The less polar fractions of the extract of the aerial parts of Jurinea leptoloba afforded two new elemanolides. The structures were elucidated by high field NMR techniques

The bulk structure of the ?-Al5Fe2 intermetallic compound consists in an ordered framework pentagonal antiprims with composition Al2Fe inside which nearly continuous chains fractionally occupied Al sites exist. At low temperature, ordering these channel atoms can occur, leading to various superstructures. Although Al5Fe2 phase is technological importance being present protective coating for ste...

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