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- W2006223889 abstract "The new cyclopentadienylarsanes CpxAsR2 (Cpx=Me5C5, R=H 1, Et 2, iPr 3, tBu 4; Cpx=Me3H2C5, R=Cl 5, Et 6, iPr 7) were synthesized via metathesis reactions in satisfactory to good yields. 2–7 were characterized by 1H- and 13C-NMR-spectroscopy, mass spectrometry and CH-analysis. The dihydrido compound 1 is stable at room temperature for a short time only, it decomposes already at −70°C under formation of an As-film. The solid-state structure of 4 as well as temperature dependent 1H- and 13C NMR-spectra indicate steric overcrowding. 4 crystallises in space group P21/c, a=12.021(2) Å, b=9.488(2) Å, c=16.972(2) Å, β=110.830(10)°, V=1809.2(5) Å3, Z=4, RF=0.0483. Pyrolysis-studies on the cyclopentadienyl(dialkyl)arsanes 2–4, 6 and 7 show their potential suitability as precursors in the MOCVD- and the MOMBE-process. Die neuen Cyclopentadienylarsane CpxAsR2 (Cpx=Me5C5, R=H 1, Et 2, iPr 3, tBu 4; Cpx=Me3H2C5, R=Cl 5, Et 6, iPr 7) wurden über 0Metathesereaktionen in befriedigenden bis guten Ausbeuten synthetisiert. 2–7 wurden durch 1H- und 13C-NMR-Spektroskopie, Massenspektrometrie sowie CH-Analyse charakterisiert. Die Dihydrido–Verbindung 1 ist kurzzeitig bei Zimmertemperatur stabil, zersetzt sich aber bereits bei −70°C unter Bildung eines Arsenfilms. Die Festkörperstruktur sowie temperaturabhängige 1H- und 13C-NMR-Spektren von 4 zeigen Befunde für starke sterische Hinderung. 4 kristallisiert in der Raumgruppe P21/c, a=12.021(2) Å, b=9.488(2) Å, c=16.972(2) Å, β=110.830(10)°, V=1809.2(5) Å3, Z=4, RF=0.0483. Pyrolyse-Studien an den Cyclopentadienyl(dialkyl)arsanen 2–4, 6 und 7 zeigen deren potentielle Tanglichkeit als Precursor-Moleküle im MOCVD- und MOMBE-Prozeß." @default.
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- W2006223889 title "Synthese und Charakterisierung neuer Cyclopentadienylarsen-Verbindungen" @default.
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- W2006223889 doi "https://doi.org/10.1016/s0022-328x(97)00588-3" @default.
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