Coordination chemistry of pyridines of Ni(100)

Journal Article · Wed Aug 22 04:00:00 EDT 1984 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00329a027· OSTI ID:6462614

Wexler, R M; Muetterties, E L

The coordination chemistry of methyl-substituted pyridine molecules on Ni(100) is described. The position of methyl substitution had a profound effect upon pyridine surface chemistry. 4-Methylpyridine behaved analogously to pyridine and showed extensive molecular desorption. The decomposition of this pyridine yielded H/sub 2/ in three different maxima: the data suggest that the first step yields ..cap alpha.. pyridyl and that CH/sub 3/ C-H bonds are now cleaved at low temperatures (as is the case for 3,5-dimethylpyridine). In contrast, both 2-methylpyridine and 2,6-dimethylpyridine show CH/sub 3/ C-H bond breaking at low temperatures. These results are discussed in terms of C/sub 5/N ring orientation with respect to the Ni(100) plane for this methylpyridine chemistry. 25 references, 4 figures, 1 table.

• Research Organization: Lawrence Berkeley Lab., CA
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6462614
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 106:17; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AZINES
CHEMICAL REACTIONS
CHEMISORPTION
DATA
DECOMPOSITION
DESORPTION
ELEMENTS
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HIGH TEMPERATURE
HYDROGEN
INFORMATION
LOW TEMPERATURE
MASS SPECTROSCOPY
MEDIUM TEMPERATURE
METALS
NICKEL
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS