 reaction), X = PHMes (3) (1:2 reaction). Although 2 and 3 could not be obtained in a pure state, NMR spectroscopic investigations confirm the proposed formulae. 2 reacts with diphenyldiazomethane at ambient temperature with insertion of the N<jats:sub>2</jats:sub>CPh<jats:sub>2</jats:sub> molecule into the Zr–P bond and formation of [xxx] (4). An X-ray structure determination of 4 shows the η<jats:sup>2</jats:sup>-bonding mode of the phosphinohydrazonido(1–) ligand to the Zr atom (Zr–N(1) 2.181(6) A; Zr–N(2) 2.205(6) A). Crystal data: space group P2<jats:sub>1</jats:sub>/n, Z = 4, (2581 observed independent reflexions, R = 0.063). Cell dimensions (19°C): a = 11.820(2), b = 18.361(2), c = 13.758(2) Å, β = 103.86(2)°.</jats:p> |
Format: | E-Article |
Quelle: | Walter de Gruyter GmbH (CrossRef) |
Sprache: | Englisch |