Stimuli-responsive metallo-supramolecular polymer films: design, synthesis and device fabrication

2014 ◽  
Vol 2 (44) ◽  
pp. 9331-9341 ◽  
Author(s):  
Masayoshi Higuchi
Keyword(s):  
Polymer Films ◽  
Chemical Properties ◽  
Device Fabrication ◽  
Supramolecular Polymer ◽  
Stimuli Responsive ◽  
Design Synthesis ◽  
Metal Interactions ◽  
Metal Metal ◽  
Metal Ligand

Based on the metal–ligand or metal–metal interactions, metallo-supramolecular polymer films showed stimuli-responsive electro- and photo-chemical properties such as electrochromism.

1.3-Diondioxime und ihre Metall(II)-Komplexe mit den Ionen Nickel(II), Palladium(II) und Platin(II) / 1,3-Dionedioximes and their Metal(II) Complexes with Ions Niekel(II), Palladium(II) and Platinum(II)

1978 ◽  
Vol 33 (4) ◽  
pp. 399-402 ◽  
Author(s):  
N. Gottstein ◽  
H. J. Keller
Keyword(s):  
Intermolecular Interaction ◽  
Alcoholic Solution ◽  
Metal Interactions ◽  
Metal Metal ◽  
Solid Compounds ◽  
Metal Ligand

Several alkyl and aryl substituted 1,3-dionedioximes, like acetylacetonedioxime, have been reacted with nickel(II), palladium(II) and platinum(II) in aqueous or alcoholic solution. Two kinds of complexes were obtained:(i) those with stoichiometry metal: ligand = 1 : 1 and(ii) bis(l,3-dionedioximato)metal(II) complexes.None of the isolated solid compounds showed any sign of appreciable intermolecular metal metal interactions. An attempt to enhance intermolecular interaction by oxidizing the compounds with iodine lead to the destruction of all of the complexes.

A stimuli-responsive orthogonal supramolecular polymer network formed by metal–ligand and host–guest interactions

2014 ◽  
Vol 50 (6) ◽  
pp. 722-724 ◽  
Author(s):  
Jiayi Zhan ◽  
Qi Li ◽  
Qiuyue Hu ◽  
Qianqian Wu ◽  
Cunmin Li ◽  
...  
Keyword(s):  
Polymer Network ◽  
Supramolecular Polymer ◽  
Stimuli Responsive ◽  
Metal Ligand

Polymer Metal-Organic Cage Gels Based on Cu24L24 Cuboctahedra: Design, Synthesis, and Additive Manufacturing Enabled by Three-State Photoswitching

2019 ◽  
Author(s):  
Nathan J. Oldenhuis ◽  
Peter Qin ◽  
Shu Wang ◽  
Hong-Zhou Ye ◽  
Eric Alt ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Chemical Properties ◽  
Polymer Gel ◽  
Stimuli Responsive ◽  
Design Synthesis ◽  
Responsive Materials ◽  
Switching Phenomenon ◽  
Material State ◽  
Polymer Metal ◽  
Metal Organic

This manuscript presents a novel polyMOC network that can reversibly switch between three distinct states of mechanical and chemical properties, significantly extending the boundaries of stimuli-responsive materials. This triple switching phenomenon is enabled by a unique photoreduction mechanism that leverages Cu<sub>24</sub>L<sub>24</sub> self-assembled metal-organic cages (MOCs) embedded in an elastic polymer gel. The properties of each material state can be used in a cooperative fashion to achieve advanced functions such as network toughening, metallic patterning, and additive manufacturing<br>

Mono- and Bi-nuclear Complexes of the Doubly Bidentate, Bridging Ligand 4,6-Di(2-pyridyl)pyrimidine.

1998 ◽  
Vol 51 (5) ◽  
pp. 371 ◽  
Author(s):  
Ian G. Phillips ◽  
Peter J. Steel
Keyword(s):  
Transition Metal Complexes ◽  
Binuclear Complexes ◽  
Two Dimensional ◽  
Lumo Energy ◽  
Metal Interactions ◽  
Bridging Ligand ◽  
Energy Gaps ◽  
Metal Metal ◽  
Homo Lumo ◽  
Metal Ligand

Thirteen mononuclear, homobinuclear and heterobinuclear transition metal complexes of 4,6-di(2- pyridyl)pyrimidine have been prepared. Assignments of the 1H n.m.r. spectra of the molybdenum(0) and ruthenium(II) complexes were achieved by a combination of one- and two-dimensional n.m.r. techniques, especially 1D-TOCSY. For the ruthenium complexes, electronic absorption spectroscopy and cyclic voltammetry were used to probe the nature of the metal{ligand and, for the binuclear complexes, metal-metal interactions. The complexes have low HOMO−LUMO energy gaps. Meta-metal interactions are shown to be of similar magnitude to those in complexes of the better-studied ligands 2,2′-bipyrimidine and 2,3-di(2-pyridyl)pyrazine.

Sensitive Mechanocontrolled Luminescence in Cross-Linked Polymer Films

2019 ◽  
Author(s):  
Ayumu Karimata ◽  
Pradnya Patil ◽  
Eugene Khaskin ◽  
Sébastien Lapointe ◽  
robert fayzullin ◽  
...  
Keyword(s):  
Mechanical Stress ◽  
Polymer Films ◽  
Soft Matter ◽  
Small Strain ◽  
Visual Methods ◽  
Photoluminescence Intensity ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Highly Sensitive ◽  
Mechanical Stretching

Direct translation of mechanical force into changes in chemical behavior on a molecular level has important implication not only for the fundamental understanding of mechanochemical processes, but also for the development of new stimuli-responsive materials. In particular, detection of mechanical stress in polymers via non-destructive methods is important in order to prevent material failure and to study the mechanical properties of soft matter. Herein, we report that highly sensitive changes in photoluminescence intensity can be observed in response to the mechanical stretching of cross-linked polymer films when using stable, (pyridinophane)Cu-based dynamic mechanophores. Upon stretching, the luminescence intensity increases in a fast and reversible manner even at small strain (< 50%) and applied stress (< 0.1 MPa) values. Such sensitivity is unprecedented when compared to previously reported systems based on organic mechanophores. The system also allows for the detection of weak mechanical stress by spectroscopic measurements or by direct visual methods.<br>

scholarly journals Heterobimetallic lanthanide‐coinage metal compounds featuring possible metal‐metal interactions in the exited state

2021 ◽  
Author(s):  
Peter Werner Roesky ◽  
Milena Dahlen ◽  
Niklas Reinfandt ◽  
Chengyu Jin ◽  
Michael T. Gamer ◽  
...  
Keyword(s):  
Metal Compounds ◽  
Coinage Metal ◽  
Metal Interactions ◽  
Metal Metal

scholarly journals Stimuli responsive dynamic transformations in supramolecular gels

2021 ◽  
Author(s):  
Santanu Panja ◽  
Dave J. Adams
Keyword(s):  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Stimuli Responsive ◽  
Dynamic Changes ◽  
Supramolecular Gels ◽  
Self Assembled ◽  
Physical And Chemical ◽  
And Chemical Properties

Stimuli responsive dynamic changes in the networks of self-assembled gels result in an alteration of physical and chemical properties of the gel with time.

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