2005年9月
Structural phase transition driven by spin-lattice interaction in a quasi-one-dimensional spin system of [1-(4′-iodobenzyl)pyridinium][Ni(mnt) 2]
Journal of Physical Chemistry B
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- 巻
- 109
- 号
- 35
- 開始ページ
- 16610
- 終了ページ
- 16615
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1021/jp051995g
Crystal structures and magnetic properties were determined for two novel compounds, [1-(4′-iodobenzyl)-pyridinium][M(mnt)2] (mnt 2- = maleonitriledithiolate; M = Ni (1) or Cu (2)). At room temperature, single crystals of 1 and 2 were isostructural, featuring the formation of segregated columnar structures with regular stacks of cations and anions. For crystal 1, a magnetic transition was observed at ∼120 K; furthermore, its magnetic behavior was consistent with that of a regular Heisenberg antiferromagnetic (AFM) chain of S = 1/2 in the high-temperature phase (HT phase) and that of a spin-gap system in the low-temperature phase (LT phase). Such a phenomenon is similar to the spin-Peierls transition. However, the crystal structure of 1 in the LT phase at 100 K revealed that its structural transition is associated with the magnetic transition. Because crystal 2 (S = 0) did not exhibit a structural transition, the structural transition of 1 is driven by spin-lattice interaction. © 2005 American Chemical Society.
- リンク情報
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- DOI
- https://doi.org/10.1021/jp051995g
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000231687400009&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=25444503757&origin=inward
- ID情報
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- DOI : 10.1021/jp051995g
- ISSN : 1520-6106
- SCOPUS ID : 25444503757
- Web of Science ID : WOS:000231687400009