Trovacenchemie. 13 [1] Weg und Irrweg zu Di([5]trovacenyl)keton

Autor:	Jürgen Pebler, Klaus Harms, Christoph Elschenbroich, Olaf Burghaus, Jörn Plackmeyer
Rok vydání:	2006
Předmět:	chemistry.chemical_classification Ketone Stereochemistry Exchange interaction Medicinal chemistry Dimethylcarbamoyl Chloride law.invention Inorganic Chemistry chemistry.chemical_compound chemistry law Cyclic voltammetry Benzene Electron paramagnetic resonance
Zdroj:	Zeitschrift für anorganische und allgemeine Chemie. 632:819-827
ISSN:	1521-3749 0044-2313
Popis:	Trovacene Chemistry. 13 [1] On Being Lead and Mislead in the Synthesis of Di([5]trovacenyl)ketone Di([5]trovacenyl)ketone (3¨) has been prepared from lithio-[5]trovacene and dimethylcarbamoyl chloride and studied by X-ray diffraction, cyclic voltammetry, magnetic susceptometry and EPR spectroscopy. Slight variation of the synthetic protocol affords an unusual trinuclear complex 5 that is also fully characterized. Spin-spin exchange interaction is smaller in 3¨ than in 1,1-di([5]trovacenylethene (2¨), which differs from 3¨ by a replacement of O for CH2. The novel trinuclear complex 5 , however, displays exchange coupling very similar to that observed in 1-methoxy-2,5,6-tri([5]trovacenyl)benzene (7 ). In both cases, an unsymmetrical triangular arrangement of S = 1/2 centers is encountered. These findings are discussed in terms of the nature of the respective spacers.
Databáze:	OpenAIRE
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