Journal ArticleDOI
Counter anion dependent gradual spin transition in a 1D cobalt(II) coordination polymer
Subhasis Roy,Somnath Choubey,Kishalay Bhar,Nivedita Sikdar,José Sánchez Costa,Partha Mitra,Barindra Kumar Ghosh +6 more
TLDR
The gradual spin transition in ·PF6 in contrast to an abrupt spin transition with a hysteresis loop in ·ClO4 has been analysed in terms of structural factors.Abstract:
One Co(II) SCO coordination polymer [Co(enbzpy)(μ1,5-dca)]n(PF6)n (1·PF6) has been isolated and characterised structurally and magnetostructurally. The properties of 1·PF6 are compared with the reported perchlorate analogue [Co(enbzpy)(μ1,5-dca)]n(ClO4)n (1·ClO4). The gradual spin transition in 1·PF6 in contrast to an abrupt spin transition with a hysteresis loop in 1·ClO4 has been analysed in terms of structural factors.read more
Citations
More filters
Journal ArticleDOI
Switchable cobalt coordination polymers: Spin crossover and valence tautomerism
Olga Drath,Colette Boskovic +1 more
TL;DR: A number of switchable cobalt coordination polymers (CPs) have been constructed using polytopic nitrogen-donor linking ligands as mentioned in this paper, where the transition from low-spin to high-spin is induced by temperature variation.
Journal ArticleDOI
Guest-Dependent Spin-Transition Behavior of Porous Coordination Polymers.
Ryo Ohtani,Shinya Hayami +1 more
TL;DR: Host-guest composites of Hofmann-type iron(II) spin-transition (ST) porous coordination polymers incorporating guest molecules show guest-dependent ST behavior in accordance with the respective guest species, which may be a gas, solvent, halogen, or organic molecule.
Journal ArticleDOI
A Case Study of Mechanical Strain in Supramolecular Complexes to Manipulate the Spin State of Iron(II) Centres
Niklas Struch,Jan Gerit Brandenburg,Gregor Schnakenburg,Norbert Wagner,Johannes Beck,Stefan Grimme,Arne Lützen +6 more
TL;DR: In this article, two meso-helicates have been synthesized and characterized by single-crystal X-ray diffraction, variable-temperature magnetic susceptibility measurements, NMR and UV/Vis spectroscopy, mass spectrometry and density functional theory (DFT) simulations.
Journal ArticleDOI
Polynuclear Fe(II) complexes: Di/trinuclear molecules and coordination networks
TL;DR: The recent progress made in the synthesis of spin crossover (SCO) Fe(II) coordination complexes with two or three metal atoms, as well as coordination polymers, with the main focus on that in the last five years, is reviewed in this article.
Journal ArticleDOI
Reversible thermo-induced spin crossover in a mononuclear cis-dicyanamido-cobalt(ii) complex containing a macrocyclic tetradentate ligand.
TL;DR: These findings represent a rare example of the successful use of pseudohalide to design and synthesize a SCO cobalt(ii) complex.
References
More filters
Journal ArticleDOI
Spin-Transition Polymers: From Molecular Materials Toward Memory Devices
O. Kahn,C. Jay Martinez +1 more
TL;DR: In this article, the transition temperature of transition metal compounds can be fine tuned using an approach based on the concept of a molecular alloy, and it is possible to design a compound for which room temperature falls in the middle of the thermal hysteresis loop.
Journal ArticleDOI
Molecular spin crossover phenomenon: recent achievements and prospects
TL;DR: This critical review discusses recent work in the field of molecule-based spin crossover materials with a special focus on these emerging issues, including chemical synthesis, physical properties and theoretical aspects as well (223 references).
BookDOI
Spin-crossover materials : properties and applications
Abstract: The phenomenon of spin-crossover has a large impact on the physical properties of a solid material, including its colour, magnetic moment, and electrical resistance. Some materials also show a structural phase change during the transition. Several practical applications of spin-crossover materials have been demonstrated including display and memory devices, electrical and electroluminescent devices, and MRI contrast agents. Switchable liquid crystals, nanoparticles, and thin films of spin-crossover materials have also been achieved.
Journal ArticleDOI
Structure:function relationships in molecular spin-crossover complexes
TL;DR: This critical review presents a survey of molecular spin-crossover compounds with good availability of crystallographic data and indicates that changes in molecular shape between the high- and low-spin states can play an important role in determining the existence and the cooperativity of a thermal spin-transition in the solid state.
Related Papers (5)
Spin-Transition Polymers: From Molecular Materials Toward Memory Devices
O. Kahn,C. Jay Martinez +1 more