Ion mobility studies of PdC{sub n}{sup +} clusters: Where are the fullerenes?

Journal Article · Thu Dec 14 04:00:00 EST 1995 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100050a003· OSTI ID:171388

Shelimov, K B; Jarrold, M F ^[1]

---

1. Northwestern Univ., Evanston, IL (United States)

Gas-phase ion mobility measurements have been used to study the structures and isomerization of PdC{sub n}{sup +} (n = 10-60) clusters. Non-fullerene isomers of PdC{sub n}{sup +} clusters are similar to those of C{sub n}{sup +} and MC{sub n}{sup +} (M = La and Nb) clusters, and include metal-containing mono- and bicyclic rings and graphite sheets. Neither endohedral nor nonendohedral PdC{sub n} {sup +} fullerene isomers are detected. When collisionally heated, PdC{sub n}{sup +} clusters efficiently convert into fullerenes, but the exothermicity of this process results in the loss of the Pd atom and the formation of a pure carbon cluster cation. PdC{sub n}{sup +} bicyclic rings with an odd number of carbon atoms efficiently isomerize into monocyclic rings, while no evidence is found for this isomerization process for bicyclic rings with an even number of carbon atoms. 18 refs., 4 figs.

• Sponsoring Organization: USDOE
• OSTI ID: 171388
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 50 Vol. 99; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
FULLERENES
ION DRIFT
ION MOBILITY
ISOMERIZATION
PALLADIUM COMPOUNDS
SOLID CLUSTERS
STRUCTURAL CHEMICAL ANALYSIS