Reactions of laser-ablated U atoms with (CN)2 produce UNC, U(NC)2, and U(NC)4 as the major products, identified from their Ar matrix infrared spectra and precursors partially and fully substituted with (13)C and (15)N. Mixed isotopic multiplets substantiate product stoichiometries. Band positions and quantum chemical calculations verify the isocyanide bonding.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/c4cc09946j | DOI Listing |
J Phys Chem Lett
August 2024
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), Fudan University, Shanghai 200438, China.
The energy required for spin-orbit excitation plays a critical role in understanding translational-to-electronic energy conversion, particularly in chemical reactions involving changes in spin states. This is particularly important for transition metal atoms possessing -orbitals, which result in multiple spin-orbit split energy levels at low energies. The accurate identification and characterization of spin-orbit transitions in such species require advanced experimental techniques and theoretical support.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
October 2024
Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
The pursuit of carbon-neutral energy has intensified the interest in green hydrogen production from direct seawater electrolysis, given the scarcity of freshwater resources. While Ni-based catalysts are known for their robust activity in alkaline water oxidation, their catalytic sites are prone to rapid degradation in the chlorine-rich environments of seawater, leading to limited operation time. Herein, we report a Ni(OH) catalyst interfaced with laser-ablated LiFePO (Ni(OH)/L-LFP), derived from spent Li-ion batteries (LIBs), as an effective and stable electrocatalyst for direct seawater oxidation.
View Article and Find Full Text PDFNat Commun
May 2024
School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, China.
Fixation and functionalisation of N by main-group elements has remained scarce. Herein, we report a fixation and cleavage of the N ≡ N triple bond achieved in a dinitrogen (N) matrix by the reaction of hydrogen and laser-ablated silicon atoms. The four-membered heterocycle HSi(μ-N)SiH, the HSiNN(H) and HNSiNH complexes are characterized by infrared spectroscopy in conjunction with quantum-chemical calculations.
View Article and Find Full Text PDFChemistry
June 2024
Freie Universität Berlin, Institut für Chemie und Biochemie - Anorganische Chemie, Fabeckstrasse 34/36, 14195, Berlin, Germany.
The trifluorosilylarsinidene FSiAs in the triplet ground state has been generated through the reaction of laser-ablated silicon atoms with AsF in cryogenic Ne- and Ar-matrices. The reactions proceed with the initial formation of perfluorinated arsasilene FAsSiF in the singlet ground state by two As-F bonds insertion reaction on annealing. The trifluorosilylarsinidene FSiAs was formed via F-migration reactions of FAsSiF under irradiation at UV light (λ = 275 nm).
View Article and Find Full Text PDFInorg Chem
April 2024
Institut für Chemie und Biochemie-Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34/36, Berlin 14195, Germany.
The perfluorinated silylphosphinidene, FSiP, in the triplet ground state is generated by the reaction of laser-ablated silicon atoms with PF in solid neon and argon matrices. The reactions proceed with the initial formation of a silicon trifluorophosphine complex, FPSi, in the triplet ground state, and a more stable inserted phosphasilene, FPSiF, in the singlet ground state upon deposition. The trifluorosilylphosphinidene was formed through F-migration reactions of FPSiF and FPSi following a two-state mechanism under irradiation with visible light (λ = 470 nm) and full arc light (λ > 220 nm), respectively.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!