Cryogenic Photoelectron Spectroscopic and Theoretical Study of the Electronic and Geometric Structures of Undercoordinated Osmium Chloride Anions OsCln– (n = 3–5)
Journal Article
·
· Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
- East China Normal Univ. (ECNU), Shanghai (China)
- Donghua University, Shanghai (China)
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- East China Normal Univ. (ECNU), Shanghai (China); Shanxi Univ., Taiyuan (China)
A series of anionic transition metal halides OsCln- (n=3–5) have been investigated using a newly developed, home-constructed, cryogenic anion cluster photoelectron spectroscopy. Here, the target anionic species are generated through collision-induced dissociation in a two-stage ion funnel. The measured vertical detachment energies (VDEs) are 3.48 eV, 4.54 eV, and 4.81 eV for n = 3, 4, and 5, respectively. Density functional theory calculations at the B3LYP-D3(BJ)//aug-cc-pVTZ (-pp) level predict the lowest energy structures of OsCln- (n = 3–5) to be a quintet triangle, quartet square, and quintet square-based pyramid, respectively. The CCSD(T)-calculated VDEs and corresponding adiabatic detachment energies (ADEs) agree well with our experimental measurements. Analysis of the corresponding frontier molecular orbitals (FMOs) and charge density differences suggests that the d-orbitals of the transition metal Os play a primary role in the single-photon detachment processes, and the detached electrons originating from different molecular orbitals are distinguishable.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 2475660
- Report Number(s):
- PNNL-SA--200114
- Journal Information:
- Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory, Journal Name: Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory Journal Issue: 28 Vol. 128; ISSN 1089-5639
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exploring direct photodetachment and photodissociation–photodetachment dynamics of platinum iodide anions (PtIn-, n = 2–5) using cryogenic photoelectron spectroscopy
Photodetachment Dynamics and Structural Flexibility of Undercoordinated Iridium Halides IrCln− (n = 3−5): An Experimental and Theoretical Investigation
Journal Article
·
Mon Dec 02 19:00:00 EST 2024
· Journal of Chemical Physics
·
OSTI ID:2560363
Photodetachment Dynamics and Structural Flexibility of Undercoordinated Iridium Halides IrCln− (n = 3−5): An Experimental and Theoretical Investigation
Journal Article
·
Sun May 25 20:00:00 EDT 2025
· ChemPhysChem
·
OSTI ID:3007289