Benzene C-D bond activation by free vanadium cluster cations

Journal Article · Thu Sep 07 00:00:00 EDT 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100355a048· OSTI ID:7171196

Zakin, M R; Cox, D M; Brickman, R O; Kaldor, A ^[1]

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1. Exxon Research and Engineering Co., Annandale, NJ (USA)

Reaction of free V{sub x}{sup +} (x < 20) with C{sub 6}D{sub 6} is found to proceed via facile initial chemisorption followed by activated C-D cleavage and D{sub 2} elimination. Species with varying deuterium content V{sub x}C{sub 6}D{sub m}{sup +} (m = 0, 2, 4, 6) are produced, whose relative abundances in turn vary considerably with cluster size. Further, sequential dehydrogenation channels are observed for several of the clusters. In contrast to the reaction of C{sub 6}D{sub 6} with Nb{sub x}, Nb{sub x}{sup +}, Pt{sub x}, and Rh{sub x}, for which primarily m = 0 and m = 6 are formed, all V{sub x}{sup +} larger than the trimer also give rise to partially dehydrogenated species with m = 2 or 4. A global correlation between the probability of V{sub x}C{sub 6}D{sub m}{sup +} formation and the rate of activated D{sub 2} chemisorption by V{sub x}{sup +} implicates cluster valence electronic structure in the C-D activation process. Deviations from this correlation exhibited by V{sub 13}{sup +} and V{sub 14}{sup +} are interpreted as evidence for a relatively compact and/or symmetric structure for these two clusters.

• OSTI ID: 7171196
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 93:18; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZENE
BONDING
CHEMICAL BONDS
DEUTERIUM
EXPERIMENTAL DATA
ISOTOPE EFFECTS
MEASURING INSTRUMENTS
MEASURING METHODS
VANADIUM IONS
AROMATICS
CHARGED PARTICLES
DATA
FABRICATION
HYDROCARBONS
HYDROGEN ISOTOPES
INFORMATION
IONS
ISOTOPES
JOINING
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
STABLE ISOTOPES
400000* - Chemistry
400200 - Inorganic
Organic
&amp; Physical Chemistry