Abstract
We report the isolation and structural characterization of dodecaneselenolate-protected Au38 clusters (Au38(SeC12H25)24). These clusters were synthesized via the reaction of phenylethanethiolate-protected Au38 clusters (Au38(SC2H4Ph)24) with didodecyldiselenide ((C12H25Se)2). Characterization of the product by mass spectrometry and thermogravimetric analysis confirmed that highly pure Au38(SeC12H25)24 had been obtained. The electronic and geometrical structures, bonding characteristics, and stability of the Au38(SeC12H25)24 clusters were assessed using extended X-ray fine structure and X-ray absorption near edge structure measurements, optical absorption spectroscopy, electrochemical measurements, and stability testing.
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