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Surface decorated metal carbonyl clusters: bridging organometallic molecular clusters and atomically precise ligated nanoclusters.
Dalton Trans
January 2025
Dipartimento di Chimica Industriale "Toso Montanari", Università di Bologna, Via P. Gobetti 85, 40129 Bologna, Italy.
In this Frontier Article, the work carried out within our research group in Bologna in the field of surface decorated metal carbonyl clusters will be outlined and put in a more general context. After a short Introduction, clusters composed of a metal carbonyl core decorated on the surface by metal-ligand fragments will be analyzed. Both metal-ligand fragments behaving as Lewis acids and Lewis bases will be considered.
View Article and Find Full Text PDFMultifunctional Organic Molecule for Defect Passivation of Perovskite for High-Performance Indoor Solar Cells.
Materials (Basel)
January 2025
Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Perovskite solar cells (PSCs) can utilize the residual photons from indoor light and continuously supplement the energy supply for low-power electron devices, thereby showing the great potential for sustainable energy ecosystems. However, the solution-processed perovskites suffer from serious defect stacking within crystal lattices, compromising the low-light efficiency and operational stability. In this study, we designed a multifunctional organometallic salt named sodium sulfanilate (4-ABS), containing both electron-donating amine and sulfonic acid groups to effectively passivate the positively-charged defects, like under-coordinated Pb ions and iodine vacancies.
View Article and Find Full Text PDFCopper-Catalyzed Intermolecular [2 + 2 + 2] Annulation of Diynes with Alkynes: Construction of Carbazoles.
Org Lett
January 2025
Key Laboratory of Chemical Biology of Fujian Province and State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
Transition-metal-catalyzed [2 + 2 + 2] annulation of alkynes is an efficient pathway for the synthesis of aromatic compounds. However, most of the established methods require noble metal catalysts. Herein, we report a copper-catalyzed intermolecular [2 + 2 + 2] annulation of diynes with alkynes through vinyl cation intermediates, enabling the atom-economical preparation of biologically important carbazole skeletons.
View Article and Find Full Text PDFSulfur functionalized diamondoid phosphines enable building nanocomposites interfacing sp-carbon and gold nanolayers.
Nanoscale
January 2025
Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR CNRS 6302, Université de Bourgogne, 9 avenue Alain Savary, 21078 Dijon, France.
Interfacing metal frameworks with carbon-based materials is attractive for the bottom-up construction of nanocomposite functional materials. The stepwise layering of difunctionalized diamantanes and gold metal from physical and chemical vapor deposition for the preparation of nanocomposites inverts the conventional preparation of metal-organic frameworks (MOFs) and self-assemblies, where the metal is introduced first, and this method delivers metal surfaces with modified properties originating from the sp-carbon core. However, appropriate diamondoid candidates for such an approach are rare.
View Article and Find Full Text PDFProbing Magnetism in Self-Assembled Organometallic Complexes Using Kondo Spectroscopy.
ACS Nano
January 2025
Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany.
Article Synopsis
- Control of individual atomic spins is essential for advancements in spintronics, quantum sensing, and quantum information processing, with scanning tunneling microscopy (STM) being a effective tool for manipulation.
- The research presents a new method for self-assembling magnetic organometallic complexes using iron atoms and specific molecules (Cu(dbm) and FePc) on a silver substrate, effectively forming complexes that mimic metallocenes.
- Magnetic properties of these complexes show a notable Kondo effect, which is explained through density functional theory calculations indicating that the interaction between Fe 3d-orbitals and benzene π-orbitals enhances Kondo screening, offering insights for designing hybrid organometallic systems.
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