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- W2040540111 abstract "Cp2ZrCl2 setzt sich mit Li(THF)2PHCy (Cy = C6H11) zu der metallacyclischen Verbindung Cp2 1, um. Im 31P{1H}-NMR-Spektrum von 1, tritt das für ein A2X-System zu erwartende Aufspaltungsmuster auf, was auf das Vorliegen der meso-Formen in Lösung hinweist. Auch im Festkörper liegen nur die meso-Formen vor. 1, kristallisiert monoklin in der Raumgruppe P21/n (Nr. 14) mit a = 12,984(8), b = 9,241(7), c = 23,05(1) Å, β = 93,48(4)°, V = 2760,1 Å3 und vier Formeleinheiten pro Elementarzelle (2718 unabhängige beobachtete Reflexe, R = 7,3%). Der zentrale ZrP3-Ring in 1, ist angenähert planar. Die ZrP-Bindungslängen sind mit 2,618(4) und 2,628(4) Å fast gleich. Synthesis and Crystal Structure of meso-(1,2,3-Tricyclohexyltriphosphane-1,3-diyl)zirconocene(IV), Cp2(Cp = η5−C5H5, Cy = C6H11) Cp2ZrCl2 reacts with Li(THF)2PHCy (Cy = C6H11) to yield the metallacyclic compound Cp2 1., The 31P{1H} NMR spectrum of 1, shows a coupling pattern for an A2X system, indicating the presence of only the meso-forms in solution, which are also present in the solid state. 1, crystallizes in the monoclinic space group P21/n (No. 14) with a = 12.984(8), b = 9.241(7), c = 23.05(1) Å, β = 93.48(4)°, V = 2760.1 Å3 and four formula units in the unit cell (2718 independent observed reflections, R = 7.3%). The central ZrP3 ring in 1, is almost planar. The ZrP bond lengths of 2.618(4) and 2.628(4) Å are nearly identical." @default.
- W2040540111 created "2016-06-24" @default.
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- W2040540111 date "1992-09-01" @default.
- W2040540111 modified "2023-10-16" @default.
- W2040540111 title "Synthese und Molek�lstruktur von meso-(1,2,3-Tricyclohexyltriphosphan-1,3-diyl)zirkonocen(IV), Cp2 (Cp = ?5?C5H5, Cy = C6H11)" @default.
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- W2040540111 doi "https://doi.org/10.1002/zaac.19926150907" @default.
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