Vibrational Spectroscopy of Cyanide-Bridged, Iron(II) Spin-Crossover Coordination Polymers:  Estimation of Vibrational Contributions to the Entropy Change Associated with the Spin Transition†

2002 ◽  
Vol 106 (38) ◽  
pp. 9701-9707 ◽  
Author(s):  
Gábor Molnár ◽  
Virginie Niel ◽  
Ana B. Gaspar ◽  
José-A. Real ◽  
Antoine Zwick ◽  
...  
Keyword(s):  
Vibrational Spectroscopy ◽  
Coordination Polymers ◽  
Spin Crossover ◽  
Spin Transition ◽  
Entropy Change

Amphiphilic iron(ii) spin crossover coordination polymers: crystal structures and phase transition properties

2019 ◽  
Vol 7 (5) ◽  
pp. 1151-1163 ◽  
Author(s):  
Johannes Weihermüller ◽  
Stephan Schlamp ◽  
Wolfgang Milius ◽  
Florian Puchtler ◽  
Josef Breu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Crystal Structures ◽  
Coordination Polymers ◽  
Spin Crossover ◽  
Spin Transition ◽  
Spin Crossover Complexes ◽  
Platelet Formation

A cooperative spin transition and thin platelet formation is observed for 1D coordination polymers of amphiphilic iron(ii) spin crossover complexes.

scholarly journals Correction: Unravelling the chemical design of spin-crossover nanoparticles based on iron(ii)–triazole coordination polymers: towards a control of the spin transition

2016 ◽  
Vol 4 (16) ◽  
pp. 3661-3661
Author(s):  
Mónica Giménez-Marqués ◽  
M. Luisa García-Sanz de Larrea ◽  
Eugenio Coronado
Keyword(s):  
Coordination Polymers ◽  
Spin Crossover ◽  
Spin Transition ◽  
Chemical Design

Correction for ‘Unravelling the chemical design of spin-crossover nanoparticles based on iron(ii)–triazole coordination polymers: towards a control of the spin transition’ by Mónica Giménez-Marqués et al., J. Mater. Chem. C, 2015, 3, 7946–7953.

scholarly journals Preserving the spin transition properties of iron-triazole coordination polymers within silica-based nanocomposites

2017 ◽  
Vol 5 (44) ◽  
pp. 11542-11550 ◽  
Author(s):  
H. Voisin ◽  
C. Aimé ◽  
A. Vallée ◽  
A. Bleuzen ◽  
M. Schmutz ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Spin Crossover ◽  
Spin Transition ◽  
Silica Particles ◽  
One Dimensional

Composites integrating one dimensional iron(ii) polymers and silica particles preserve the spin-crossover properties of polymer when the interface polymer-silica is controlled.

scholarly journals Unravelling the chemical design of spin-crossover nanoparticles based on iron(ii)–triazole coordination polymers: towards a control of the spin transition

2015 ◽  
Vol 3 (30) ◽  
pp. 7946-7953 ◽  
Author(s):  
Mónica Giménez-Marqués ◽  
M. Luisa García-Sanz de Larrea ◽  
Eugenio Coronado
Keyword(s):  
Coordination Polymers ◽  
Systematic Study ◽  
Spin Crossover ◽  
Spin Transition ◽  
Chemical Design

We present a systematic study of the key synthetic parameters that control the growth of Fe–triazole spin-crossover nanoparticles and the effect of this size modulation on the spin transition.

scholarly journals Iron(II) Spin Crossover Coordination Polymers Derived From a Redox Active Equatorial Tetrathiafulvalene Schiff-Base Ligand

2021 ◽  
Vol 9 ◽  
Author(s):  
Ya-Ru Qiu ◽  
Long Cui ◽  
Jing-Yuan Ge ◽  
Mohamedally Kurmoo ◽  
Guijun Ma ◽  
...  
Keyword(s):  
Schiff Base ◽  
Coordination Polymers ◽  
Fluorescence Intensity ◽  
Schiff Base Ligand ◽  
Layered Structure ◽  
Spin Crossover ◽  
Spin Transition ◽  
Redox Activity ◽  
Transition Behavior ◽  
Redox Active

Two polymorphic FeII coordination polymers [FeIIL (TPPE)0.5] 1) and [(FeII3L3 (TPPE)1.5)] 2), were obtained from a redox-active tetrathiafulvalene (TTF) functionalized ligand [H2L = 2,2’-(((2-(4,5-bis-(methylthio)-1,3-dithiol-2-ylidene)benzo(d) (1,3) dithiole-5,6-diyl)bis-(azanediyl))bis-(meth anylylidene)) (2E,2E')-bis(3-oxobutanoate)] and a highly luminescent connector {TPPE = 1,1,2,2-tetrakis[4-(pyridine-4-yl)phenyl]-ethene}. Complex 1 has a layered structure where the TPPE uses its four diverging pyridines from the TPPE ligand are coordinated by the trans positions to the flat TTF Schiff-base ligand, and complex 2 has an unprecedented catenation of layers within two interpenetrated frameworks. These coordination polymers reserved the redox activity of the TTF unit. Complex 1 shows gradual spin transition behavior without hysteresis. And the fluorescence intensity of TPPE in 1 changes in tandem with the spin crossover (SCO) transition indicating a possible interplay between fluorescence and SCO behavior.

Abrupt spin crossover in iron(iii) complexes with aromatic anions

2019 ◽  
Vol 48 (41) ◽  
pp. 15515-15520 ◽  
Author(s):  
Sharon E. Lazaro ◽  
Adil Alkaş ◽  
Seok J. Lee ◽  
Shane G. Telfer ◽  
Keith S. Murray ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Spin Crossover ◽  
Spin Transition ◽  
Halogen Bonds ◽  
Aromatic Anions

Two iron(iii) complexes, [Fe(qsal-X)2]OTs·nH2O, are found to exhibit abrupt spin crossover with the spin transition temperature substituent dependent, and X⋯O halogen bonds linking the spin centres.

Single crystal to single crystal transformation of spin-crossover coordination polymers from 3D frameworks to 2D layers

2021 ◽  
Vol 9 (15) ◽  
pp. 5082-5087
Author(s):  
Yu Gong ◽  
Wang-Kang Han ◽  
Hui-Shu Lu ◽  
Qing-Tao Hu ◽  
Huan Tu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Ligand Exchange ◽  
Spin Crossover ◽  
Metal Organic Frameworks ◽  
Crystal Transformation ◽  
Metal Organic

New Hofmann-type metal–organic frameworks display rare and complete ligand exchange induced single crystal to single crystal transformations from 3D frameworks to 2D layers, accompanied by magnetic properties transition from two-step SCO behavior to hysteretic SCO behavior.

scholarly journals Electrical read-out of light-induced spin transition in thin film spin crossover/graphene heterostructures

2021 ◽  
Author(s):  
Nikita Konstantinov ◽  
Arthur Tauzin ◽  
Ulrich Nguetchuissi Noumbé ◽  
Diana Dragoe ◽  
Bohdan Kundys ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Crossover ◽  
Spin Transition ◽  
Switching Device ◽  
Electronic Switching ◽  
Spin Transitions

An opto-electronic switching device made from an evaporated spin crossover thin film over a graphene sensor is presented. The electrical transduction of both temperature and light-induced reversible spin transitions are demonstrated.

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