Tris (thenoyltrifluoroacetonato) mono(9-octadecylamino-4,5-diazafluorene) europium (III) was synthesized. Stable floating monolayer on pure water subphase (18 degrees C, pH 5.6) was obtained with a collapse pressure o...Tris (thenoyltrifluoroacetonato) mono(9-octadecylamino-4,5-diazafluorene) europium (III) was synthesized. Stable floating monolayer on pure water subphase (18 degrees C, pH 5.6) was obtained with a collapse pressure of 40 mN/m and a zero-pressure area of 0.495 nm(2) molecule(-1). The monolayers can be transferred onto hydrophilically treated substrates of quartz, calcium fluoride at a surface pressure of 25 mN/m with a transfer ratio of ca. unity. The films were characterized by UV, IR and fluorescent spectroscopy.展开更多
The morphologies of monolayers containing Eu(TTA)3Phen (TTA=thenoyltrifluoroace-tone, Phen = 1, 10-phenanthroline) were studied at the air/liquid interface on different subphases by fluorescence microscopy (FM). The c...The morphologies of monolayers containing Eu(TTA)3Phen (TTA=thenoyltrifluoroace-tone, Phen = 1, 10-phenanthroline) were studied at the air/liquid interface on different subphases by fluorescence microscopy (FM). The composite subphase was the basic premise for the stable existence of the rare earth compound at air/liquid interface. The process that rare earth compound phase changes from liquid expanded state to liquid condensed state corresponded to a plateau in the π-A isotherm. In the pure Eu(TTA)3Phen monolayer, rod domains of Eu(TTA)3Phen formed and packed with no order. In the mixed monolayers with stearic acid (SA), phase transition of SA occurred first and formed domains with an electric gradient field, which induced the rare earth compound to form luminescent ring domains. Influence of intermolecular interaction on the self-organized microstructure was revealed.展开更多
文摘Tris (thenoyltrifluoroacetonato) mono(9-octadecylamino-4,5-diazafluorene) europium (III) was synthesized. Stable floating monolayer on pure water subphase (18 degrees C, pH 5.6) was obtained with a collapse pressure of 40 mN/m and a zero-pressure area of 0.495 nm(2) molecule(-1). The monolayers can be transferred onto hydrophilically treated substrates of quartz, calcium fluoride at a surface pressure of 25 mN/m with a transfer ratio of ca. unity. The films were characterized by UV, IR and fluorescent spectroscopy.
基金the Award Foundation for Excellent Young Scientists in Shandong Province and the Climbing Program.
文摘The morphologies of monolayers containing Eu(TTA)3Phen (TTA=thenoyltrifluoroace-tone, Phen = 1, 10-phenanthroline) were studied at the air/liquid interface on different subphases by fluorescence microscopy (FM). The composite subphase was the basic premise for the stable existence of the rare earth compound at air/liquid interface. The process that rare earth compound phase changes from liquid expanded state to liquid condensed state corresponded to a plateau in the π-A isotherm. In the pure Eu(TTA)3Phen monolayer, rod domains of Eu(TTA)3Phen formed and packed with no order. In the mixed monolayers with stearic acid (SA), phase transition of SA occurred first and formed domains with an electric gradient field, which induced the rare earth compound to form luminescent ring domains. Influence of intermolecular interaction on the self-organized microstructure was revealed.
