Phase Transition Triggered by Ordering of Unique Pendulum-Like Motions in a Supramolecular Complex: Potassium Hydrogen Bis(dichloroacetate)-18-Crown-6

2013 ◽  
Vol 13 (6) ◽  
pp. 2675-2679 ◽  
Author(s):  
Shigeng Li ◽  
Junhua Luo ◽  
Zhihua Sun ◽  
Shuquan Zhang ◽  
Lina Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Supramolecular Complex ◽  
Potassium Hydrogen

An organometallic half-sandwich supramolecular complex {K(18-Crown-6)(ηn-C6H5B(C6H5)3)} (n = 1–6) exhibiting a reversible breaking-symmetry phase transition and switchable dielectric behaviour

2018 ◽  
Vol 47 (47) ◽  
pp. 16835-16839 ◽  
Author(s):  
Guo-Jun Yuan ◽  
Dong-Sheng Shao ◽  
Zhi-Yuan Yao ◽  
Wen-Long Liu ◽  
Xiao-Ming Ren
Keyword(s):  
Phase Transition ◽  
Sandwich Structure ◽  
Dielectric Behavior ◽  
Supramolecular Complex ◽  
Dielectric Behaviour ◽  
Symmetry Phase ◽  
Half Sandwich ◽  
Breaking Symmetry

An organometallic supramolecular crystal of {K(18-crown-6)(ηn-C6H5B(C6H5)3)} (n = 1–6) has a half-sandwich structure and exhibits a reversible breaking-symmetry phase transition and switchable dielectric behavior.

Electrical and thermal evidence for a phase transition in potassium hydrogen tartrate

1995 ◽  
Vol 72 (1) ◽  
pp. 91-99 ◽  
Author(s):  
M. M. Abdel-kader ◽  
Z. H. El-tanahy ◽  
M. Abu Taleb ◽  
A. Abousehl ◽  
A. El-sharkawy
Keyword(s):  
Phase Transition ◽  
Potassium Hydrogen ◽  
Potassium Hydrogen Tartrate

Synthesis, structural phase transition, and characterization of potassium hydrogen bis-dichloroacetate

2018 ◽  
Vol 29 (6) ◽  
pp. 1739-1744 ◽  
Author(s):  
Shi-Geng Li ◽  
Bai-Hua Long ◽  
Ru-Tie Liu ◽  
Xiang Xiong
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Potassium Hydrogen

Solid solutions of flexible host−guest supramolecules for tuning molecular motion and phase transition

2021 ◽  
Author(s):  
Xunhui Zhou ◽  
Ying Zeng ◽  
Shaobin Tang ◽  
Zi-Ru Yu ◽  
Li-Ming Cao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solutions ◽  
Molecular Motion ◽  
Supramolecular Complex ◽  
Individual Molecule

By utilizing integrated supramolecular complex rather than individual molecule as deformable and elastic substitutional component, we demonstrate an elegant example of how two related yet non-isostructural crystalline host−guest compounds can...

Study on the phase transition in potassium hydrogen sulphate crystals

1988 ◽  
Vol 132 ◽  
pp. 1-5 ◽  
Author(s):  
S.H. Kandil ◽  
M.E. Kassem ◽  
N.Abd El-Rehim ◽  
A.M. Bayoumi
Keyword(s):  
Phase Transition ◽  
Potassium Hydrogen ◽  
Hydrogen Sulphate

A high temperature reversible phase transition in a supramolecular complex of 15-crown-5 with tetraphenylboron sodium

2018 ◽  
Vol 42 (18) ◽  
pp. 14943-14948 ◽  
Author(s):  
Guo-Jun Yuan ◽  
Shao-Xian Liu ◽  
Zheng-Fang Tian ◽  
Xiao-Ming Ren
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Thermal Hysteresis ◽  
Supramolecular Complex ◽  
Reversible Phase Transition ◽  
Sodium Tetraphenylboron ◽  
Reversible Phase

High temperature (391 K) reversible phase transition and large thermal hysteresis (19 K) was observed in 15-crown-5 clathrates: [Na(15-crown-5)][BPh4] (15-crown-5 = 1,4,7,10,13-pentaoxacyclopentadecane, NaBPh4 = sodium tetraphenylboron).

Photocontrollable volume phase transition of an azobenzene functionalized microgel and its supramolecular complex

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 84263-84268 ◽  
Author(s):  
Liqiang Zhu ◽  
Chuanzhuang Zhao ◽  
Jiawei Zhang ◽  
Dirong Gong
Keyword(s):  
Phase Transition ◽  
Acrylic Acid ◽  
Supramolecular Complex ◽  
Volume Phase Transition ◽  
Volume Phase

A novel photo-responsive microgel (Azo-MG) was successfully prepared by grafting azobenzene moieties onto a poly(N-isopropylacrylamide-co-acrylic acid) microgel.

Microstructure of laser-irradiated, conducting Kapton polyimide

1995 ◽  
Vol 53 ◽  
pp. 502-503
Author(s):  
D. L. Callahan ◽  
Z. Ball ◽  
H. M. Phillips ◽  
R. Sauerbrey
Keyword(s):  
Electron Microscopy ◽  
Phase Transition ◽  
Transmission Electron Microscopy ◽  
Cross Section ◽  
Film Surface ◽  
Cross Sectional ◽  
General Utility ◽  
Transmission Electron ◽  
Considerable Debate ◽  
Potential Applications

Ultraviolet laser-irradiation can be used to induce an insulator-to-conductor phase transition on the surface of Kapton polyimide. Such structures have potential applications as resistors or conductors for VLSI applications as well as general utility electrodes. Although the percolative nature of the phase transformation has been well-established, there has been little definitive work on the mechanism or extent of transformation. In particular, there has been considerable debate about whether or not the transition is primarily photothermal in nature, as we propose, or photochemical. In this study, cross-sectional optical microscopy and transmission electron microscopy are utilized to characterize the nature of microstructural changes associated with the laser-induced pyrolysis of polyimide.Laser-modified polyimide samples initially 12 μm thick were prepared in cross-section by standard ultramicrotomy. Resulting contraction in parallel to the film surface has led to distortions in apparent magnification. The scale bars shown are calibrated for the direction normal to the film surface only.

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