Raman and optical absorption spectra of disordered hydrated iron fluoridotitanate (HITF) single crystal were studied. Temperature transformations of the Raman spectra indicate independent ordering processes of the [TiF] and [Fe(HO)] complexes below the structural phase transition. The absorption spectrum in the near-infrared and visible ranges includes transitions from the high spin ground state T of Fe ion to the excited E state and a set of excited triplets. Analysis by Tanabe-Sugano method gives crystal field Dq = 490 cm and Racah parameters B = 340 cm and C = 1904 cm. Considerable decrease of B parameter as compared to the free ion value indicates a decrease of interelectron repulsion in the disordered neighborhood of Fe ions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.saa.2021.120244 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Inhibition of HMGA2 binding to AT-rich DNA by its negatively charged C-terminus.
Nucleic Acids Res
January 2025
Biomolecular Sciences Institute, Florida International University, Miami, FL 33199, United States.
The mammalian high mobility group protein AT-hook 2 (HMGA2) is a small DNA-binding protein that specifically targets AT-rich DNA sequences. Structurally, HMGA2 is an intrinsically disordered protein (IDP), comprising three positively charged 'AT-hooks' and a negatively charged C-terminus. HMGA2 can form homodimers through electrostatic interactions between its 'AT-hooks' and C-terminus.
View Article and Find Full Text PDFA Strengths-Based Approach to Increasing Nutrition Knowledge in Student-Athletes: The 'Eat 2 Win' Pilot Program.
Nutrients
January 2025
School of Health and Medical Sciences, University of Southern Queensland, Ipswich 4305, Australia.
: Proper nutrition and hydration are essential for the health, growth, and athletic performance of student-athletes. Adequate energy availability and sufficient intake of macro- and micronutrients support adolescent development, prevent nutrient deficiencies, and reduce the risk of disordered eating. These challenges are particularly relevant to student-athletes, who are vulnerable to nutrition misinformation and often exhibit limited nutrition knowledge.
View Article and Find Full Text PDFIn situ forming gels as subcutaneous delivery systems of curcumin and piperine.
Sci Rep
January 2025
Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121, Ferrara, Italy.
In this study an in situ forming gel for curcumin and piperine delivery is investigated as a long-lasting strategy in the local treatment of inflammatory and degenerative joint disease, such as osteoarthritis and rheumatoid arthritis. Particularly glyceryl monooleate, in association with phosphatidylcholine and ethanol, were employed. Different ratios between excipients were tested, with the aim to obtain a liquid form suitable for subcutaneous injection, gaining a semisolid consistency in contact with biological fluids.
View Article and Find Full Text PDFIn-silico study of molecular adaptations in halophilic Cas9.
Lett Appl Microbiol
January 2025
National Institute of Plant Genome Research, New Delhi 110067, India.
This study explores the structural adaptations of the CRISPR-Cas9 system in halophilic bacteria, focusing on Cas9 protein of halophilic bacterium Salicibibacter cibi. Protein sequences were analysed using different tools such as ExPASy ProtParam for different physicochemical properties, PONDR web server for disordered regions, and InterPro server and WebLogo for domains. Protein structures were generated using the AlphaFold database, and the quality of the modelled structure was checked through PROCHECK.
View Article and Find Full Text PDFSynthesis, crystal structure and properties of μ-tetra-thio-anti-monato-bis-[(cyclam)zinc(II)] perchlorate 0.8-hydrate.
Acta Crystallogr E Crystallogr Commun
October 2024
Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, D-24118 Kiel, Germany.
The reaction of Zn(ClO)·6HO with NaSbS·9HO in a water/aceto-nitrile mixture leads to the formation of the title compound, (μ-tetra-thio-anti-monato-κ :')bis-[(1,4,8,11-tetra-aza-cyclo-tetra-decane-κ )zinc(II)] perchlorate 0.8-hydrate, [Zn(SbS)(CHN)]ClO·0.8HO or [(Zn-cyclam)(SbS)][ClO]·0.
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!