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Mahitha M. Chiral gold clusters Au 28 , Au 38 , Au 40 , Au 102 , Au - - PowerPoint PPT Presentation
Mahitha M. Chiral gold clusters Au 28 , Au 38 , Au 40 , Au 102 , Au - - PowerPoint PPT Presentation
Mahitha M. Chiral gold clusters Au 28 , Au 38 , Au 40 , Au 102 , Au 133 and Au 144 Au25- 13 Ag atom doping Au38- 5 Ag atom doping Background Synthesis of Ag x Au 38x (SCH2CH2Ph) 24 . Separation of Ag x Au 38x (SCH2CH2Ph) 24 using
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Au25- 13 Ag atom doping Au38- 5 Ag atom doping
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Background… …
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Synthesis of AgxAu38−x(SCH2CH2Ph)24. Separation of AgxAu38−x(SCH2CH2Ph)24 using HPLC. Characterization Racemization study
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Racemic Au38(SCH2CH2Ph)24 was synthesized by thermal etching of polydispersed Aun(SG)m nanoclusters AgxAu38−x(SCH2CH2Ph)24 was synthesized by metal exchange of AgSCH2CH2Ph and Au38(SCH2CH2Ph)24.
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Synthesis of AgxAu38−x(SCH2CH2Ph)24. Separation of AgxAu38−x(SCH2CH2Ph)24 using HPLC. Characterization Racemization study
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Synthesis of AgxAu38−x(SCH2CH2Ph)24. Separation of AgxAu38−x(SCH2CH2Ph)24 using HPLC. Characterization Racemization study
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Eyring analysis
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Future perspective…..
Intercluster reaction product of Au25PET18 and Ag25DMBT18. Complexity due to both Ligand exchange and metal exchange. Metal exchange can be tried to reduce the complexity.
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References
Qian, H. F .; Eckenhofg, W. T.; Zhu, Y .; Pintauer, T.; Jin, R. C. T
- tal Structure
Determination of Thiolate-Protected Au-38 Nanoparticles. J. Am. Chem. Soc. 2010, 132, 8280−8281. Zeng, C. J.; Li, T.; Das, A.; Rosi, N. L.; Jin, R. Chiral Structure ofThiolate- Preotected 28-Gold-Atom Nanocluster Determined by X-ray Crystallography. J.
- Am. Chem. Soc. 2013, 135, 10011−10013.
Malola, S.; Lehtovaara, L.; Knoppe, S.; Hu, K. J.; Palmer, R. E.; Burgi, T.; Hakkine
- H. Au-40(Sr)(24) Cluster as a Chiral Dimer of 8-Electron Superatoms: Structure
and Optical Properties. J. Am. Chem.
- Soc. 2012, 134, 19560−19563.
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