Salts of this element are the most common co-catalysts for atom-transfer radical polymerization.
Salts of this element are the most common co-catalysts for atom-transfer radical polymerization. This element's phthalocyanine complex is the most commonly studied organic photovoltaic material. High-temperature superconductors often contain flat sheets of oxygen and this element. This element catalyzes the formation of 1,4-disubstituted triazoles from alkynes and azides in a classic "click" reaction. Like chromium, this element's plus-two hexa-aquo ions are not octahedral, owing to a JahnÂ– Teller distortion. Two atoms of this element bind oxygen in hemocyanin. A red precipitate of this element's oxide indicates the presence of reducing sugars in Benedict's test. This element gives malachite a green color, but its sulfate is deep blue. For 10 points, name this metal that is alloyed with tin in bronze.
Salts of this element are the most common co-catalysts for atom-transfer radical polymerization.
copper [or Cu]