57Fe Mössbauer spectroscopy and high-pressure structural analysis for the mechanism of pressure-induced unique magnetic behaviour in (cation)[FeIIFeIII(dto)3] (cation = Ph4P and nPrPh3P; dto = 1,2-dithiooxalato)

Ryosuke Taniai, Tsubasa Endo, Takuya Kanetomo, Atsushi Okazawa, Hirokazu Kadobayashi, Saori I. Kawaguchi, Masaya Enomoto

研究成果: Article査読

抄録

A mixed-valence iron(ii,iii) coordination polymer, (Ph4P)[FeIIFeIII(dto)3] (2; Ph4P = tetraphenylphosphonium, dto = 1,2-dithiooxalato), exhibits a thermal hysteresis loop and a low temperature shift of the ferromagnetic phase transition temperature, with increasing pressure. The latter magnetic behaviour can also be observed in a novel compound (nPrPh3P)[FeIIFeIII(dto)3] (3; nPrPh3P = n-propyltriphenylphosphonium). To understand the structural information under pressure, we performed high-pressure powder X-ray diffraction, and the result suggests that there was no structural phase transition for either compound. Considering the 57Fe Mössbauer spectroscopy studies, both 2 and 3 may have a high transition entropy, and this finding is caused by pressure-induced unique magnetic behaviours.

本文言語English
ページ(範囲)8368-8375
ページ数8
ジャーナルDalton Transactions
52
24
DOI
出版ステータスPublished - 19 5月 2023

フィンガープリント

57Fe Mössbauer spectroscopy and high-pressure structural analysis for the mechanism of pressure-induced unique magnetic behaviour in (cation)[FeIIFeIII(dto)3] (cation = Ph4P and nPrPh3P; dto = 1,2-dithiooxalato)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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