Solid-State Redox Switching of Magnetic Exchange and Electronic Conductivity in a Benzoquinoid-Bridged MnII Chain Compound

作者: Ie-Rang Jeon , Lei Sun , Bogdan Negru , Richard P. Van Duyne , Mircea Dincă

DOI: 10.1021/JACS.6B02485

关键词: Raman spectroscopyLigandChain (algebraic topology)ChemistryMetalationElectrochromismRedoxInorganic chemistryElectron transferCrystallographyAbsorption spectroscopy

摘要: We demonstrate that incorporation of a redox-active benzoquinoid ligand into one-dimensional chain compound can give rise to material exhibits simultaneous solid-state redox switching optical, magnetic, and electronic properties. Metalation the 4,5-bis(pyridine-2-carboxamido)-1,2-catechol (N,OLH4) with MnIII affords Mn(N,OL)(DMSO). Structural spectroscopic analysis this show presence MnII centers bridged by N,OL2– ligands, resulting partially from spontaneous ligand-to-metal electron transfer. Upon soaking in solution reductant Cp2Co, Mn(N,OL)(DMSO) undergoes ligand-centered reduction [Mn(N,OL)]−, as revealed suite techniques, including Raman X-ray absorption spectroscopy. The ligand-based engenders dramatic modulation physical properties compound. An electrochromic response, evidenced color change dark green purple is accompanied nearly 40-fold inc...

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