Ag atom agglomeration in monomeric and oligomeric olefinic matrices. Part 1
Attention is directed to the interaction of silver atoms (Ag) and low nuclearity silver clusters (Ag/sub n/) with mono- and oligoolefinic matrices. The study serves as a prelude to that involving the corresponding liquid-phase reactions including those with polyolefins (part 2). In this paper, model studies of the reactivity of Ag atoms toward ethylene, propylene, and 1-butene revealed an order of thermal stability for the products (assayed by observance of the intense characteristic charge-transfer band around 590 nm) of silver(ethylene)/sub n/ < silver(propylene)/sub n/ < silver(1-butene)/sub n/. The above order of thermal stability did not carry over to higher molecular weight olefins. Squalene, a C/sub 30/H/sub 50/ triterpene, was selected as a low molecular weight analogue of polyisoprene for use as a hybrid matrix. Although silver atoms, dimers, and higher nuclearity species could be isolated in this matrix, there was no evidence of a product showing a visible charge-transfer band. EPR spectroscopy of this same system showed AG atoms to be distributed between alkene (pseudocomplex) and alkane sites.
- Research Organization:
- Univ. of Toronto, Ontario
- OSTI ID:
- 5471249
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 90:13
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
ADAMANTANE
CHEMICAL REACTIONS
CYCLOALKANES
METHANE
SILVER
SQUALENE
TOLUENE
ABSORPTION SPECTROSCOPY
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
GYROMAGNETIC RATIO
LOW TEMPERATURE
SOLIDS
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
ALKANES
ALKYLATED AROMATICS
AROMATICS
DATA
ELEMENTS
HYDROCARBONS
INFORMATION
MAGNETIC RESONANCE
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYENES
RESONANCE
SPECTRA
SPECTROSCOPY
TERPENES
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
510200 - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)