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dc.contributor.authorHan, Ceng
dc.contributor.authorBradford, Alasdair Joseph
dc.contributor.authorMcNulty, Jason Allan
dc.contributor.authorZhang, Weiguo
dc.contributor.authorHalasyamani, P. Shiv
dc.contributor.authorSlawin, Alexandra Martha Zoya
dc.contributor.authorMorrison, Finlay D.
dc.contributor.authorLee, Steve
dc.contributor.authorLightfoot, Philip
dc.identifier.citationHan , C , Bradford , A J , McNulty , J A , Zhang , W , Halasyamani , P S , Slawin , A M Z , Morrison , F D , Lee , S & Lightfoot , P 2022 , ' Polarity and ferromagnetism in two-dimensional hybrid copper perovskites with chlorinated aromatic spacers ' , Chemistry of Materials , vol. 34 , no. 5 , pp. 2458-2467 .
dc.identifier.otherPURE: 277807598
dc.identifier.otherPURE UUID: 1d031ffc-75e7-45e0-9928-01993137be03
dc.identifier.otherORCID: /0000-0001-7048-3982/work/108913429
dc.identifier.otherORCID: /0000-0002-2020-3310/work/108914094
dc.identifier.otherORCID: /0000-0002-2813-3142/work/108914126
dc.identifier.otherORCID: /0000-0002-9527-6418/work/108914285
dc.identifier.otherScopus: 85125796358
dc.descriptionWe would like to thank the China Scholarships Council for a studentship to CH. PSH and WZ thank the Welch Foundation (Grant E-1457) and the National Science Foundation (DMR-2002319) for support.en
dc.description.abstractTwo-dimensional (2D) organic−inorganichybrid copper perovskites have drawn tremendous attention as promisingmultifunctional materials. Herein, by incorporating ortho, metaand para-chlorine substitution in the benzylamine structure, we firstlyreport theinfluence of positional isomerism on the crystal structures of chlorobenzylammonium copper (II) chloride perovskites A2CuCl4. 2Dpolar ferromagnets (3-ClbaH)2CuCl4 and (4-ClbaH)2CuCl4(ClbaH+ = chlorobenzylammonium) are successfully obtained. They bothadopt a polar monoclinic space group Cc at room temperature, displayingsignificant differences in crystal structures. In contrast, (2-ClbaH)2CuCl4adopts a centrosymmetric space group P21/c at roomtemperature. This associated structural evolution successfullyenhances the physical properties of the two polar compounds with high thermalstability, discernible second harmonic generation (SHG) signals, ferromagnetism,and narrowoptical band gaps.These findings demonstrate that theintroduction of chlorine atoms into the inter-layer organicspecies is a powerful tool to tune crystalsymmetries and physical properties, and this inspires further exploration of designinghigh-performance multifunctional copper-based materials.
dc.relation.ispartofChemistry of Materialsen
dc.rightsCopyright © 2022 The Authors. Open Access article licensed under Creative Commons Attribution CC-BY 4.0.en
dc.subjectQD Chemistryen
dc.titlePolarity and ferromagnetism in two-dimensional hybrid copper perovskites with chlorinated aromatic spacersen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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