Studies on the magnetic ground state of a spin Möbius strip

Newton, Graham; Hoshino, Norihisa; Matsumoto, Takuto; Shiga, Takuya; Nakano, Motohiro; Nojiri, Hiroyuki; Furukawa, Yuji; Oshio, Hiroki

Abstract

Here we report the synthesis, structure and detailed characterisation of three n-membered oxovanadium rings, Nan[(V=O)nNan(H2O)n(α, β, or γ-CD)2]⋅mH2O (n = 6, 7, or 8), prepared by the reactions of (V=O)SO4⋅xH2O with α, β, or γ-cyclodextrins(CDs) and NaOH in water. Their alternating heterometallic vanadium/sodium cyclic core structures were sandwiched between two CD moieties such that O-Na-O groups separated neighbouring vanadyl ions. Antiferromagnetic interactions between the S = ½ vanadyl ions led to S = 0 ground states for the even-membered rings, but to two quasi-degenerate S = ½ states for the spin-frustrated heptanuclear cluster.

Citation

Newton, G., Hoshino, N., Matsumoto, T., Shiga, T., Nakano, M., Nojiri, H., Furukawa, Y., & Oshio, H. (2016). Studies on the magnetic ground state of a spin Möbius strip. Chemistry - A European Journal, 22(40), 14205-14212. https://doi.org/10.1002/chem.201602439

• Journal Article Type: Article
• Acceptance Date: Jul 6, 2016
• Online Publication Date: Aug 22, 2016
• Publication Date: Sep 26, 2016
• Deposit Date: Jul 22, 2016
• Publicly Available Date: Aug 22, 2016
• Journal: Chemistry - a European Journal
• Print ISSN: 0947-6539
• Electronic ISSN: 1521-3765
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 22
• Issue: 40
• Pages: 14205-14212
• DOI: https://doi.org/10.1002/chem.201602439
• Public URL: https://nottingham-repository.worktribe.com/output/809420
• Publisher URL: http://onlinelibrary.wiley.com/doi/10.1002/chem.201602439/full
• Additional Information: This is the peer reviewed version of the following article: G. N. Newton, N. Hoshino, T. Matsumoto, T. Shiga, M. Nakano, H. Nojiri, W. Wernsdorfer, Y. Furukawa, H. Oshio, Chem. Eur. J. 2016, 22, 14205. which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/chem.201602439/full This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
• Contract Date: Jul 22, 2016