Self-Assembled One-Dimensional Arrays of Gold−Dendron Nanocomposites
Self-Assembled One-Dimensional Arrays of Gold−Dendron Nanocomposites
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金-树枝状大分子纳米复合材料的自组装一维阵列
DOI：
10.1021/jp021710p
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发表时间：
2002
影响因子：
3.3
通讯作者：
T. Yonezawa
中科院分区：
文献类型：
--
作者：
Shigehiro Nakao;K. Torigoe;K. Kon;T. Yonezawa
通过使用在焦点处用硫醇基团官能化的第（G）1-4代的聚（氧甲基亚苯基）树枝状分子（PPD）作为封端配体制备了金-树枝状分子纳米复合材料。G1和G2的平均粒度分别为1.5和1.4nm，相对标准偏差为12%和18%，并且粒度随着更高代而增加，粒度分布显著加宽。对于G1和G2，在碳膜上可重复地观察到一维阵列的自发形成，G1和G2的线间距分别为2.5和2.3 nm。
Gold-dendron nanocomposites have been prepared by using poly(oxymethylphenylene) dendrons (PPD) of generations (G) 1-4 functionalized with a thiol group at the focal point as capping ligands. The mean particle size was 1.5 and 1.4 nm for G I and G2, respectively, with 12 and 18% of relative standard deviation, and the particle size increased for higher generations with a remarkable broadening of the size distribution. For Gl and G2, spontaneous formation of one-dimensional arrays has been reproducibly observed on carbon film, with 2.5 and 2.3 nm of line spacing for G 1 and G2, respectively.