Gas-phase reactions of LaFe/sup +/ with alkanes

Journal Article · Wed Jan 20 04:00:00 EST 1988 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00210a012· OSTI ID:5523059

Huang, Y; Freiser, B S

The formation and reactions of LaFe/sup +/ with saturated hydrocarbons are reported. Laser-generated La/sup +/ reacts with iron pentacarbonyl to yield predominantly LaFe(CO)/sub 3//sup +/, which upon collisional activation yields LaFe/sup +/. The reactions of LaFe/sup +/ with alkanes are quite different from that of either La/sup +/ or Fe/sup +/. Dehydrogenation is common for the reactions of LaFe/sup +/ with alkanes. Dehydrogenation and methane elimination are observed for the reaction of neopentane with LaFe/sup +/. Carbon-carbon cleavage and dehydrogenation occur in the reactions of LaFe/sup +/ with C/sub 3/ and C/sub 4/ cyclic alkanes, while dehydrogenation is observed exclusively for cyclopentane, cyclohexane, and methylcyclohexane. The reactivity of LaFe/sup +/ is particularly interesting in that several other heterodinuclear ions have been observed to be unreactive with alkanes, although their constituent monoatomic ions are reactive. D/sup 0/(La/sup +/Fe) was determined to be 48 +/- 5 kcal/mol by photodissociation.

• Research Organization: Purdue Univ., West Lafayette, IN
• DOE Contract Number: AC02-80ER10689
• OSTI ID: 5523059
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 110:2; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
INFORMATION
IRON COMPOUNDS
LANTHANUM COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
RARE EARTH COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS