Metal vapor-liquid polymer chemistry close to room temperature: a marriage of convenience
1980; Elsevier BV; Volume: 59; Linguagem: Inglês
10.1016/0022-2860(80)85065-4
ISSN1872-8014
AutoresGeoffrey A. Ozin, Colin G. Francis,
Tópico(s)Phase Equilibria and Thermodynamics
ResumoAbstract The principal objective of this paper is to briefly describe a new programme of research focussed on the creation and characterization of polymer-stabilized (anchored or solvated), precisely defined metal atom and few-atom cluster compositions of natter (of either a uni-, bi- or trimetallic type) by way of a novel marriage between metal vapor-liquid polymer synthetic techniques (around room temperature) at both a macropreparative and matrix spectroscopic level of opera- tion. The microscopic details of metal atom-liquid polymer diffusion/aggregation/ complexation phenomena are examined as a function of a wide range of experimental variables such as polymer viscosity, reaction temperature, polymer functionalization and loading, metal loading and deposition rates. Product thermal and photochemical stability and chemical reactivity are evaluated by spectroscopic and classical work-up procedures. Electronic and geometrical structure detail around the activemetal sites on the polymer are modelled experimentally by way of closely related, unsupported, matrix-stabilized analogs and examined theoretically through the eye of SCF-Xα-SW molecular orbital computational methods. At all times, a catalysis theme is at the forefront of our considerations governing research directions.
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