With only a few atoms of seaborgium (Sg, element 106), in the form of volatile SgO(2)Cl(2), it was possible to determine the sublimation enthalpy of this compound using gas chromatography. Furthermore, it was demonstrated that in Group 6 Sg is chemically more similar to W than to Mo.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/(sici)1521-3773(19990802)38:15<2212::aid-anie2212>3.0.co;2-6 | DOI Listing |
Beilstein J Nanotechnol
December 2024
Centro de Investigaciones en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP). Col. San Manuel, Cd. Universitaria, Av. San Claudio y 14 sur, Edif. IC5 y IC6. Puebla, Pue., 72507 México.
In this study, a simulation of the elementary chemical reactions during SiO film growth in a hot filament chemical vapor deposition (HFCVD) reactor was carried out using a 2D model. For the 2D simulation, the continuity, momentum, heat, and diffusion equations were solved numerically by the software COMSOL Multiphysics based on the finite element method. The model allowed for the simulation of the key parameters of the HFCVD reactor.
View Article and Find Full Text PDFJ Phys Chem B
December 2024
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Analogous to the aqueous solution where the pH of the solvent affects its multiple behaviors, the optical acidity and basicity of molten salts also greatly influence their thermophysical and thermochemical properties. In the study, we develop ion probes to quantitatively determine the acidity-basicity scale of molten NaCl-AlCl ( = 1.5-2.
View Article and Find Full Text PDFHeliyon
December 2024
Department of Civil, Construction, and Environmental Engineering, North Dakota State University (NDSU), Fargo, ND, 58108, USA.
Inorg Chem
December 2024
Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.
The synthesis, characterization, and reactivity of a NiOH core bearing a tridentate redox-active ligand capable of reaching three molecular oxidation states is presented in this paper. The reduced complex [LNiOH] was characterized by single-crystal X-ray diffraction analysis, depicting a square-planar NiOH core stabilized by intramolecular H-bonding interactions. Cyclic voltammetry measurements indicated that [LNiOH] can be reversibly oxidized to [LNiOH] and [LNiOH] at very negative reduction potentials (-1.
View Article and Find Full Text PDFGeobiology
December 2024
Géosciences Montpellier, CNRS, Université de Montpellier, Montpellier, France.
Banded iron formations (BIFs) are chemical sedimentary rocks commonly utilized for exploring the chemistry and redox state of the Precambrian ocean. Despite their significance, many aspects regarding the crystallization pathways of iron oxides in BIFs remain loosely constrained. In this study, we combine magnetic properties characterization with high-resolution optical and electron imaging of finely laminated BIFs from the 2.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!