Spin-crossover and LIESST Effect for Iron(III) Complex Based on π–π Stacking by Coordination Programming

2014 ◽  
Vol 43 (7) ◽  
pp. 1058-1060 ◽  
Author(s):  
Manabu Nakaya ◽  
Kodai Shimayama ◽  
Kohei Takami ◽  
Kazuya Hirata ◽  
Amolegbe Saliu Alao ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Π Stacking ◽  
Liesst Effect

scholarly journals Cooperative spin-crossover transition from three-dimensional purely π-stacking interactions in a neutral heteroleptic azobisphenolate FeIII complex with a N3O3 coordination sphere

2017 ◽  
Vol 46 (18) ◽  
pp. 5786-5789 ◽  
Author(s):  
Suguru Murata ◽  
Kazuyuki Takahashi ◽  
Tomoyuki Mochida ◽  
Takahiro Sakurai ◽  
Hitoshi Ohta ◽  
...  
Keyword(s):  
Coordination Sphere ◽  
Spin Crossover ◽  
Three Dimensional ◽  
Interaction Network ◽  
Stacking Interactions ◽  
Stacking Interaction ◽  
Π Stacking ◽  
Π Stacking Interaction ◽  
Crossover Transition ◽  
Cooperative Transition

The first neutral spin-crossover FeIII complex with a N3O3 coordination sphere formed a purely π-stacking interaction network and exhibited the cooperative transition.

Evidencing size-dependent cooperative effects on spin crossover nanoparticles following their HS→LS relaxation

2018 ◽  
Vol 6 (46) ◽  
pp. 12698-12706 ◽  
Author(s):  
Teresa Delgado ◽  
Cristian Enachescu ◽  
Antoine Tissot ◽  
Andreas Hauser ◽  
Laure Guénée ◽  
...  
Keyword(s):  
Spin State ◽  
Spin Crossover ◽  
Size Dependence ◽  
Relaxation Mechanism ◽  
Cooperative Effects ◽  
Size Dependent ◽  
Liesst Effect

The size dependence of the relaxation mechanism after photo-excitation through the Light-Induced Excited Spin-State Trapping (LIESST) effect of [Fe(pz)Pt(CN)4] micro- and nanoparticles is evidenced experimentally and simulated in the framework of the mechanoelastic model.

Critical temperature of the LIESST effect in iron(II) spin crossover compounds

1999 ◽  
Vol 313 (1-2) ◽  
pp. 115-120 ◽  
Author(s):  
Jean-François Létard ◽  
Laurence Capes ◽  
Guillaume Chastanet ◽  
Nicolas Moliner ◽  
Sylvie Létard ◽  
...  
Keyword(s):  
Critical Temperature ◽  
Spin Crossover ◽  
Liesst Effect

scholarly journals Photo-switching spin pairs—synergy between LIESST effect and magnetic interaction in an iron(ii) binuclear spin-crossover compound

2001 ◽  
pp. 819-820 ◽  
Author(s):  
Guillaume Chastanet ◽  
Jean-François Létard ◽  
Ana B. Gaspar ◽  
José Antonio Real
Keyword(s):  
Spin Crossover ◽  
Magnetic Interaction ◽  
Liesst Effect ◽  
Spin Pairs

scholarly journals Spin crossover and LIESST effect of new iron(II) complexes with imidazole containing ligands

2009 ◽  
Vol 148 ◽  
pp. 012029 ◽  
Author(s):  
Naohide Matsumoto ◽  
Tetsuya Sato ◽  
Shingo Hashimoto ◽  
Masaaki Kojima ◽  
Seiichiro Iijima
Keyword(s):  
Spin Crossover ◽  
Liesst Effect

Novel Fe(ii) spin crossover complexes involving a chalcogen-bond and π-stacking interactions with a paramagnetic and nonmagnetic M(dmit)2 anion (M = Ni, Au; dmit = 4,5-dithiolato-1,3-dithiole-2-thione)

2015 ◽  
Vol 3 (30) ◽  
pp. 7858-7864 ◽  
Author(s):  
Mitsunobu Okai ◽  
Kazuyuki Takahashi ◽  
Takahiro Sakurai ◽  
Hitoshi Ohta ◽  
Takashi Yamamoto ◽  
...  
Keyword(s):  
Radical Anion ◽  
Spin Crossover ◽  
Paramagnetic State ◽  
Stacking Interactions ◽  
Chalcogen Bond ◽  
Π Stacking ◽  
Spin Crossover Complexes ◽  
Crossover Transition

A novel Fe(ii) complex with a π-radical anion exhibited a complete spin crossover transition with a stable paramagnetic state due to a strong chalcogen-bond and π-stacking interactions.

scholarly journals Co(NCS)2(abpt)2 and Ni(NCS)2(abpt)2 [abpt is 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole]: structural characterization of polymorphs A and B

2021 ◽  
Vol 77 (12) ◽  
Author(s):  
Helen E. Mason ◽  
Judith A. K. Howard ◽  
Hazel A. Sparkes
Keyword(s):  
Hydrogen Bond ◽  
Structural Characterization ◽  
Spin Crossover ◽  
Stacking Interactions ◽  
Π Stacking

The synthesis and structures of bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2 N 2,N 3]bis(thiocyanato-κN)cobalt(II), [Co(NCS)2(C12H10N6)2] or Co(NCS)2(abpt)2, and bis[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-κ2 N 2,N 3]bis(thiocyanato-κN)nickel(II), [Ni(NCS)2(C12H10N6)2] or Ni(NCS)2(abpt)2, are reported. In both cases, two polymorphs, A and B, were identified and structurally characterized. For both polymorphs, the structures obtained with the different metals, i.e. CoII or NiII, were found to be isostructural. All of the structures contained an intramolecular N—H...N hydrogen bond, C—H...N interactions and π–π stacking interactions. No structural evidence was observed for a thermal spin crossover for either of the Co(NCS)2(abpt)2 polymorphs between 300 (2) and 120 (2) K.

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