A5030590469- Nanocluster Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Substance Abuse Treatment and Outcomes
- Homelessness and Social Issues
- Trace Elements in Health
- Graphene research and applications
- Opioid Use Disorder Treatment
- Anodic Oxide Films and Nanostructures
- X-ray Diffraction in Crystallography
- Youth Substance Use and School Attendance
- Alcohol Consumption and Health Effects
- Supramolecular Self-Assembly in Materials
- Drug-Induced Hepatotoxicity and Protection
- Australian Indigenous Culture and History
- Nanoporous metals and alloys
- Pacific and Southeast Asian Studies
- Canadian Policy and Governance
- Economic, financial, and policy analysis
- Poisoning and overdose treatments
- Inorganic Fluorides and Related Compounds
- Law, Rights, and Freedoms
- Taxation and Compliance Studies
- Criminal Law and Evidence
- Advanced Chemical Physics Studies
The University of Texas at San Antonio
2018-2021
ConspectusThere exists a special kind of perfection—in symmetry, simplicity, and stability—attainable for structures generated from precisely 60 ligands (all single type) that protect 145 metal-atom sites. The symmetry in question is icosahedral (Ih), generally, chiral (I) particular. A 60-fold equivalence the smallest number to allow this perfection.Known cluster compounds approximate structural ideal include palladium-carbonyls, Ih-Pd145(CO)60; gold-thiolates, I-Au144(SR)60; gold-alkynyls,...
Here we report on the identification and applications of an aqueous 29-atom silver cluster stabilized with 12 lipoate ligands, i.e. Ag29(R-α–LA)12 or (29,12), wherein R-α–LA = R-α-lipoic acid, a natural dithiolate. Its uniformity is checked by HPLC-ESI-MS analytical ultracentrifugation, which confirms its small dimension (∼3 nm hydrodynamic diameter). For first time, this has been detected intact via electrospray ionization mass spectrometry, allowing one to confirm composition, [3-]...
The combination of profound chirality and high symmetry on the nm-scale is unusual would open exciting avenues, both fundamental applied. Here we show how unique electronic structure bonding quasi-2D gold makes this possible. We report a chiral breaking, i.e., spontaneous formation chiral-icosahedral shell (I-Au
Motivated by the recent theoretical discovery [S.-M. Mullins et al., Nat. Commun. 9, 3352 (2018)] of a surprisingly contracted 60-atom hollow shell chiral-icosahedral symmetry (I-Au60) remarkable rigidity and electronegativity, we have explored, via first-principles density functional theory calculations, its physico-chemical interactions with internal external shells, enabling conclusions regarding robustness identifying composite forms in which an identifiable I-Au60 structure may be...