The self-assembled structures of 4, 4′-dionoyl-2, 2′-dipyridyl and its co-adsorption with stearic acid on highly oriented pyrolytic graphite (HOPG) have been studied by the scanning tunneling microscopy (STM). As a ...The self-assembled structures of 4, 4′-dionoyl-2, 2′-dipyridyl and its co-adsorption with stearic acid on highly oriented pyrolytic graphite (HOPG) have been studied by the scanning tunneling microscopy (STM). As a result, 4,4′- dionoyl-2,2′-dipyridyl forms a planar trans conformation in two cases, and through the co-adsorption with stearic acid, 4, 4′-dionoyl-2,2′-dipyridyl and stearic acid form a well-or- dered nanostructure.展开更多
An important precursor 4,5-didodecylthiolph- thalonitrile (DCP) for synthesis of phthalocyanines (Pcs) and subphthalocyanines (SubPcs) was synthesized and the as-sembling structure of this molecule on the basal plane ...An important precursor 4,5-didodecylthiolph- thalonitrile (DCP) for synthesis of phthalocyanines (Pcs) and subphthalocyanines (SubPcs) was synthesized and the as-sembling structure of this molecule on the basal plane of highly oriented pyrolytic graphite (HOPG) surface was characterized using the scanning tunneling microscopy (STM) in ambient conditions. In high-resolution images of the molecules, we found that the arrangement of the cyano groups forms a head-to-head configuration to keep the stability of the entire system. The mismatch of the DCP molecules with the substrate lattice has also been observed in the experiment.展开更多
基金supported by the National Natural Sdence Foundation of China(Grant No.G20103008)the Foundalion of the Chinese Academy of Sciences.
文摘The self-assembled structures of 4, 4′-dionoyl-2, 2′-dipyridyl and its co-adsorption with stearic acid on highly oriented pyrolytic graphite (HOPG) have been studied by the scanning tunneling microscopy (STM). As a result, 4,4′- dionoyl-2,2′-dipyridyl forms a planar trans conformation in two cases, and through the co-adsorption with stearic acid, 4, 4′-dionoyl-2,2′-dipyridyl and stearic acid form a well-or- dered nanostructure.
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.20073053 and 20103008)the Foundation of the Chinese Academy of Sciences.
文摘An important precursor 4,5-didodecylthiolph- thalonitrile (DCP) for synthesis of phthalocyanines (Pcs) and subphthalocyanines (SubPcs) was synthesized and the as-sembling structure of this molecule on the basal plane of highly oriented pyrolytic graphite (HOPG) surface was characterized using the scanning tunneling microscopy (STM) in ambient conditions. In high-resolution images of the molecules, we found that the arrangement of the cyano groups forms a head-to-head configuration to keep the stability of the entire system. The mismatch of the DCP molecules with the substrate lattice has also been observed in the experiment.
