Synthesis and structural characterization of Be(η5-C5Me5)(η1-C5Me4H). Evidence for ring-inversion leading to Be(η5-C5Me4H)(η1-C5Me5)
Marı́a del Mar ConejoR. FernándezJosé C. del Rı́oErnesto CarmonaÁngeles MongeCristina Mayor Ruíz
Abstract
The mixed-ring beryllocene Be(C5Me5)(C5Me4H), that contains eta 5-C5Me5 and eta 1-C5Me4H rings, the latter bonded to the metal through the CH carbon atom (X-ray crystal structure) reacts at room temperature with CNXyl (Xyl = C6H3-2,6-Me2) to give an iminoacyl product, Be(eta 5-C5Me4H)[C(NXyl)C5Me5] derived from the inverted beryllocene structure Be (eta 5-C5Me4H)(eta 1-C5Me5).
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