EPR study of Gallium atoms in benzene

Journal Article · Thu Sep 05 04:00:00 EDT 1991 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100171a015· OSTI ID:5260545

Howard, J A; Joly, H A; Mile, B; Sutcliffe, R ^[1]

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1. National Research Council of Canada, Ottawa, Ontario (Canada)

An EPR study of a Ga atom matrix isolated in benzene at 77 K has revealed the presence of a paramagnetic species with the magnetic parameters {alpha}{sub zz}(69) = 256 MHz, {alpha}{sub xx}(69) = 270 MHz, {alpha}{sub yy}(69) = 284 MHz, {alpha}{sub zz}(71) = 325 MHz, {alpha}{sub xx}(71) = 343 MHz, {alpha}{sub yy}(71) = 361 Mhz, g{sub zz} = 1.9970, g{approximately}{sub xx} = 1.9750, and g{sub yy} = 1.9350. These parameters are consistent with a trapped atom or a weak Ga-benzene complex that has had the degeneracy of the Ga p orbitals lifted by interaction with the benzene matrix. This contrasts with Al in benzene which gives a mononuclear monoligand complex, Al(C{sub 6}H{sub 6}), with quite strong bonding between the metal atom and the ligand.

• OSTI ID: 5260545
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:18; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AROMATICS
BENZENE
COMPLEXES
DATA
ELECTRON SPIN RESONANCE
ELEMENTS
EXPERIMENTAL DATA
GALLIUM
GALLIUM COMPLEXES
HYDROCARBONS
INFORMATION
MAGNETIC RESONANCE
MAGNETISM
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARAMAGNETISM
RESONANCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K