Topic
Valency
About: Valency is a research topic. Over the lifetime, 1632 publications have been published within this topic receiving 26141 citations.
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3 citations
Dissertation•
01 Dec 2011
3 citations
TL;DR: In this article, changes in the valency and coordination states of iron in FeAlPO-5 and FeAlPPO-11 during reduction-oxidation treatments were followed by extracting isomer shift, quadrupole splitting and relative absorption area data from in situ Mossbauer spectra.
Abstract: Changes in the valency and coordination states of iron in FeAlPO-5 and FeAlPO-11 during reduction-oxidation treatments were followed by extracting isomer shift, quadrupole splitting and relative absorption area data from in situ Mossbauer spectra Facile Fe 3+ → Fe` 2+ reduction was detected, and the Fe 2+ formed was stabilized in a low symmetry coordination state. The bonding strength, characterized by the Debye temperature (Θ D ), was considerably smaller for Fe 2+ than for Fe 3+ (Θ D(Fe2+) ≈ 170 K, Θ D(Fe2+) ≈ 500 K).
3 citations
12 Oct 2005
TL;DR: In this paper, the electronic properties of the trimetal-nitride fullerene Dy3N@C80 and its encapsulated form inside SWCNT, the metallofullerene peapod, using high-energy spectroscopic methods as probes.
Abstract: We report on the electronic properties of the trimetal‐nitride fullerene Dy3N@C80 and its encapsulated form inside SWCNT, the metallofullerene peapod, using high‐energy spectroscopic methods as probes. From a comparison of the Dy 4d‐4f absorption edges and the valence‐band photoemission spectra with atomic multiplet calculations the effective valency of the encapsulated rare‐earth ions is evaluated. We observe that the Dy ions inside fullerene cage are essentially trivalent which is not affected by the peapod formation.
3 citations