Monolayer assemblies of long-chain complex containing rare-earth metal : N,N-distearyldimethylammonium tetra (4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono) europate(III)

Monolayers of a newly synthesized long-chain complex of europium(III) and its mixtures with octadecane or arachidic acid were investigated. Using the conventional LB and horizontal methods, the mixed monolayers could be deposited on solid supports. For the complex in monolayer assemblies, the emission probabilities from higher excited state 5D1 than 5D0 were remarkably enhanced in comparison with those in the solution or crystalline. (author)