Cyclopentadienyl rubidium

In favourable cases, however, careful inspection of the powder XRD data alone may allow the presence of more than one phase to be identified without utilizing information from other techniques, as illustrated in the structure determination of cyclopentadienyl rubidium [96] fi om the powder XRD pattern of a mixture of two polymorphs. Initial attempts to index the powder XRD pattern failed, but closer... 

Structural studies of allylmetal derivatives have also been performed [2]. In allyl compounds in ethereal solvents, the cesium ion is well solvated and an allyl anion is formed. Crystals of cyclopentadienyl rubidium and cesium, which complexed with 18-crown-6, have been isolated and analyzed by X-ray diffraction [3]. 

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