Results 51 to 60 of about 272 (215)

3-[(E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]-4-hydroxy-2H-chromen-2-one

Acta Crystallographica Section E, 2010
In the title compound, C18H10Cl2O4, the chromen-2-one ring system is almost planar [maximum deviation = 0.028 (1) Å] and is inclined at an angle of 16.35 (4)° with respect to the benzene ring.
Mohammad Asad, Chuan-Wei Oo, Hasnah Osman, Ching Kheng Quah, Hoong-Kun Fun   +4 more
doaj   +1 more source

On symmetrical O-H-O hydrogen bonds

Journal de Physique, 1964
Several hydrogen bonds with O-H-O bond lengths of about 2.4 Å are now known. Some of these have been examined well enough by neutron diffraction and other means to know with reasonable certainty that they are symmetrical hydrogen bonds, with either a single or a symmetrical double distribution peak.
openaire   +2 more sources

Influence of the Environment on Proton Transfer in Symmetrical Hydrogen Bonds

Zeitschrift für Naturforschung A, 1973
Symmetrical hydrogen bonds with a double minimum potential well or a largely flat potential are extremely easily polarisable, which leads to strong mutual interactions of such bonds and to interactions of the bonds with their environment. Particularly in the range of the rearrangement frequencies of the medium, the interactions depend to a marked ...
E. G. Weidemann, G. Zundel
openaire   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

A long symmetric N...H...N hydrogen bond in bis(4-aminopyridinium)(1+) azide(1−): redetermination from the original data

Acta Crystallographica Section E: Crystallographic Communications, 2017
The structure of the title molecular salt, C10H13N4+·N3−, has been redetermined from the data published by Qian & Huang [Acta Cryst. (2010), E66, o3086; refcode WACMIY (Groom et al., 2016)].
Jan Fábry
doaj   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

catena-Poly[[lithium-μ2-(dihydrogen pyrazine-2,3,5,6-tetracarboxylato)-κ6O2,N1,O6;O3,N4,O5-lithium-di-μ-aqua-κ4O:O] 2.5-hydrate]

Acta Crystallographica Section E, 2014
The title coordination polymer, {[Li2(C8H2N2O8)(H2O)2]·2.5H2O}n, is built up from molecular ribbons propagating in the c-axis direction of the orthorhombic unit cell; the ligand bridges two Li+ ions using both its N,O,O′-bonding sites and adjacent Li ...
Wojciech Starosta, Janusz Leciejewicz
doaj   +1 more source

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

Advanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi, Gilyong Shin, Hoyeon Lee, Eun Jae Nam, Byeong Jun So, Sungryul Yun, Fu‐Kuo Chang, Jei Gyeong Jeon, Tae June Kang   +8 more
wiley   +1 more source

Quantum Hydrogen-Bond Symmetrization and High-Temperature Superconductivity in Hydrogen Sulfide

, 2015
Hydrogen compounds are peculiar as the quantum nature of the proton can crucially affect their structural and physical properties. A remarkable example are the high-pressure phases of H$_2$O, where quantum proton fluctuations favor the symmetrization of the H bond and lower by 30 GPa the boundary between the asymmetric structure and the symmetric one ...
Errea, Ion, Calandra, Matteo, Pickard, Chris J., Nelson, Joseph, Needs, Richard J., Li, Yinwei, Liu, Hanyu, Zhang, Yunwei, Ma, Yanming, Mauri, Francesco   +9 more
openaire   +2 more sources

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source