Bootharaju, Megalamane S.; Lee, Sanghwa; Deng, Guocheng; Malola, Sami; Baek, Woonhyuk; Haekkinen, Hannu; Zheng, Nanfeng; Hyeon, Taeghwan published their research in Angewandte Chemie, International Edition in 2021. The article was titled 《Ag44(EBT)26(TPP)4 Nanoclusters With Tailored Molecular and Electronic Structure》.Category: copper-catalyst The article contains the following contents:
Although atomically precise metalloid nanoclusters (NCs) of identical size with distinctly different mol. structures are highly desirable to understand the structural effects on the optical and photophys. properties, their synthesis remains highly challenging. Herein, we employed phosphine and thiol capping ligands featuring appropriate steric effects and synthesized a charge-neutral Ag NC with the formula Ag44(EBT)26(TPP)4 (EBT: 2-ethylbenzenethiolate; TPP: triphenylphosphine). The single-crystal X-ray structure reveals that this NC has a hollow metal core of Ag12@Ag20 and a metal-ligand shell of Ag12(EBT)26(TPP)4. The presence of mixed ligands and long V-shaped metal-ligand motifs on this NC has resulted in an enhancement of the NIR-II photoluminescence quantum yield by >25-fold compared to an all-thiolate-stabilized anionic [Ag44(SR)30]4- NC (SR: thiolate). Time-dependent d.-functional calculations show that our Ag44 NC is an 18-electron superatom with a modulated electronic structure as compared to the [Ag44(SR)30]4- anion, significantly influencing its optical properties. After reading the article, we found that the author used Bis(acetylacetone)copper(cas: 13395-16-9Category: copper-catalyst)
Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Category: copper-catalyst
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”