Iron(ii) spin crossover complexes with diaminonaphthalene-based Schiff base-like ligands: 1D coordination polymers

2016 ◽  
Vol 40 (5) ◽  
pp. 4687-4695 ◽  
Author(s):  
Charles Lochenie ◽  
Andreas Gebauer ◽  
Ottokar Klimm ◽  
Florian Puchtler ◽  
Birgit Weber
Keyword(s):  
Schiff Base ◽  
Structural Properties ◽  
Coordination Polymers ◽  
Spin Crossover ◽  
Hysteresis Loops ◽  
Bridging Ligands ◽  
Wide Hysteresis ◽  
Spin Crossover Complexes

Iron(ii) spin crossover coordination polymers with diaminonaphthalene derived Schiff base-like ligands were synthesised, and their magnetic and structural properties were analysed. Rigid bridging ligands having up to 40 K wide hysteresis loops were observed.

scholarly journals Iron(ii) spin crossover complexes with diaminonaphthalene-based Schiff base-like ligands: mononuclear complexes

2015 ◽  
Vol 44 (41) ◽  
pp. 18065-18077 ◽  
Author(s):  
Charles Lochenie ◽  
Julia Heinz ◽  
Wolfgang Milius ◽  
Birgit Weber
Keyword(s):  
Schiff Base ◽  
Structural Properties ◽  
Spin Crossover ◽  
Mononuclear Complexes ◽  
Spin Crossover Complexes

Iron(ii) spin crossover (SCO) complexes with diaminonaphthalene derived Schiff base-like ligand were synthesised, and their magnetic and structural properties analysed.

scholarly journals Iron(II) Spin Crossover Complexes with 4,4′-Dipyridylethyne—Crystal Structures and Spin Crossover with Hysteresis

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 581 ◽  
Author(s):  
Katja Dankhoff ◽  
Charles Lochenie ◽  
Birgit Weber
Keyword(s):  
Coordination Polymers ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Hysteresis Loops ◽  
Structure Property ◽  
Crossover Behavior ◽  
Structure Property Relationship ◽  
Wide Hysteresis ◽  
Xrd Patterns ◽  
Relationship Of

Three new iron(II) 1D coordination polymers with cooperative spin crossover behavior showing thermal hysteresis loops were synthesized using N2O2 Schiff base-like equatorial ligands and 4,4′-dipyridylethyne as a bridging, rigid axial linker. One of those iron(II) 1D coordination polymers showed a 73 K wide hysteresis below room temperature, which, upon solvent loss, decreased to a still remarkable 30 K wide hysteresis. Single crystal X-ray structures of two iron(II) coordination polymers and T-dependent powder XRD patterns are discussed to obtain insight into the structure property relationship of those materials.

Compensation effects and relation between the activation energy of spin transition and the hysteresis loop width for an iron(ii) complex

2016 ◽  
Vol 18 (25) ◽  
pp. 16690-16699 ◽  
Author(s):  
Mark B. Bushuev ◽  
Denis P. Pishchur ◽  
Elena B. Nikolaenkova ◽  
Viktor P. Krivopalov
Keyword(s):  
Hysteresis Loop ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Activation Barrier ◽  
Spin Transition ◽  
Hysteresis Loops ◽  
High Activation ◽  
Activation Barriers ◽  
Spin Crossover Complexes ◽  
Hysteresis Loop Width

Wide thermal hysteresis loops for iron(ii) spin crossover complexes are associated with high activation barriers: the higher the activation barrier, the wider the hysteresis loop for a series of related spin crossover systems.

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.

Isostructural iron(iii) spin crossover complexes with a tridentate Schiff base-like ligand: X-ray structures and magnetic properties

2019 ◽  
Vol 48 (41) ◽  
pp. 15376-15380 ◽  
Author(s):  
Katja Dankhoff ◽  
Birgit Weber
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Spin Crossover ◽  
X Ray ◽  
Size Dependent ◽  
Spin Crossover Complexes ◽  
Tridentate Schiff Base

Two isostructural iron(iii) spin crossover complexes show anion-size dependent spin crossover.

Iron(II) Spin Crossover Complexes Based on a Redox Active Equatorial Schiff-Base-Like Ligand

2020 ◽  
Vol 59 (12) ◽  
pp. 8320-8333 ◽  
Author(s):  
Sophie Schönfeld ◽  
Katja Dankhoff ◽  
Dirk Baabe ◽  
Marc-Kevin Zaretzke ◽  
Martin Bröring ◽  
...  
Keyword(s):  
Schiff Base ◽  
Spin Crossover ◽  
Redox Active ◽  
Spin Crossover Complexes

A Promising New Schiff Base-like Ligand for the Synthesis of Octahedral Iron(II) Spin Crossover Complexes

2010 ◽  
Vol 65 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Wolfgang Bauer ◽  
Tanja Ossiander ◽  
Birgit Weber
Keyword(s):  
Schiff Base ◽  
High Spin ◽  
Spin Crossover ◽  
Magnetic Measurements ◽  
X Ray ◽  
X Ray Crystallography ◽  
Tetradentate Schiff Base ◽  
Spin Crossover Complexes

A new tetradentate Schiff base-like ligand H2L (1) ((E,E)-dimethyl-2,2´-[1,2-phenylenebis(aminomethylidyne)] bis[3-oxobutanoate]) was synthesised and structurally characterised. Its reaction with iron(II) acetate leads to the formation of the octahedral N2O4-coordinated complex [FeL(MeOH)2] (2). The complex is a pure high-spin (HS) compound as is evident from magnetic measurements and X-ray crystallography.

scholarly journals Spin-crossover iron(II) coordination polymers with tetradentate Schiff-base ligands

2020 ◽  
Vol 50 (11) ◽  
pp. 1737-1744
Author(s):  
Jian Su ◽  
Jing-Lin Zuo ◽  
Jia-Qian Li ◽  
Ya-Ru Qiu ◽  
Jing-Yuan Ge
Keyword(s):  
Schiff Base ◽  
Coordination Polymers ◽  
Spin Crossover ◽  
Schiff Base Ligands ◽  
Tetradentate Schiff Base

Iron(II) Spin-Crossover Complexes with Schiff Base Like Ligands andN-Alkylimidazoles

2014 ◽  
Vol 2015 (3) ◽  
pp. 408-413 ◽  
Author(s):  
Stephan Schlamp ◽  
Charles Lochenie ◽  
Tobias Bauer ◽  
Rhett Kempe ◽  
Birgit Weber
Keyword(s):  
Schiff Base ◽  
Spin Crossover ◽  
Spin Crossover Complexes
Sign in / Sign up

Export Citation Format

Share Document