Wavelength selective light-induced magnetic effects in the binuclear spin crossover compound{[Fe(bt)(NCS)2]2(bpym)}

Using Fourier transform infrared spectroscopy, x-ray diffraction, and magnetic susceptibility measurements under light irradiation, the selective light-induced excited spin state trapping (LIESST) and the reversible-LIESST effect have been evidenced and studied in depth in the binuclear spin crossover compound {[Fe(bt)(NCS)2]2bpym}. In this system, each magnetic site can switch from low spin (LS) to high spin (HS), so that three states exist, namely, the LS-LS, HS-LS, and HS-HS. All these techniques shine a new light on the high phototunability of this system. In addition to the direct photoswitching from the LS-LS to the HS-LS or to the HS-HS state, here we show that photoinduced switching…

Innenrücktitelbild: First Step Towards a Devil's Staircase in Spin-Crossover Materials (Angew. Chem. 30/2016)

Inside Back Cover: First Step Towards a Devil's Staircase in Spin-Crossover Materials (Angew. Chem. Int. Ed. 30/2016)

International audience; Periodic and aperiodic spin-state concentration waves form during “Devil's staircase”-type spin-crossover in a new bimetallic 2D coordination polymer {Fe[(Hg(SCN)3)2](4,4′-bipy)2}n. In their Communication on page 8675 ff., J. A. Real, E. Collet et al. describe the appearance of spin-state concentration waves between long-range spatially ordered structures of low- and high-spin states during multistep spin-crossover.

CCDC 1457782: Experimental Crystal Structure Determination

Related Article: Daopeng Zhang, Elzbieta Trzop, Francisco J. Valverde-Muñoz, Lucía Piñeiro-López, M. Carmen Muñoz, Eric Collet, José A. Real|2017|Cryst.Growth Des.|17|2736|doi:10.1021/acs.cgd.7b00218

CCDC 1457783: Experimental Crystal Structure Determination

Related Article: Daopeng Zhang, Elzbieta Trzop, Francisco J. Valverde-Muñoz, Lucía Piñeiro-López, M. Carmen Muñoz, Eric Collet, José A. Real|2017|Cryst.Growth Des.|17|2736|doi:10.1021/acs.cgd.7b00218

CCDC 1457781: Experimental Crystal Structure Determination

Related Article: Daopeng Zhang, Elzbieta Trzop, Francisco J. Valverde-Muñoz, Lucía Piñeiro-López, M. Carmen Muñoz, Eric Collet, José A. Real|2017|Cryst.Growth Des.|17|2736|doi:10.1021/acs.cgd.7b00218