Journal ArticleDOI
Electrochemically Tunable Magnetic Phase Transition in a High-Tc Chromium Cyanide Thin Film
TLDR
In this paper, a molecular-based ferrimagnetic thin films with high critical temperatures (Tc) composed of mixed-valence chromium cyanides were synthesized by means of a simple electrochemical route.Abstract:
Molecular-based ferrimagnetic thin films with high critical temperatures (Tc) composed of mixed-valence chromium cyanides were synthesized by means of a simple electrochemical route. The highest Tc was 270 K, obtained for Cr2.12(CN)6. The Tc values were easily controlled by changing the preparation conditions. Moreover, a reversible shift of Tc could be electrochemically induced. As a result of such electrochemical control, these cyanides can be switched reversibly back and forth between ferrimagnetism and paramagnetism. These magnets thus represent materials in which magnetic properties are combined with electrical functions.read more
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Reticular synthesis and the design of new materials
Omar M. Yaghi,Michael O'Keeffe,Nathan W. Ockwig,Hee K. Chae,Hee K. Chae,Mohamed Eddaoudi,Jaheon Kim +6 more
TL;DR: This work has shown that highly porous frameworks held together by strong metal–oxygen–carbon bonds and with exceptionally large surface area and capacity for gas storage have been prepared and their pore metrics systematically varied and functionalized.
Journal ArticleDOI
Engineering coordination polymers towards applications
TL;DR: In this paper, the development in the field of coordination polymers or metal-organic coordination networks, MOCNs (metal-organic frameworks, MOFs) is assessed in terms of property investigations in the areas of catalysis, chirality, conductivity, luminescence, magnetism, spin-transition (spin-crossover), nonlinear optics (NLO) and porosity or zeolitic behavior upon which potential applications could be based.
Journal ArticleDOI
Photoinduced Magnetization of a Cobalt-Iron Cyanide
TL;DR: The magnetization in the ferrimagnetic region below 16 kelvin was substantially increased after illumination and could be restored almost to its original level by thermal treatment and these effects are thought to be caused by an internal photochemical redox reaction.
Journal ArticleDOI
Control of magnetic properties through external stimuli.
TL;DR: Most of the Review is devoted to the properties of valence-tautomeric compounds, molecular magnets, and spin-crossover complexes, which could find future application in memory devices or optical switches.
Journal ArticleDOI
From Condensed Lanthanide Coordination Solids to Microporous Frameworks Having Accessible Metal Sites
TL;DR: In this article, the combination of terbium nitrate and 1,4-benzenedicarboxylic acid (H2BDC) in the presence of triethylamine yields the compound Tb2(BDC), which has an extended nonporous structure constructed from copolymerized BDC and Tb(III) units.
References
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Journal ArticleDOI
Organic and Organometallic Molecular Magnetic Materials—Designer Magnets
Joel S. Miller,Arthur J. Epstein +1 more
TL;DR: In this paper, a tutorial of typical magnetic behavior of molecular materials is presented and three distinct models (intramolecular spin coupling through orthogonal orbitals in the same spatial region within a molecule/ion, intermolecular spins coupling through pairwise configuration interaction between spin-containing moieties, and dipole-dipole, through-space interactions) which enable the design of new molecular-based magnetic materials are discussed.
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Electrochemistry of polynuclear transition metal cyanides: Prussian blue and its analogues
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A room-temperature molecular/organic-based magnet
TL;DR: Threedimensional antiferromagnetic exchange of the donor and acceptor spins resulting in ferrimagnetic behavior appears to be the mode of magnetic coupling.
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High-Tc Molecular-Based Magnets: Ferrimagnetic Mixed-Valence Chromium(III)-Chromium(II) Cyanides with Tc at 240 and 190 Kelvin
TL;DR: A simple orbital model was used to predict the electronic structure of the metal ions required to achieve a high ordering temperature, and the synthesis and magnetic properties of two compounds, [Cr5(CN)12].10H2O and Cs0.75 [Cr2.125( CN)6]�5H2 O, are reported, together with the strategy for further work.