Size Controlled Synthesis of Gold Nanoparticles by Porphyrin with Four Sulfur Atoms

被引：0
|
作者：
Junya Ohyama
Yutaka Hitomi
Yasuhiro Higuchi
Tsunehiro Tanaka
机构：
[1] Kyoto University,Department of Molecular Engineering, Graduate School of Engineering
[2] Doshisha University,Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering
来源：
Topics in Catalysis | 2009年 / 52卷
关键词：
Gold nanoparticles; Porphyrin; Size-controlled synthesis; Thioacetyl group; Multidentate ligand;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Tetradentate thioacetyl porphyrin ligand (1) was synthesized to protect gold nanoparticles. 1-protected gold nanoparticles were characterized by UV-vis spectroscopy and XPS. Analysis by XPS showed that all of four thioacetyl groups of 1 were dissociated and bound to the surface of gold nanoparticles in thiolate form. The size of 1-protected gold nanoparticles (GN:1) was controlled by thioacetyl group/HAuCl4 molar ratio and approached to 2 nm. Compared with a protecting ligand without porphyrin plane (2) or dodecanethiol, 1 can control the size of gold nanoparticles efficiently probably due to the tetradentate ligation effect.
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页码：852 / 859
页数：7
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