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Full-Text Articles in Physical Sciences and Mathematics
Metals In Metal Salts: A Copper Mirror Demonstration, Robert D. Pike
Metals In Metal Salts: A Copper Mirror Demonstration, Robert D. Pike
Arts & Sciences Articles
A simple lecture demonstration is described to show the latent presence of metal atoms in a metal salt. Copper(II) formate tetrahydrate is heated in a round-bottom flask forming a high-quality copper mirror.
Reversible Luminescent Reaction Of Amines With Copper(I) Cyanide, Amanda N. Ley, Lars E. Dunaway, Timothy P. Brewster, Matthew D. Dembo, Et Al., Robert D. Pike
Reversible Luminescent Reaction Of Amines With Copper(I) Cyanide, Amanda N. Ley, Lars E. Dunaway, Timothy P. Brewster, Matthew D. Dembo, Et Al., Robert D. Pike
Arts & Sciences Articles
Copper(I) cyanide exposed to various liquid or vapor-phase amines (L) at ambient temperature produces a variety of visible photoluminescence colors via reversible formation of amine adducts. The adducts show phase matches to authentic (CuCN)Ln, n = 0.75–2.0, produced by heating CuCN with liquid amine.
Does Prodan Possess An O-Tict Excited State? Synthesis And Properties Of Two Constrained Derivatives, Christopher J. Abelt
Does Prodan Possess An O-Tict Excited State? Synthesis And Properties Of Two Constrained Derivatives, Christopher J. Abelt
Arts & Sciences Articles
The synthesis and photophysical properties of 7-(dimethylamino)-3,4-dihydrophenanthren-1(2H)-one (7) and 3-(dimethylamino)-8,9,10,11-tetrahydro-7H-cyclohepta[a]naphthalen-7-one (8) are reported. These compounds possess a cycloalkanone substructure that controls the extent of twisting of the carbonyl group. The six-membered ring in 7 forces the carbonyl group to be coplanar with the naphthalene ring, whereas the seven-membered ring in 8 induces a significant twist. Both have the substructure of PRODAN (6-propionyl-2-(dimethylamino)naphthalene, 1). Comparing the photophysical behavior of these compounds with that of PRODAN and 2,2-dimethyl-1-(4-methyl-1,2,3,4-tetrahydrobenzo[f]quinolin-8-yl)propan-1-one (3) indicates that PRODAN likely emits from a PICT excited state rather than from an O-TICT excited state.