Topic
Valence (chemistry)
About: Valence (chemistry) is a research topic. Over the lifetime, 24937 publications have been published within this topic receiving 645252 citations. The topic is also known as: valency.
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TL;DR: In this article, X-ray photoelectron spectroscopy was used to study the evolution of LixCoO2+y thin-films at different stages of their cycle in experimental microbatteries.
224 citations
TL;DR: In this paper, the first-order ns energy-level shift of the alkalis is calculated in standard form and the shift is found to be ∼ + 0.3 eV.
222 citations
221 citations
Journal Article•
TL;DR: In this article, the authors present the results of studies on the physical properties of complexes that undergo valence tautomerism, with a view of the scope of VT for complexes containing a variety of quinone ligands and with different metal ions.
Abstract: Valence d-orbital energies of the first row transition metals are close to the frontier π-orbital energies of o-benzoquinones. Complexes prepared with quinone ligands most commonly have the quinone coordinated with the metal in the form of a semiquinonate (SQ) radical-anion or as a catecholate (Cat) dianion. In a few unique complexes it has been possible to observe intramolecular electron transfer between localized metal and quinone electronic levels. Electron transfer is accompanied by changes in magnetism and spectral properties that have made it possible to observe metal-ligand electron transfer under equilibrium conditions in solution and in the solid state. This effect has been considered as an example of valence tautomerism (VT). In this review we present the results of studies on the physical properties of complexes that undergo VT, with a view of the scope of VT for complexes containing a variety of quinone ligands and with different metal ions.
221 citations
TL;DR: In this article, a coordination polymer of mixed-valence copper(I,II) with 4,4′-bipyridine and in situ oxidized isophthalate, [Cu2(ipO)(4,4''-bpy)] (ipOH = 2-hydroxyisophthalates), was hydrothermally synthesized and crystallographically characterized to be a laminated structure via weak copper(II)oxygen interactions.
220 citations