Reversible thermo-induced spin crossover in a mononuclear cis-dicyanamido-cobalt(ii) complex containing a macrocyclic tetradentate ligand

2020 ◽  
Vol 49 (27) ◽  
pp. 9208-9212 ◽  
Author(s):  
Subrata Ghosh ◽  
Subramani Selvamani ◽  
Sakshi Mehta ◽  
Abhishake Mondal
Keyword(s):  
High Temperature ◽  
Spin Crossover ◽  
Tetradentate Ligand ◽  
Mononuclear Cobalt ◽  
Crossover Behavior ◽  
First Time

For the first time, a mononuclear cobalt(ii) complex with dicyanamide coligands exhibiting reversible spin crossover behavior at high temperature is reported.

High-Temperature Spin Crossover Behavior in a Nitrogen-Rich FeIII-Based System

2013 ◽  
Vol 52 (4) ◽  
pp. 1825-1831 ◽  
Author(s):  
Cyril Cook ◽  
Fatemah Habib ◽  
Tomoko Aharen ◽  
Rodolphe Clérac ◽  
Anguang Hu ◽  
...  
Keyword(s):  
High Temperature ◽  
Spin Crossover ◽  
Crossover Behavior

Asymmetric seven-/eight-step spin-crossover in a three-dimensional Hofmann-type metal–organic framework

2020 ◽  
Vol 7 (8) ◽  
pp. 1685-1690 ◽  
Author(s):  
Yuan-Yuan Peng ◽  
Si-Guo Wu ◽  
Yan-Cong Chen ◽  
Wei Liu ◽  
Guo-Zhang Huang ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Crossover Behavior ◽  
Metal Organic ◽  
First Time ◽  
Organic Framework

An unprecedented hysteretic seven-/eight-step spin-crossover behavior is revealed. Most importantly, a molecular alloy based on a Hofmann-type framework is used as a strategy to explore multi-step spin-crossover materials for the first time.

High temperature anionic Fe(III) spin crossover behavior in a mixed-valence Fe(II)/Fe(III) complex

2021 ◽  
Author(s):  
Zhi-Jian Ouyang ◽  
Xiao-Ying Mo ◽  
Jia-Qi Ye ◽  
Xiao-Xuan Yu ◽  
Shu-Yuan Huang ◽  
...  
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Spin Crossover ◽  
Mixed Valence ◽  
Ion Pair ◽  
Tridentate Ligand ◽  
Crossover Behavior ◽  
Crystal Structural

Two ion-pair Fe(III) complexes of (PPh4)[FeIII(HATD)2]·2H2O (1,H3ATD = azotetrazolyl-2,7-dihydroxynaphthalene) and [FeII(phen)3][FeIII(HATD)2]2·3DMA·3.5H2O (2, phen = 1,10-phenanthroline, DMA = N,N-dimethylformamide) were synthesized employing the tridentate ligand of H3ATD. The crystal structural analysis...

Tuning of Spin Crossover Properties in a Series of Mononuclear Cobalt(II) Complexes Based on Macrocyclic Tetradentate Ligand and Pseudohalide Coligands

2020 ◽  
Author(s):  
Subrata Ghosh ◽  
S Selvamani ◽  
Sujit Kamilya ◽  
Sakshi Mehta ◽  
Abhishake Mondal
Keyword(s):  
Single Crystal ◽  
Spin Crossover ◽  
Variable Temperature ◽  
Tetradentate Ligand ◽  
X Ray ◽  
Tert Butyl ◽  
X Ray Crystallography ◽  
Mononuclear Cobalt

The three mononuclear cobalt(II) complexes, [Co(L)(NCX)2] (L = N,N'-di-tert-butyl-2,11-diaza[3,3](2,6)pyridinophane, and X = S (1), Se (2), and [C(CN)2] (3)), have been synthesized and characterized using variable temperature single-crystal X-ray crystallography,...

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

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

Spin-Crossover Behavior in Cyanide-Bridged Iron(II)−Copper(I) Bimetallic 1−3D Metal−Organic Frameworks

2009 ◽  
Vol 48 (8) ◽  
pp. 3371-3381 ◽  
Author(s):  
Gloria Agustí ◽  
M. Carmen Muñoz ◽  
Ana B. Gaspar ◽  
José A. Real
Keyword(s):  
Spin Crossover ◽  
Metal Organic Frameworks ◽  
Crossover Behavior ◽  
Metal Organic

Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction

2021 ◽  
Author(s):  
Long-Fei Wang ◽  
Bang-Heng Lv ◽  
Feng-Tai Wu ◽  
Guo-Zhang Huang ◽  
Ze-Yu Ruan ◽  
...  
Keyword(s):  
Spin Crossover ◽  
Cycloaddition Reaction ◽  
Crossover Behavior

Xps Analysis of the Sapphire Surface as a Function of High Temperature Vacuum Annealing

1989 ◽  
Vol 159 ◽  
Author(s):  
E.D. Richmond
Keyword(s):  
High Temperature ◽  
Binding Energy ◽  
Photoelectron Spectroscopy ◽  
Vacuum Annealing ◽  
Xps Analysis ◽  
Chemical Changes ◽  
Cleaning Procedure ◽  
Sapphire Surface ◽  
X Ray ◽  
First Time

ABSTRACTFor the first time the (1102) surface of sapphire has been investigated by X-ray photoelectron spectroscopy to ascertain chemical changes resulting from annealing in vacuum at 1300° C and 1450° C. As received substrates had a substantial surface C contaminant. For substrates that were chemically cleaned before inserting them into the MBE system no trace of carbon is detected. A residual flourine contaminant results from the cleaning procedure and is desorbed by the vacuum annealing. Spectra of annealed substrates are compared to the unannealed chemically cleaned substrates. The annealed substrates exhibit 0.4 to 0.5 eV shift to higher binding energy of the Al peak and a 0.3 eV shift to higher binding energy of the O peak. In addition, a 2% depletion of oxygen from the surface occurs.

[FeIII(bztpen)(OCH3)](PF6)2: Stable Methoxide-Iron(III) Complex Exhibiting Spin Crossover Behavior in the Solid State

2010 ◽  
Vol 2010 (35) ◽  
pp. 5563-5567 ◽  
Author(s):  
Norma A. Ortega-Villar ◽  
M. Carmen Muñoz ◽  
José A. Real
Keyword(s):  
Solid State ◽  
Spin Crossover ◽  
Crossover Behavior
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