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首页> 外文期刊>Chinese science bulletin >Self-assembly of N-3-γ-pyridyl Aza[60]fulleroid on Au(111)
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Self-assembly of N-3-γ-pyridyl Aza[60]fulleroid on Au(111)

机译：N-3-γ-吡啶基氮杂[60]富勒烯在Au（111）上的自组装

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摘要

Self-assembled monolayers of novel C_(60) derivative, N-3-γ-pyridyl Aza[60]fulleroid (C_(60)Py), on Au(111) were studied by a scanning tunneling microscope under ultrahigh vacuum (UHV). C_(60)Py molecules were assembled on Au (111) via pyridyl nitrogen-Au interaction. The sole assembly of C_(60)Py molecules on Au (111) only exhibited randoml aggregation of C_(60)Py even the films were annealed at 50 and 105℃. By co-assembling with benzyl mercaptan (BM), the C_(60)Py-BM films showed highly dense aggregation, but C_(60)Py assemblies still had disordered structure. After the co-assembled C_(60)Py-BM films were annealed at 50℃, BM molecules were partially desorbed, but the assembly of C_(60)Py remained without obvious change. After the co-assembled C_(60)Py-BM films were further annealed at 105℃, the C_(60)Py monolayers with ordered structure were obtained, while the BM molecules were nearly thoroughly desorbed from the surface. Here, the BM molecules play a key role as a surfactant in the formation of the ordered C_(60)Py monolayer.
机译：在超高真空（UHV）下用扫描隧道显微镜研究了新型C_（60）衍生物N-3-γ-吡啶基氮杂[60]富勒烯（C_（60）Py）在Au（111）上的自组装单分子层。 。 C_（60）Py分子通过吡啶基氮-Au相互作用组装在Au（111）上。 C_（60）Py分子在Au（111）上的唯一组装仅表现出C_（60）Py的无规聚集，即使薄膜在50和105℃退火。通过与苄硫醇（BM）共组装，C_（60）Py-BM薄膜显示出高密度的聚集，但是C_（60）Py组装仍然具有无序的结构。共组装的C_（60）Py-BM薄膜在50℃退火后，BM分子部分解吸，但C_（60）Py的组装保持不变。将共组装的C_（60）Py-BM薄膜在105℃下进一步退火后，得到具有规则结构的C_（60）Py单层，而BM分子则几乎从表面完全解吸。在此，BM分子在有序C_（60）Py单层的形成中起表面活性剂的作用。

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