Abrupt spin transition in a modified-terpyridine cobalt(ii) complex with a highly-distorted [CoN6] core

2018 ◽  
Vol 47 (39) ◽  
pp. 13809-13814 ◽  
Author(s):  
Manabu Nakaya ◽  
Ryo Ohtani ◽  
Jong Won Shin ◽  
Masaaki Nakamura ◽  
Leonard F. Lindoy ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Spin Transition ◽  
Transition Behavior ◽  
Crossover Behavior

The cobalt(ii) complex [Co(Naph-C2-terpy)2](BF2)2 (1) incorporating a highly distorted [CoN6] core was found to exhibit abrupt spin transition behavior, unlike solvated 1·2MeOH, which showed gradual spin crossover behavior.

scholarly journals Tuning the spin crossover behavior of the polyanion [(H2O)6Fe3(μ-L)6]6–: the case of the cesium salt

2018 ◽  
Vol 47 (34) ◽  
pp. 11895-11902 ◽  
Author(s):  
Andrea Moneo-Corcuera ◽  
David Nieto-Castro ◽  
Cristina Sáenz de Pipaón ◽  
Verónica Gómez ◽  
Pilar Maldonado-Illescas ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Room Temperature ◽  
Spin Crossover ◽  
Spin Transition ◽  
Abrupt Transition ◽  
Cesium Salt ◽  
Crossover Behavior ◽  
Wide Hysteresis

Cation exchange transforms the gradual spin transition of the trimer [(H2O)6Fe3(μ-L)6]6– into an abrupt transition with a wide hysteresis above room temperature.

A ladder-type iron(ii) coordination polymer with enhanced spin-crossover behavior

2017 ◽  
Vol 4 (6) ◽  
pp. 921-926 ◽  
Author(s):  
Zheng Yan ◽  
Long-Feng Zhu ◽  
Lian-Wen Zhu ◽  
Yan Meng ◽  
Md. Najbul Hoque ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Room Temperature ◽  
Spin Crossover ◽  
Spin Transition ◽  
1D Coordination Polymer ◽  
Crossover Behavior

A ladder-type 1D coordination polymer with enhanced spin-crossover behaviour is reported. It showed an abrupt spin transition above room temperature with a 3 K hysteresis (T1/2↓ = 335 K andT1/2↑ = 338 K).

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.

Effect of metal dilution on the spin-crossover behavior in [FexM1-x(phen)2(NCS)2] (M = Mn, Co, Ni, Zn)

1982 ◽  
Vol 21 (9) ◽  
pp. 3429-3433 ◽  
Author(s):  
P. Ganguli ◽  
P. Guetlich ◽  
E. W. Mueller
Keyword(s):  
Spin Crossover ◽  
Crossover 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.

Modification of Spin Crossover Behavior through Solvent Assisted Formation and Solvent Inclusion in a Triply Interpenetrating Three-Dimensional Network

2007 ◽  
Vol 46 (10) ◽  
pp. 4220-4229 ◽  
Author(s):  
Matthias Bartel ◽  
Alina Absmeier ◽  
Guy N. L. Jameson ◽  
Franz Werner ◽  
Kenichi Kato ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Three Dimensional ◽  
Dimensional Network ◽  
Crossover Behavior
Sign in / Sign up

Export Citation Format

Share Document