X-ray Absorption Spectroscopy of Phosphine-Capped Au Clusters
نویسندگان
چکیده
The structural determination of ultrasmall clusters remains a challenge due to difficulties in crystallisation. Often the atomically precise undergo change under influence environment. X-ray absorption spectroscopy (XAS) can be an attractive tool study electronic and geometric properties such deposited onto various supports situ conditions. Herein, [Au6(dppp)4](NO3)2, [Au9(PPh3)8](NO3)3, [Au13(dppe)5Cl2]Cl3, Au101(PPPh3)21Cl5 were studied using XAS. exhibited distinct features compared bulk gold. XANES results show systematic increase edge energy white line intensity, with decrease cluster nuclearity. EXAFS are sensitive nuclearity ligands fitted their known crystal structures. This advances understanding phosphine-ligated metal relevant practical applications catalysis sensing.
منابع مشابه
X-ray Absorption Spectroscopy
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ژورنال
عنوان ژورنال: Inorganics (Basel)
سال: 2023
ISSN: ['2304-6740']
DOI: https://doi.org/10.3390/inorganics11050191