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Basic [Au-25(SCH2CH2Py)(18)](-).Na+ Clusters: Synthesis, Layered Crystallographic Arrangement, and Unique Surface Protonation
| Title: | Basic [Au-25(SCH2CH2Py)(18)](-).Na+ Clusters: Synthesis, Layered Crystallographic Arrangement, and Unique Surface Protonation |
| Authors: | Huang, Zhong Browse this author | | Ishida, Yohei Browse this author | | Yonezawa, Tetsu Browse this author →KAKEN DB |
| Keywords: | basic structures | | clusters | | gold | | protonation | | pyridyl |
| Issue Date: | 16-Sep-2020 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | Angewandte chemie-international edition |
| Volume: | 58 |
| Issue: | 38 |
| Start Page: | 13411 |
| End Page: | 13415 |
| Publisher DOI: | 10.1002/anie.201908905 |
| Abstract: | We report the first synthesis of high-purity and high-yield Au25 clusters protected by the basic pyridyl ethanethiol (HSCH2CH2Py, 4-PyET and 2-PyET). Single-crystal X-ray diffraction of the [Au25(4-PyET)18]−·Na+ clusters has revealed a structure similar to that known for the phenyl ethanethiolate analog, but with pyridyl-N coordination to Na+, a more relaxed ligand shell, and a profoundly layered arrangement in the solid state. Because of the pendant Py moiety, the [Au25(4-PyET)18]− clusters are endowed with a unique (de)protonation equilibria, which has been characterized in detail by UV-vis absorption and 1H-NMR spectroscopy. [Au25(4-PyET)18]− clusters showed an unexpectedly H+-dependent solubility that is tunable in aqueous and organic solvents. The successful synthesis of the basic Py-terminated thiolate-protected Au25 clusters paves the way to realize a new family of metalloid clusters possessing basic properties. |
| Rights: | This is the peer reviewed version of the following article: Z. Huang, Y. Ishida, T. Yonezawa, Angew. Chem. Int. Ed. 2019, 58, 13411. , which has been published in final form at Z. Huang, Y. Ishida, T. Yonezawa, Angew. Chem. Int. Ed. 2019, 58, 13411. . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/79273 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 石田 洋平
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