کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5499254 | 1533487 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
XAFS study on thiol etching of diphosphine-stabilized gold nanoclusters
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Thiol-etching triphenylphosphine (PPh3)-protected Au nanoclusters has been widely used to synthesize thiolated Au nanoclusters, while few studies have been reported on the thiol-etching reaction starting from diphosphine-protected Au clusters. Here the thiol-etching reaction in chloroform (CHCl3) for 1,5-Bis(diphenylphosphino) pentane (L5) protected Au11 nanoclusters is presented, and synchrotron radiation X-ray absorption fine structure, UV-vis absorption and mass spectra are combined to identify the reaction products. It is revealed that a gold(I)-thiolate complex Au2L5(RS) is produced, contrary to the case of thiol-etching PPh3-protected Au clusters where formation of thermodynamically stable Au25 or Au11 clusters is achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 137, August 2017, Pages 99-103
Journal: Radiation Physics and Chemistry - Volume 137, August 2017, Pages 99-103
نویسندگان
Jie Bao, Lina Yang, Ting Huang, Zhihu Sun, Tao Yao, Yong Jiang, Shiqiang Wei,