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Carboxylic acid functionalized spin-crossover iron(II) grids for tunable switching and hybrid electrode fabrication (2018)
Journal Article
Shiga, T., Sato, Y., Tachibana, M., Sato, H., Matsumoto, T., Sagayama, H., …Oshio, H. (2018). Carboxylic acid functionalized spin-crossover iron(II) grids for tunable switching and hybrid electrode fabrication. Inorganic Chemistry, 57(22), 14013-14017. https://doi.org/10.1021/acs.inorgchem.8b01856

Two carboxyl-substituted iron(II) grids, one protonated, [Fe4(HL)4](BF4)4·4MeCN·AcOEt (1), and the other deprotonated, [Fe4(L)4]·DMSO·EtOH (2), where H2L = 4-{4,5-bis[6-(3,5-dimethylpyrazol-1-yl)pyrid-2-yl]-1H-imidazol-2-yl}benzoic acid, were synthes... Read More about Carboxylic acid functionalized spin-crossover iron(II) grids for tunable switching and hybrid electrode fabrication.

Tuning the electronic structure of organic–inorganic hybrid polyoxometalates: The crucial role of the covalent linkage (2018)
Journal Article
Kibler, A. J., & Newton, G. N. (2018). Tuning the electronic structure of organic–inorganic hybrid polyoxometalates: The crucial role of the covalent linkage. Polyhedron, 154, 1-20. https://doi.org/10.1016/j.poly.2018.06.027

The covalent organofunctionalization of polyoxometalates (POMs) has been widely used to both control and enhance their redox properties, particularly for applications in catalysis, energy storage, optics and molecular magnetism. The design of such sy... Read More about Tuning the electronic structure of organic–inorganic hybrid polyoxometalates: The crucial role of the covalent linkage.

Cobalt complexes with redox-active anthraquinone-type ligands (2018)
Journal Article
Shiga, T., Kumamaru, R., Newton, G. N., & Oshio, H. (2018). Cobalt complexes with redox-active anthraquinone-type ligands. Dalton Transactions, 47(23), https://doi.org/10.1039/C8DT00586A

Three anthraquinone-type multidentate ligands, HL1-3 (HL = 2-R-1H-anthra[1,2-d]imidazole6,11-dione, HL1; R = (2-pyridyl), HL2; R = (4,6-dimethyl-2-pyridyl), HL3; R = (6-methoxy-2pyridyl)), were prepared, and their complexation behaviour were investig... Read More about Cobalt complexes with redox-active anthraquinone-type ligands.

Pre-programmed self-assembly of polynuclear clusters (2018)
Journal Article
Shiga, T., Newton, G. N., & Oshio, H. (in press). Pre-programmed self-assembly of polynuclear clusters. Dalton Transactions, https://doi.org/10.1039/C8DT00822A

This perspective reviews our recent efforts towards the self-assembly of polynuclear clusters with ditopic and tritopic multidentate ligands HL1 (2-phenyl-4,5-bis{6-(3,5-dimethylpyrazol-1-yl)pyrid-2-yl}-1H-imidazole) and H2L2 (2,6-bis-[5-(2-pyridinyl... Read More about Pre-programmed self-assembly of polynuclear clusters.

Synthesis, crystal structures and magnetic properties of composites incorporating an Fe(II) spin crossover complex and polyoxometalates (2017)
Journal Article
Kuramochi, S., Shiga, T., Cameron, J. M., Newton, G. N., & Oshio, H. (2017). Synthesis, crystal structures and magnetic properties of composites incorporating an Fe(II) spin crossover complex and polyoxometalates. Inorganics, 5(3), Article 48. https://doi.org/10.3390/inorganics5030048

[Fe(dppOH)2]2+ (dppOH = 2,6-di(pyrazol-1-yl)-4-(hydroxymethyl)pyridine) is known to show spin crossover (SCO) behavior and light-induced excited spin state transitions (LIESST). Here, we show that the SCO properties of the [Fe(dppOH)2]2+ complex can... Read More about Synthesis, crystal structures and magnetic properties of composites incorporating an Fe(II) spin crossover complex and polyoxometalates.

