DETAILED DESCRIPTION We claim: 1. An organometallic liquid polymeric material comprising: an organic polymer which is a viscous liquid at a temperature in the range of -40. degree. C. to +40. degree. C. and is selected from the group consisting of polymers having carbon-carbon polymeric chains and silicone polymers, said polymer having functional groups therein and selected from aryl groups, naphthyl groups, phenanthryl groups, pyridinyl groups, olefinic unsaturation, cyclopentadienyl groups, cyclohexadienyl groups, cyclooctadienyl groups, dicyclopentadienyl groups and norbornadienyl groups; and at least one metal chemically bonded to said polymer, in substantial quantities, in the form of small stable clusters of 2-13 metal atoms, said at least one metal being selected from the group consisting of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, chromium, rhodium, palladium, platinum, tungsten, aluminum and silver; said material and said small-cluster metal form therein being stable under inert atmosphere at a temperature within the range -40. degree. C. to +40. degree. C. 2. An organometallic liquid polymeric material comprising: a liquid viscous polymer selected from the group consisting of poly(methylphenylsiloxanes), poly(phenylethers), polymers of styrene, polymers of chloro-substituted styrene, polymers of methyl-substituted styrene, polymers of vinyl naphthalene and polymers of conjugated or cyclic diolefins containing residual unsaturation, said polymer being a liquid viscous polymer at some temperatures within the range -40. degree. C. to +40. degree. C. ; and at least one metal selected from the group consisting of titanium, vanadium niobium, tantalum, monybdenum, chromium, rhodium, palladium, platinum and tungsten; said metal being chemically bonded to said polymer, in substantial qunatities, in the form of metal atom clusters of from 2-13 metal atoms per cluster; the weight ratio of metal to polymer in said material being at least about 0. 026 parts by weight of metal per part by weight of polymer; said material and said small-cluster metal form therein being stable at some temperatures within the range -40
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