Please use this identifier to cite or link to this item: https://doi.org/10.31635/ccschem.020.202000204
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dc.titleMultiresponsive spin crossover driven by rotation of tetraphenylborate anion in an iron(III) complex
dc.contributor.authorWu, SG
dc.contributor.authorHoque, MN
dc.contributor.authorZheng, JY
dc.contributor.authorHuang, GZ
dc.contributor.authorVu Ha Anh, N
dc.contributor.authorUngur, L
dc.contributor.authorZhang, WX
dc.contributor.authorNi, ZP
dc.contributor.authorTong, ML
dc.date.accessioned2022-07-20T06:25:43Z
dc.date.available2022-07-20T06:25:43Z
dc.date.issued2021-01-01
dc.identifier.citationWu, SG, Hoque, MN, Zheng, JY, Huang, GZ, Vu Ha Anh, N, Ungur, L, Zhang, WX, Ni, ZP, Tong, ML (2021-01-01). Multiresponsive spin crossover driven by rotation of tetraphenylborate anion in an iron(III) complex. CCS Chemistry 3 (1) : 453-459. ScholarBank@NUS Repository. https://doi.org/10.31635/ccschem.020.202000204
dc.identifier.issn20965745
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/228897
dc.description.abstractDynamic molecular materials, which involve mechanical motions in crystals, usually exhibit tunable properties related to conformational polymorphs. Herein, we describe a solvent-free molecular crystal [{FeIII(salten)}2(TPB)](BPh4)2 (I) developed by associating the rotatable tetraphenylborate anion with the spin crossover (SCO) binuclear iron(III) cation. The solvent-free phase I can undergo a temperature-induced phase transformation to phase II, during which rotation of the BPh4− anion interplays with the SCO component, giving rise to fascinating variations in SCO (from gradual to abrupt) and dielectric properties. Most importantly, an unexpected polymorphic transformation from II to III or IV, with increasing magnetic hysteresis, is realized by exposing II to water or ethanol vapor; the transition is reversible by heating. This rare successive transformation is further rationalized by theoretical calculations. Hence, this multiresponse system provides a new way for modulating synergistic effects and designing dynamic SCO materials by integrating intramolecular motions in the crtystal lattice.
dc.publisherChinese Chemical Society
dc.sourceElements
dc.typeArticle
dc.date.updated2022-07-15T03:31:04Z
dc.contributor.departmentCHEMISTRY
dc.description.doi10.31635/ccschem.020.202000204
dc.description.sourcetitleCCS Chemistry
dc.description.volume3
dc.description.issue1
dc.description.page453-459
dc.published.statePublished
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