Spin-Crossover Behaviors Based on Intermolecular Interactions for Cobalt(II) Complexes with Long Alkyl Chains

2012 ◽  
Vol 2012 (16) ◽  
pp. 2769-2775 ◽  
Author(s):  
Yasuka Komatsu ◽  
Kazuya Kato ◽  
Yuuki Yamamoto ◽  
Hidenobu Kamihata ◽  
Young Hoon Lee ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Spin Crossover ◽  
Alkyl Chains

Spin-crossover iron(II) long-chain complex with slow spin equilibrium at low temperature

2021 ◽  
Author(s):  
Qi Zhao ◽  
Jin-Peng Xue ◽  
Zhi-Kun Liu ◽  
Zi-Shuo Yao ◽  
Jun Tao
Keyword(s):  
Low Temperature ◽  
Single Crystal ◽  
Spin Crossover ◽  
Chain Complex ◽  
Mononuclear Complex ◽  
X Ray ◽  
Alkyl Chains ◽  
Long Chain

A mononuclear complex with long alkyl chains, [FeII(H2Bpz2)2(C9bpy)] (1; H2Bpz2 = dihydrobis(1-pyrazolyl)borate, C9bpy = 4,4'-dinonyl-2,2'-bipyridine), was synthesized. Single-crystal X-ray crystallographic studies revealed that - and - forms of the complex...

Spin-Crossover Behaviors of Iron(III) Compounds with Strong Intermolecular Interactions

2006 ◽  
Vol 79 (3) ◽  
pp. 442-450 ◽  
Author(s):  
Shinya Hayami ◽  
Soushi Miyazaki ◽  
Masahiko Yamamoto ◽  
Kenji Hiki ◽  
Natsuko Motokawa ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Spin Crossover

Balancing intermolecular interactions by variation of pendent alkyl chains for high performance organic photovoltaics

2017 ◽  
Vol 137 ◽  
pp. 445-455 ◽  
Author(s):  
Joo-weon Ock ◽  
Dongjin Kim ◽  
Hyunjung Kim ◽  
Hyeseung Jung ◽  
Hae Jung Son ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Organic Photovoltaics ◽  
High Performance ◽  
Alkyl Chains

scholarly journals Monte-Carlo simulations of spin-crossover phenomena based on a vibronic Ising-like model with realistic parameters

2015 ◽  
Vol 17 (10) ◽  
pp. 6801-6808 ◽  
Author(s):  
Hong-Zhou Ye ◽  
Chong Sun ◽  
Hong Jiang
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Intermolecular Interactions ◽  
Spin Crossover ◽  
Thermal Hysteresis

A new vibronic Ising-like model considering harmonic stretching-and-bending intermolecular interactions with realistic parameters describes thermal hysteresis in spin-crossover phenomena well.

Synthesis, Structures, and Conformations of Linked Bis-Glyoxylamides Derived from Bis-Acylisatins

2014 ◽  
Vol 67 (9) ◽  
pp. 1270 ◽  
Author(s):  
Venty Suryanti ◽  
Glenn C. Condie ◽  
Mohan Bhadbhade ◽  
Roger Bishop ◽  
David StC. Black ◽  
...  
Keyword(s):  
Amino Acid ◽  
Crystal Structures ◽  
Intermolecular Interactions ◽  
Ring Opening ◽  
Alkyl Esters ◽  
Alkyl Chains

A series of bis-glyoxylamides possessing hydrophobic alkyl chains was successfully synthesised by ring opening of bis-acylisatins with amines or amino acid alkyl esters. The crystal structures revealed the interplay of intra- and intermolecular interactions (NH···O and C=O···C=O interactions) and the conformations of these long molecules.

scholarly journals Self-Assembly Properties of Amphiphilic Iron(III) Spin Crossover Complexes in Water and at the Air–Water Interface

2018 ◽  
Vol 4 (4) ◽  
pp. 49 ◽  
Author(s):  
Paulo N. Martinho ◽  
Irina A. Kühne ◽  
Brendan Gildea ◽  
George McKerr ◽  
Barry O’Hagan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Self Assembly ◽  
Spin Crossover ◽  
Water Soluble ◽  
Water Interface ◽  
Nanoparticle Formation ◽  
Alkyl Chains ◽  
Transmission Electron ◽  
Air Water Interface ◽  
Magnetic Profile

The assembly properties of three known spin crossover iron(III) complexes 1–3, at the air–water interface, are reported. All three complexes are amphiphiles, each bearing a pair of Cn alkyl chains on the polyamino Schiff base sal2trien ligand (n = 6, 12, or 18). Complex 1 is water-soluble but complexes 2 and 3 form Langmuir films, and attempts were made to transfer the film of the C18 complex 3 to a glass surface. The nature of the assembly of more concentrated solutions of 3 in water was investigated by light scattering, cryo-SEM (scanning electron microscopy), and TEM (transmission electron microscopy), all of which indicated nanoparticle formation. Lyophilization of the assembly of complex 3 in water yielded a powder with a markedly different magnetic profile from the powder recovered from the initial synthesis, notably, the spin crossover was almost completely quenched, and the thermal behavior was predominantly low spin, suggesting that nanoparticle formation traps the system in one spin state.

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