An antiferromagnetically coupled heterometal Cu6Fe wheel (2017)
Journal Article
Saiki, R., Yoshida, N., Hoshino, N., Newton, G. N., Shiga, T., & Oshio, H. (2017). An antiferromagnetically coupled heterometal Cu6Fe wheel. Chemistry Letters, 46(8), https://doi.org/10.1246/cl.170365

A heterometal Cu6Fe wheel molecule, [CuII6FeIII(HL)6- (OH)2(OCH3)4](NO3)3¢6H2O (1¢6H2O) (H2L = 1-(2-pyridine) 3-(2-pyrrole)acetylacetone) was synthesized by the one-pot reaction of H2L with copper and iron sources. X-ray structural analysis reveals t... Read More about An antiferromagnetically coupled heterometal Cu6Fe wheel.

Orbital engineering: photoactivation of an organofunctionalized polyoxotungstate (2016)
Journal Article
Newton, G., Oshio, H., Cameron, J., Fujimoto, S., Kastner, K., Wei, R. J., …Sans, V. (2017). Orbital engineering: photoactivation of an organofunctionalized polyoxotungstate. Chemistry - A European Journal, 23(1), 47-50. https://doi.org/10.1002/chem.201605021

Tungsten-based polyoxometalates (POMs) are employed as UV-driven photo-catalysts for a range of organic transformations. Their photoactivity is dependent on electronic transitions between frontier orbitals, and thus manipulation of orbital energy lev... Read More about Orbital engineering: photoactivation of an organofunctionalized polyoxotungstate.

Oxalate-bridged heterometallic chains with monocationic dabco derivatives (2016)
Journal Article
Sakurai, T., Saiki, R., Wei, R. J., Newton, G., Shiga, T., & Oshio, H. (in press). Oxalate-bridged heterometallic chains with monocationic dabco derivatives. Dalton Transactions, 45, https://doi.org/10.1039/C6DT02955H

A series of bimetallic oxalate-bridged one-dimensional chains with monocationic dabco derivatives, ({R-dabco}[M(solv)2][Cr(ox)3]·n(solv)) (dabco = 1,4-diazabicyclo[2.2.2]octane, H2ox = oxalate; R = H, M = Co (1); R = H, M = Zn (2); R = Bu, M = Co (3)... Read More about Oxalate-bridged heterometallic chains with monocationic dabco derivatives.

Studies on the magnetic ground state of a spin Möbius strip (2016)
Journal Article
Newton, G., Hoshino, N., Matsumoto, T., Shiga, T., Nakano, M., Nojiri, H., …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

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... Read More about Studies on the magnetic ground state of a spin Möbius strip.

Cyanide-Bridged Decanuclear Cobalt–Iron Cage (2014)
Journal Article
Oshio, H., Shiga, T., Newton, G. N., Tetsuka, T., Nihei, M., Sakai, K., & Sekine, Y. (2014). Cyanide-Bridged Decanuclear Cobalt–Iron Cage. Inorganic Chemistry, 53(12), 5899-5901. https://doi.org/10.1021/ic500964m

A cyanide-bridged decanuclear [Co6Fe4] cluster was synthesized by a one-pot reaction, and the magnetic properties and electronic configuration were investigated. The complex displayed thermally controlled electron-transfer-coupled spin transition (ET... Read More about Cyanide-Bridged Decanuclear Cobalt–Iron Cage.

Programmable spin-state switching in a mixed-valence spin-crossover iron grid (2014)
Journal Article
Matsumoto, T., Newton, G. N., Shiga, T., Hayami, S., Matsui, Y., Okamoto, H., …Oshio, H. (2014). Programmable spin-state switching in a mixed-valence spin-crossover iron grid. Nature Communications, 5, 1-8. https://doi.org/10.1038/ncomms4865

Photo-switchable systems, such as discrete spin-crossover complexes and bulk iron–cobalt Prussian blue analogues, exhibit, at a given temperature, a bistability between low- and high-spin states, allowing the storage of binary data. Grouping differen... Read More about Programmable spin-state switching in a mixed-valence spin-crossover iron grid.