[Yb(NH3)8][Yb(Pyr)6] – Elektrid‐induzierte Synthese und Kristallisation aus flüssigem Ammoniak |
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| Authors: | Klaus Müller‐Buschbaum Priv.‐Doz. Dr. |
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| Affiliation: | Institut für Anorganische Chemie, Universit?t zu K?ln, Greinstra?e 6, D‐50939 K?ln, Fax: 0221/470 5083Institut für Anorganische Chemie, Universit?t zu K?ln, Greinstra?e 6, D‐50939 K?ln, Fax: 0221/470 5083 |
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| Abstract: | [Yb(NH3)8][Yb(Pyr)6]: Electride Induced Synthesis and Crystallization from Liquid Ammonia Single crystalline yellow [Yb(NH3)8][Yb(Pyr)6] (Pyr? = pyrrolate anion, C4H4N?) was obtained by the reaction of ytterbium metal with pyrrole (C4H4NH) in liquid ammonia at ?35 °C. Significant excess of ammonia together with avoiding a pyrrole excess prevents formation of the molecular compound [Yb(Pyr)3(PyrH)2(NH3)2]. [Yb(NH3)8][Yb(Pyr)6] consists of two homoleptic ionic units and rapidly decomposes if removed from the ammonia atmosphere, viz. it shows an ammonia vapour pressure >1 bar. |
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| Keywords: | Lanthanides Pyrrole Crystal structure Ytterbium Ammonia Electrides |
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