2018
DOI: 10.1039/c8sc01040d
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Increasing spin crossover cooperativity in 2D Hofmann-type materials with guest molecule removal

Abstract: Ambient temperature spin crossover with wide hysteresis has been achieved in 2D Hofmann-type materials, where removal of guest molecules optimises ligand–ligand interactions, resulting in increased cooperativity.

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Cited by 94 publications
(72 citation statements)
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“…Hence, they report near ambient room temperatures and guest dependent SCO properties, as guest solvents interact with the free N of the triazole ring. [241][242][243] Additionally, some other 2D Fe II -HCPs with py derivatives as pillaring linkers also present guest sorption capabilities when the number of layers is reduced below a critical number. In this sense, [Fe II (L')2{Pt(CN)4}] (L' = py, pyrimidine and isoquinoline) ultrathin films (<30 layers) have been proven capable to accommodate solvents in-between their layers, through an axial lattice expansion observed via synchrotron XRD.…”
Section: Magnetic Bistability In Mofs and Cpsmentioning
confidence: 99%
“…Hence, they report near ambient room temperatures and guest dependent SCO properties, as guest solvents interact with the free N of the triazole ring. [241][242][243] Additionally, some other 2D Fe II -HCPs with py derivatives as pillaring linkers also present guest sorption capabilities when the number of layers is reduced below a critical number. In this sense, [Fe II (L')2{Pt(CN)4}] (L' = py, pyrimidine and isoquinoline) ultrathin films (<30 layers) have been proven capable to accommodate solvents in-between their layers, through an axial lattice expansion observed via synchrotron XRD.…”
Section: Magnetic Bistability In Mofs and Cpsmentioning
confidence: 99%
“…Transition metal complexes of 1,2,4-triazoles have attracted significant attention over the last two decades (Kunkeler et al, 1996 ; Haasnoot, 2000 ; Klingele and Brooker, 2003 ; Klingele et al, 2005 ; Kitchen and Brooker, 2008 ; Aromí et al, 2011 ; Miller and Brooker, 2016 ; Bushuev et al, 2017 ; Chen et al, 2017 , 2018 ; Feltham et al, 2017 ; Murphy et al, 2017 ; Rodríguez-Jiménez et al, 2017 ; Clements et al, 2018 ; Hogue et al, 2018 ; Li et al, 2018 ; Liu et al, 2018 ; Zenere et al, 2018 ). Much of this interest has stemmed from the spin crossover (SCO) phenomenon that is frequently observed in octahedral iron(II) complexes of 1,2,4-triazoles (Kunkeler et al, 1996 ; Haasnoot, 2000 ; Klingele and Brooker, 2003 ; Klingele et al, 2005 ; Kitchen and Brooker, 2008 ; Miller and Brooker, 2016 ; Bushuev et al, 2017 ; Chen et al, 2017 , 2018 ; Feltham et al, 2017 ; Murphy et al, 2017 ; Rodríguez-Jiménez et al, 2017 ; Clements et al, 2018 ; Hogue et al, 2018 ; Li et al, 2018 ; Liu et al, 2018 ; Zenere et al, 2018 ). Additionally, exchange coupling between triazole bridged metal centers has resulted in families of dinuclear, trinuclear and even polymeric complexes being targeted for the development of magnetically interesting complexes (Hogue et al, 2018 ).…”
Section: Introductionmentioning
confidence: 99%
“…[14][15][16][17][18][19][20][21] Theuptake/release of organic solvents has been used in many instances to induce guestdependent spin conversions and, for example,awide range of organic solvents has been reported to influence on SCO behaviors in PCPs. [22][23][24][25][26][27][28][29][30][31][32][33] Such solvent guest uptake/release has also been well demonstrated to influence on SCO behaviors in discrete molecular complexes via structural changes in the associated crystal lattices. [34][35][36][37][38][39][40][41][42] Similarly,n on-solvent guest molecules such as organic molecules, [43][44][45][46][47][48][49] halogens, [50,51] and common gas molecules such as nitrogen (N 2 ), oxygen (O 2 ), carbon monoxide (CO), carbon dioxide (CO 2 ), and sulfur dioxide (SO 2 ), have all been shown to affect SCO behavior in ar ange of metal complex types.…”
Section: Introductionmentioning
confidence: 99%
“…Motivated by this, such porous materials have been seen as potential guest‐detectable SCO materials . The uptake/release of organic solvents has been used in many instances to induce guest‐dependent spin conversions and, for example, a wide range of organic solvents has been reported to influence on SCO behaviors in PCPs . Such solvent guest uptake/release has also been well demonstrated to influence on SCO behaviors in discrete molecular complexes via structural changes in the associated crystal lattices .…”
Section: Introductionmentioning
confidence: 99%