Stephen M. Holmes
University of Missouri–St. Louis
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Featured researches published by Stephen M. Holmes.
Angewandte Chemie | 2010
Yuan-Zhu Zhang; Dongfeng Li; Rodolphe Clérac; Marguerite Kalisz; Corine Mathonière; Stephen M. Holmes
Flip to be square: Structural, spectroscopic, magnetic, and photomagnetic studies conclusively demonstrate that a tetranuclear cyanometalate {Fe2Co2} complex undergoes reversible thermally and light-induced changes in optical and magnetic properties. This instability is induced by an intramolecular electron transfer, as oberved in three-dimensional Co/Fe Prussian blue compounds (see picture).
Chemistry: A European Journal | 2011
Diana Siretanu; Dongfeng Li; L. Buisson; Dario M. Bassani; Stephen M. Holmes; Corine Mathonière; Rodolphe Clérac
A new cyano-based {Fe 2 Co 2 } complex has been synthesized, and its optical and magnetic properties described in the frame of an intramolecular electron transfer. Due to methyl functionalization of the ligand, which gives good solubility to this complex, its thermally induced switchable behavior has been transferred to solution and finely tuned over a broad temperature range by adjusting the solvent composition and polarity.
Inorganic Chemistry | 2011
Yuan-Zhu Zhang; Uma Prasad Mallik; Nigam P. Rath; Rodolphe Clérac; Stephen M. Holmes
A new tricyanoferrate(III) building block and a trinuclear single-molecule magnet derivative are described. The treatment of a 2:1 ratio of [NEt(4)][(Tp*(Bn))Fe(III)(CN)(3)]·H(2)O·MeOH [1; Tp*(Bn) = tris(3,5-dimethyl-4-benzyl)pyrazolylborate] with nickel(II) trifluoromethanesulfonate gives {[(Tp*(Bn))Fe(III)(CN)(3)](2)[Ni(II)(DMF)(4)]}·2DMF (2; DMF = N,N-dimethylformamide). The symmetry-equivalent Fe(III)(LS) ions lead to a favorable alignment of anisotropy tensors (i.e., Fe···B axes) in 2, and an energy barrier of Δ(eff)/k(B) = 16.7 K is found for the S(T) = 2 complex.
Journal of Materials Chemistry C | 2015
Shinya Hayami; Stephen M. Holmes; Malcolm A. Halcrow
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Chemical Communications | 2010
Yuan-Zhu Zhang; Uma Prasad Mallik; Nigam P. Rath; Gordon T. Yee; Rodolphe Clérac; Stephen M. Holmes
Chemical Communications | 2011
Yuan-Zhu Zhang; Uma Prasad Mallik; Rodolphe Clérac; Nigam P. Rath; Stephen M. Holmes
Polyhedron | 2013
Yuan-Zhu Zhang; Uma Prasad Mallik; Rodolphe Clérac; Nigam P. Rath; Stephen M. Holmes
Polyhedron | 2013
Yuan-Zhu Zhang; Dong-Feng Li; Rodolphe Clérac; Stephen M. Holmes
Journal of Chemical Education | 2017
Philip J. Ferko; Jeffrey R. Withers; Hung Nguyen; Joshua Ema; Tim Ema; Charles Allison; Christian Dornhoefer; Nigam P. Rath; Stephen M. Holmes
Polyhedron | 2013
Yuan-Zhu Zhang; Dong-Feng Li; Rodolphe Clérac; Stephen M. Holmes