A single chain magnet involving hexacyanoosmateстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 17 декабря 2015 г.
Аннотация:Substitution of the organic cation X in the 1D polymer, X<sub>2</sub>[Mn(acacen)Fe(CN)<sub>6</sub>], leads to an essential change in magnetic behavior. Due to the presence of more voluminous Ph<sub>4</sub>P<sup>+</sup> cations, the polyanion has a more geometrically distorted chain skeleton and, as a consequence, enhanced single chain magnet (SCM) characteristics compared to those for Et4N+. The Arrhenius relaxation energy barriers, the exchange interaction constant and the zero-field splitting anisotropy of Mn-III are determined from the analysis of magnetic measurements. The discussion is supported with ligand field calculations for [Fe(CN)<sub>2</sub>]<sup>3-</sup> that unveils the significant anisotropy of Fe magnetic moments.