Results 1 to 10 of about 288,417 (120)

6,6′-Di-(2″-thiophenol)-2,2′-bipyridine

open access: yesMolbank, 2022
This short note describes the synthesis of compound 6,6′-di-(2″-thiophenol)-2,2′-bipyridine from its methyl phenyl sulfane precursor via deprotection of the methyl groups.
Yan Huang, Lianpeng Tong
doaj   +1 more source

Room-temperature-superconducting T c driven by electron correlation

open access: yesScientific Reports, 2021
Room-temperature-superconducting T c measured by high pressure in hydrides can be theoretically explained by a Brinkman–Rice (BR)–Bardeen–Cooper–Schrieffer (BCS) T c combining both the generalized BCS T c and the diverging effective mass, m*/m = 1/(1 ...
Hyun-Tak Kim
doaj   +1 more source

Insulator-to-metal transition in ultrathin rutile VO2/TiO2(001)

open access: yesnpj Quantum Materials, 2022
An insulator-to-metal transition (IMT) is an emergent characteristic of quantum materials. When the IMT occurs in materials with interacting electronic and lattice degrees of freedom, it is often difficult to determine if the energy gap in the insulating
D. J. Lahneman   +6 more
doaj   +1 more source

Red Light Emitting Transition Metal Ion Doped Calcium Antimony Oxide for Plant Growth Lighting Applications

open access: yesAgriculture, 2022
In this work, we synthesized Mn4+-doped CaSb2O6 phosphors using the conventional solid-state reaction method for plant growth lighting applications. The morphological, structural, and optical properties were analyzed based on the results obtained from ...
Lankamsetty Krishna Bharat   +4 more
doaj   +1 more source

Investigating the Conformations of a Family of [M2L3]4+ Helicates Using Single Crystal X-ray Diffraction

open access: yesMolecules, 2023
We present five new dinuclear triple helicate compounds of types [Mn2L3](ClO4)4, [Co2L3](BF4)4, [Ni2L3](BF4)4, [Cu2L3](BF4)4, and [Zn2L3](BF4)4, where L is a previously reported semi-rigid ligand incorporating two α-diimine primary donor groups and two ...
Matthew J. Wallis   +3 more
doaj   +1 more source

Metal Polysulfides as High Capacity Electrode Active Materials — Toward Superior Secondary Batteries Based on Sulfur Chemistry

open access: yesElectrochemistry, 2023
Lithium/transition-metal polysulfide batteries are a promissing candidate for next-generation batteries with high energy densities. Transition metal polysulfides and lithium- or sodium-containing transition metal sulfides exhibit large reversible ...
Atsushi SAKUDA
doaj   +1 more source

Metal-Insulator Transition from Graphene to Graphane

open access: yesNanomaterials and Nanotechnology, 2013
Graphane is obtained by perfectly hydrogenating graphene. There exists an intermediate material, partially hydrogenated graphene (which we call hydrographene), interpolating from pure graphene to pure graphane.
Motohiko Ezawa
doaj   +1 more source

First-Principles Electronic-Structure Study of Graphene Decorated with 4d-Transition Atoms

open access: yesCrystals, 2020
Adsorption configurations, electronic structures and net spins of graphene adsorbing 4d transition atoms are calculated by first-principles calculations to explore the magnetic modification of decorating metal atoms on graphene. Y, Zr and Nb atoms can be
Ran Hu, Wei-Chao Zhang, Wei-Feng Sun
doaj   +1 more source

Epitaxial growth of higher transition-temperature VO2 films on AlN/Si

open access: yesAPL Materials, 2016
We report the epitaxial growth and the mechanism of a higher temperature insulator-to-metal-transition (IMT) of vanadium dioxide (VO2) thin films synthesized on aluminum nitride (AlN)/Si (111) substrates by a pulsed-laser-deposition method; the IMT ...
Tetiana Slusar   +4 more
doaj   +1 more source

Iron in intracellular infection: to provide or to deprive?

open access: yesFrontiers in Cellular and Infection Microbiology, 2013
Due to their chemical versatility, transition metals were incorporated as cofactors for several basic metabolic pathways in living organisms. This same characteristic makes them potentially harmful, since they can be engaged in deleterious reactions like
Sandro eSilva-Gomes   +3 more
doaj   +1 more source

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