118 research outputs found
Reactivity of a Sterical Flexible Pentabenzylcyclopentadienyl Samarocene
Reactivity studies of the classical divalent lanthanide compound [CpSm] (Cp = pentabenzylcyclopentadienyl-anion) towards diphenyl dichalcogenides and d-element carbonyl complexes led to remarkable results. In the compounds obtained, a different number of Sm-C(phenyl) interactions and differently oriented benzyl groups were observed, suggesting—despite the preference of these interactions in [CpSm] described in previous studies—a flexible orientation of the benzyl groups and thus a variable steric shielding of the metal center by the ligand. The obtained compounds are either present as monometallic complexes (reduction of the dichalcogenides) or tetrametallic bridged compounds in the case of the d/f-element carbonyl complexes
Paradoxale Kontingenzbewältigung: zur Ästhetik der Stille in der populären Musik
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The author as nobody? Some reflections on modern authorship on the occasion of Shakespeare in Love
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Was der Fall ist: von Tat-Sachen und Gegebenheiten in den BBC-Dokumentationen Windrush (1998) und The Human Body (1998)
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"At the heart of it there's a melody": the astonishing Renaissance of Bill Fay
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Migration history of the Afro-Eurasian transition zone, c.300-1500:An introduction (with a chronological table of selected events of political and migration history)
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