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An NCN-pincer ligand dysprosium single-ion magnet showing magnetic relaxation via the second excited state
Single-molecule magnets are compounds that exhibit magnetic bistability purely of molecular origin. The control of anisotropy and suppression of quantum tunneling to obtain a comprehensive picture of the relaxation pathway manifold, is of utmost importance with the ultimate goal of slowing the relaxation dynamics within single-molecule magnets to facilitate their potential applications. Combined...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11923.html |
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Solvent dependent photophysical properties and near-infrared solid-state excited stateintramolecular proton transfer (ESIPT) fluorescence of 2,4,6-tris- benzothiazolylphenol.
A new excited-state intramolecular proton transfer (ESIPT) fluorophore, 2,4,6-trisbenzothiazolylphenol (4), was synthesized and its photophysical properties were studied with steady state absorption and emission spectroscopy as well as time-dependent density functional theory calculation. It was found that 4 showed solvent dependent absorption and fluorescence emission. In the nonpolar solvents,...
http://www.polymer.cnt//ss/zhangxuan/publicationsshow_10790.html |
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Naked-eye detection of C1–C4 alcohols based on ground-state intramolecular proton transfer
Previous reports of fluorescent sensors for alcohols based on charge-transfer character of their excited state are based on mono-, di-, and tetra-phosphonate cavitands, which are capable of selecting analytes through shape/size selection and various specific H-bonding, CH-pi, and cation dipole interactions. To contrast, color changes based on absorption properties of the ground state are more suit...
http://www.polymer.cnt//ss/yumm/publicationsshow_10788.html |
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Amplified excited state intramolecular proton transfer (ESIPT) fluorescence of butterfly-shaped bis-2,6-dibenzothiazolylphenol
A butterfly-shaped benzothiazole derivative, bis-2,6-dibenzothiazolylphenol (2), was synthesized via 4-methylene bridging two 2,6-dibenzothiazolylphenol (1) molecules, and the excited-state intramolecular proton transfer (ESIPT) fluorescence of 1 and 2 were comparably investigated by steady-state spectroscopic experiments with the aid of theoretical simulations for structure and energy. It was fou...
http://www.polymer.cnt//ss/zhangxuan/publicationsshow_10766.html |
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In situ synthesis and characterization of ZnS/epoxy nanocomposites via gas-liquid state reaction method
In this article, the ZnS/epoxy nanocomposites were successfully prepared by the reaction of zinc acetate and H2S gas via a simple step. Epoxy resin acted as the matrix for the formation of ZnS nanoparticles (10–20 nm) in the reaction system and kept them from agglomerating. The structure, composition, and mechanical properties of the resultant products were successfully investigated by powder X-r...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10585.html |
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Conformations and Intermolecular Interactions in Cellulose/Silk Fibroin Blend Films: A Solid-State NMR Perspective
Fabricating
materials with excellent mechanical performance from the natural renewable and
degradable biopolymers has drawn significant attention in recent decades due to
the environmental concerns and energy crisis. As two of the most promising
substitutes of synthetic polymers, silk fibroin (SF) and cellulose, have been
widely used in the field of textile, biomedicine, biotechnology, et...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_10459.html |
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Effect of Polymers and Media Type on Extending the Dissolution of Amorphous Pioglitazone and Inhibiting the Recrystallization from a Supersaturated State
Amorphous forms of crystalline drug are widely utilized for bioavailability enhancement of low solubility drugs in the pharmaceutical industry. Polymers have been found to be effective crystallization inhibitors for amorphous forms in solid states during storage or in liquid states during dissolution process. The dissolution and crystallization behaviors of these amorphous forms in the presence or...
http://www.polymer.cnt//ss/shinianqiu/publicationsshow_10310.html |
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Polyhedral oligosilsesquioxane containing poly(methyl methacrylate) perylenebisimide microspheres with high solid state emission
Polyhedral-oligosilsesquioxane containing poly(methyl methacrylate) perylenebisimide microspheres with high solid state emission
http://www.polymer.cnt//ss/renxiangkui/publicationsshow_9954.html |
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Molecular Origin of the Shape Memory Properties of Heat-shrink Crosslinked Polymers as Revealed by Solid-state NMR
Understanding the shape memory properties of heat-shrink polymers (HSPs)
at the molecular level is crucial for the design and synthesis of advanced HSP
materials. Herein, we employed a
variety of in situ variable-temperature (VT) solid-state nuclear magnetic
resonance (NMR) techniques, in combination with other methods, to investigate
the evolution of the individual components of a poly(ethyl...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_9768.html |
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(ECS Solid State Lett.) Microwave Assisted Formation of Magnetic Core-Shell Carbon Nanostructure
This letter describes a facile high temperature microwave assisted process to form the magnetic core-shell carbon nanostructure from polyaniline (PANI)-magnetite (Fe3O4) nanocomposites. The amorphous combined with graphitized carbon shell is observed by the transmission electron microscopy (TEM). The crystalline metallic iron, cementite, Fe3O4 and iron oxide (Fe2O3) are observed in the magnetic ...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9635.html |
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