Replacing a monoanionic cyclopentadienyl (Cp) ligand in dysprosium single-molecule magnets (SMMs) with a dianionic cyclobutadienyl (Cb) ligand in the sandwich complexes [(η -Cb'''')Dy(η -C Me Bu)(BH )] (1), [(η -Cb'''')Dy(η -Pn )K(THF)] (2) and [(η -Cb'''')Dy(η -Pn )] (3) leads to larger energy barriers to magnetization reversal (Cb''''=C (SiMe ) , Pn =1,4-di(tri-isopropylsilyl)pentalenyl). Short distances to the Cb'''' ligands and longer distances to the Cp ligands in 1-3 are consistent with the crystal field splitting being dominated by the former. Theoretical analysis shows that the magnetic axes in the ground Kramers doublets of 1-3 are oriented towards the Cb'''' ligands. The theoretical axiality parameter and the relative axiality parameter Z and Z are introduced to facilitate comparisons of the SMM performance of 1-3 with a benchmark SMM. Increases in Z and Z when Cb''' replaces Cp signposts a route to SMMs with properties that could surpass leading systems.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9302998 | PMC |
| http://dx.doi.org/10.1002/anie.202200525 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Continuous flow solvent-free and catalyst-free mechanochemical production of rhodamine B dyes and their derivatives.
Chem Commun (Camb)
January 2025
Chemical Engineering & Process Development, CSIR-National Chemical Laboratory Pune, 411008, India.
In this communication, we have described a simple and efficient, catalyst free and solvent-free protocol for the continuous flow synthesis of rhodamine B dyes developed from 3-diethyl amino phenol and phthalic anhydride. Nearly 95% conversion was achieved within 12 min using a jacketed single screw reactor. This method is further used for the synthesis of six derivatives with 70-84% yield, which can be compared to 85% yield from a 1-hour long batch synthesis involving a catalyst.
View Article and Find Full Text PDFOpening of the cardiac voltage-gated Na+ channel (Nav1.5) is responsible for robust depolarization of the cardiac action potential, while inactivation, which rapidly follows, allows for repolarization. Regulation of both the voltage- and time-dependent kinetics of Nav1.
View Article and Find Full Text PDFMolecular Characterization of Bovine in Equine Sarcoids in Egypt.
Vet Med Int
January 2025
Veterinary Population Medicine Department and Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota 55108, USA.
Bovine papillomaviruses (BPVs) commonly cause sarcoids in equines worldwide. Equine sarcoids (ESs) reduce the working ability of draft animals and produce untoward cosmetic changes in racing and dancing equine. In this study, nine horses and 16 donkeys with sarcoids were presented to Zagazig University Veterinary Clinic, Zagazig, Egypt.
View Article and Find Full Text PDFAn Aggressive Angiomyxoma Presenting as a Vaginal Wall Carbuncle in a 31-Year-Old Female: A Case Report.
Cureus
December 2024
Genetics Unit, Laboratory Department, Al Hada Armed Forces Hospital, Taif, SAU.
An aggressive angiomyxoma (AA) is a rare soft tissue neoplasm of the lower female genital tract. The incidence of vaginal involvement is low, so it is commonly misdiagnosed as a Bartholin cyst, lipoma, and abscess, among others. This is a case of a 31-year-old female patient presenting with anterior vaginal wall swelling measuring 1 x 1 cm, clinically diagnosed as vaginal carbuncle.
View Article and Find Full Text PDFDevelopment and Validation of a Prognostic Molecular Phenotype and Clinical Characterization in Grade III Diffuse Gliomas Treatment with Radio-Chemotherapy.
Ther Clin Risk Manag
January 2025
Department of Oncology, Gaoxin Branch of the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, People's Republic of China.
Background: The relationship between molecular phenotype and prognosis in high-grade gliomas (WHO III and IV, HGG) treated with radiotherapy and chemotherapy is not fully understood and needs further exploration.
Methods: The HGG patients following surgery and treatment with radiotherapy and chemotherapy. Univariate and multivariate Cox analyses were used to assess the independent prognostic factors.
Want 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!