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Exchange Reactions in the Ion Source of a Mass Spectrometer

Volume 26, Number 1 (Feb. 1972) Page 104-105

Cichorz, Roger S.


Exchange reactions occurred in the ion source of a mass spectrometer during direct solid probe analyses of samples of tetra (cyclopentadienyl) uranium (IV) [UCp4, where Cp=C5H5, the cyclopentadieny lligand]. Tris(cyclopentadienyl) uranium (IV) fluoride, UCp3F, was formed according to the reaction UCp4 + MF → UCp3F + MCp. This mass spectrometer exchange phenomenon is the first reported for an actinide organometallic compound, although mass spectrometer ion-source exchange reactions between lanthanide chelates and alkali metal chelates have been observed previously.