Rotationally resolved vibrational spectra of DyO and DyO in a molecular beam are obtained by IR excitation from the X8 ground state and from high- Rydberg states of DyO using an infrared free electron laser. Vibrational excitation is detected either by resonance enhanced multiphoton ionisation from X8( = 1) or by autoionisation of Rydberg states converging to DyO( = 1). For most heavy molecules, the large spectral width of an infrared free electron laser does not allow for rotational resolution. In DyO and DyO the P, Q, and R transitions can be resolved due to the high angular momentum in their ground states. For DyO a vibrational constant of = 847.5(2) cm and a vibrational anharmonicity of = 2.9(1) cm are deduced. For the DyO cation a transition frequency of Δ = 907(1) cm is found.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d4cp02328e | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Rocksalt-type heavy rare earth monoxides TbO, DyO, and ErO exhibiting metallic electronic states and ferromagnetism.
Dalton Trans
December 2024
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
Solid-phase rare earth monoxides have been recently synthesized thin film epitaxy. However, it has been difficult to synthesize heavy rare earth monoxides owing to their severe chemical instability. In this study, rocksalt-type heavy rare earth monoxides REOs (RE = Tb, Dy, Er) were synthesized for the first time, as single-phase epitaxial thin films.
View Article and Find Full Text PDFSingle-cell spatial transcriptomics of fixed, paraffin-embedded biopsies reveals colitis-associated cell networks.
bioRxiv
November 2024
Division of Gastroenterology, Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
Article Synopsis
- - This study focused on developing a new imaging-based method called single-cell spatial transcriptomics (iSCST) to analyze archived, formalin-fixed, paraffin-embedded (FFPE) tissue samples from inflammatory bowel disease (IBD) patients, which helps to preserve the spatial context of various cell types within the tissue.
- - Researchers benchmarked three iSCST platforms by analyzing 57 FFPE mucosal biopsies from IBD patients and healthy controls, allowing for detailed cell analysis and gene expression profiling through a consistent data processing pipeline.
- - A custom gene panel showed the best performance for detecting and quantifying different cell subsets, revealing significant findings related to inflammation and treatment responses in ulcerative colitis, which could enhance
Cold Molecular Ions via Autoionization below the Dissociation Limit.
Phys Rev Lett
October 2024
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
Several diatomic transition metal oxides, rare-earth metal oxides, and fluorides have the unusual property that their bond dissociation energy is larger than their ionization energy. In these molecules, bound levels above the ionization energy can be populated via strong, resonant transitions from the ground state. The only relevant decay channel of these levels is autoionization; predissociation is energetically not possible and radiative decay is many orders of magnitude slower.
View Article and Find Full Text PDFGas-phase vibrational spectroscopy of the dysprosium monoxide molecule and its cation.
Phys Chem Chem Phys
August 2024
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
Rotationally resolved vibrational spectra of DyO and DyO in a molecular beam are obtained by IR excitation from the X8 ground state and from high- Rydberg states of DyO using an infrared free electron laser. Vibrational excitation is detected either by resonance enhanced multiphoton ionisation from X8( = 1) or by autoionisation of Rydberg states converging to DyO( = 1). For most heavy molecules, the large spectral width of an infrared free electron laser does not allow for rotational resolution.
View Article and Find Full Text PDFAuxiliary Rather Than Dominant. The Role of Direct Dy-S Coordination in Single-Molecule Magnet Unveiled via Study.
J Phys Chem A
July 2024
Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Lab of Theoretical Molecular Magnetism, College of Chemistry and Materials Science, Northwest University, Xi'an 710127 P. R. China.
The role of Dy-S coordination in a single-molecule magnet (SMM) is investigated via an study in a group of mononuclear structures. The SMM performance of this group is well interpreted via a concise criterion consisting of long quantum tunneling of magnetization (QTM) time τ and high effective barrier for magnetic reversal . The best SMMs in the selected group, i.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!