Matrix reactions of molecular oxygen and ozone with aluminium atoms
Frozen matrices of N/sub 2/ or Ar containing small concentrations of Al atoms and O/sub 2/ or O/sub 3/ have been prepared by matrix isolation techniques and studied by infrared absorption spectroscopy. The spectra were analyzed on the basis of isotopic oxygen substitution, variations in the concentrations of reagents, and changes in band intensities after reagent diffusion and reaction in the matrix. These analyses have shown that the principal reaction product in N/sub 2/ matrices with either O/sub 2/ or O/sub 3/ was an asymmetrical and highly bent aluminum dioxygen molecule, AlOO (C/sub s/). Very little of this species was produced in Ar matrices. The stretching modes of AlOO in N/sub 2/ were identified as 1337 cm/sup -1/ for nu/sub 1/(O-O) and 1091 cm/sup -1/ for nu/sub 3/(Al-O). Metal ozonides absorbing in the region of 850 cm/sup -1/ also were produced by both oxygen reagents in both N/sub 2/ and Ar matrices. Several other complex species were identified as additional reaction products. No bands could be identified as belonging to a metal superoxide species, which is the principal product in the matrix reactions of Ga, In, and Tl with O/sub 2/. 24 references, 4 figures, 3 tables.
- Research Organization:
- Case Western Reserve Univ., Cleveland, OH
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5961809
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 87:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM
CHEMICAL REACTIONS
OXYGEN
OXYGEN 18
ISOTOPE EFFECTS
OZONE
ARGON
EXPERIMENTAL DATA
GASES
INFRARED SPECTRA
ISOTOPE ENRICHED MATERIALS
ISOTOPIC EXCHANGE
MATRIX ISOLATION
MOLECULAR STRUCTURE
NITROGEN
VERY LOW TEMPERATURE
VIBRATIONAL STATES
DATA
ELEMENTS
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXCITED STATES
FLUIDS
INFORMATION
ISOTOPES
LIGHT NUCLEI
MATERIALS
METALS
NONMETALS
NUCLEI
NUMERICAL DATA
OXYGEN ISOTOPES
RARE GASES
SPECTRA
STABLE ISOTOPES
400201* - Chemical & Physicochemical Properties
400202 - Isotope Effects
Isotope Exchange
& Isotope Separation