论文部分内容阅读
Three different kinds of rare-earth metal phthalocyanine complexes(Pc_2LuH,Pc_3Gd_2,R_(12) Pc_3Dy_2)were synthesized.Their ultra-thin films were prepared by the Langmuir-Blodgett techni-que.Crystallites were observed in Langmuir film of Pc_3Gd_2 by means of transmission electron micros-copy.The limiting molecular areas of the phthalocyanine derivatives on pure water increased in theorder mono-,di-and triphthalocyanine,implying that these phthalocyanine molecules are stackedwith a face-to-face orientation and edge-on to the water surface.By using scanning tunneling mic-roscopy individual molecules of lutetium diphthalocyanine adsorbed on graphite surfaces were imagedfor the first time.