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Metal cluster—rare gas van der Waals complexes: NbnArm and FenKrm

✍ Scribed by Mark B. Knickelbein; Warren J.C. Menezes

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
516 KB
Volume
184
Category
Article
ISSN
0009-2614

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✦ Synopsis

Van der Waals complexes of niobium clusters with argon atoms and iron clusters with krypton atoms have been produced in a supersonic expansion using a laser vaporization cluster source cooled to 77 K. Laser photoionization time-of-flight mass spectra reveal significant nonmonotonic cluster size dependence in the extent of formation for both Nb,Ar, and Fe,Kr species. Photoionization efficiency (PIE) spectra have been recorded for selected Nb,Ar, species for n < 20. For a given n, ionization potentials ( IPs) assigned from PIE threshold behavior decrease with increasing m. as predtcted by a simple charge-induced dipole electrostatic model.

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