✦ LIBER ✦

Formation of metal cluster ions by gas-phase ion-molecule reactions: The bond energies of Cr2+ AND Mn2+

✍ Scribed by R. Houriet; T. Vulpius

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 272 KB
Volume: 154
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87130-1

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✦ Synopsis

Ion-molecule reactions occurring in Cr(CO)*, Fe(CO),, and Mns(C0) !,, systems are carried out in a Fourier transform ion cyclotron resonance (FTICR) spectrometer. Abundant intensities of bare metal cluster ions can be formed by employing a multiple pulse sequence including selective ejections and photodissociation.

In subsequent collisional activation experiments, the binding energies of Cr: and Mn$ are determined as 1.6? 0.2 and 2.1 ? 0.3 eV, respectively, the latter being in conflict with a previously reported value

Recent experiments with atomic metal ions have provided a growing amount of information on the reactivity and thermochemistry of transition-metal compounds. The interest in these systems lies in their importance as intermediates in catalytic reactions

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