Results 21 to 30 of about 1,552,843 (326)

Theoretical investigation of structural, electronic, dielectric and optical characteristics of cubic perovskite BaCeO3 [PDF]

Processing and Application of Ceramics, 2021
Structural, electronic and optical parameters of a cubic perovskite BaCeO3 were calculated using FP-LAPW with WIEN2K code. The calculated band structure confirmed the semiconducting behaviour of BaCeO3 with an indirect band gap of 2.33 eV.
Murali Nandigam, Babu Karumanchi Ephraim, Taddesse Paulos Shibeshi, Ramakrishna Angajala, Parajuli Deependra, Pramila Rani Pippala N.V.V.L., Suryanarayana Badireddi, Babu Bonige Kishore, Samatha Kurimella, Veeraiah Valaparla   +9 more
doaj   +1 more source

Harnessing Ionic Interactions and Hydrogen Bonding for Nucleophilic Fluorination

Molecules, 2020
We review recent works for nucleophilic fluorination of organic compounds in which the Coulombic interactions between ionic species and/or hydrogen bonding affect the outcome of the reaction.
Young-Ho Oh, Hyoju Choi, Chanho Park, Dong Wook Kim, Sungyul Lee   +4 more
doaj   +1 more source

Cyclopentadienyl coordination induces unexpected ionic Am−N bonding in an americium bipyridyl complex

Nature Communications, 2022
The coordination environment has a great impact on the electronic structure, bonding and properties of metal complexes. Here the authors report a dinuclear organometallic americium complex that displays unexpectedly ionic Am−N bonding, but enhanced ...
Brian N. Long, María J. Beltrán-Leiva, Cristian Celis-Barros, Joseph M. Sperling, Todd N. Poe, Ryan E. Baumbach, Cory J. Windorff, Thomas E. Albrecht-Schönzart   +7 more
doaj   +1 more source

Dependence of nonthermal metallization kinetics on bond ionicity of compounds [PDF]

Sci Rep 10, 13070 (2020), 2020
It is known that covalently bonded materials undergo nonthermal structure transformations upon ultrafast excitation of an electronic system, whereas metals exhibit phonon hardening. Here we study how ionic bonds react to electronic excitation. Density-functional molecular dynamics predicts that ionic crystals may melt nonthermally, however, into an ...
arxiv   +1 more source

Phase-locked constructing dynamic supramolecular ionic conductive elastomers with superior toughness, autonomous self-healing and recyclability

Nature Communications, 2022
Stretchable ionic conductors are attractive candidates for flexible ionotronics but combining high conductivity with excellent mechanical properties is challenging. Herein, the authors combine these properties in a dynamic supramolecular ionic conductive
Jing Chen, Yiyang Gao, Lei Shi, Wei Yu, Zongjie Sun, Yifan Zhou, Shuang Liu, Heng Mao, Dongyang Zhang, Tongqing Lu, Quan Chen, Demei Yu, Shujiang Ding   +12 more
doaj   +1 more source

Spatial imaging of a novel type of molecular ions [PDF]

Nature 605 (2022) 453-456, 2021
Atoms with a highly excited electron, called Rydberg atoms, can form unusual types of molecular bonds. The bond differs from the well known ionic and covalent bonds not only by its binding mechanism, but also by its bond length ranging up to several micrometres.
arxiv   +1 more source

So Similar, yet so Different: The Case of the Ionic Liquids N-Trimethyl-N (2-methoxyethyl)ammonium Bis (trifluoromethanesulfonyl)imide and N,N-Diethyl-N-methyl-N(2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)imide

Frontiers in Physics, 2022
Two ethoxy containing ionic liquids (ILs) sharing the same anion, N-trimethyl-N (2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)imide (N111(2O1)-TFSI) and N,N-diethyl-N-methyl-N (2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)imide (N122(2O1)-
Oriele Palumbo, Angelo Sarra, Jean-Blaise Brubach, Francesco Trequattrini, Francesco Trequattrini, Adriano Cimini, Sergio Brutti, Sergio Brutti, Giovanni Battista Appetecchi, Elisabetta Simonetti, Giovanna Maresca, Sébastien Fantini, Rongying Lin, Anaïs Falgayrat, Pascale Roy, Annalisa Paolone   +15 more
doaj   +1 more source

Revisiting the Zintl‒Klemm Concept for ALn₂Ag₃Te₅-Type Alkaline-Metal (A) Lanthanide (Ln) Silver Tellurides

Crystals, 2020
Understanding the bonding nature of solids is decisive, as knowledge of the bonding situation for any given material provides valuable information about its structural preferences and physical properties.
Katharina Eickmeier, Kai S. Fries, Fabian C. Gladisch, Richard Dronskowski, Simon Steinberg   +4 more
doaj   +1 more source

Two-Dimensional FTIR as a Tool to Study the Chemical Interactions within Cellulose-Ionic Liquid Solutions

International Journal of Polymer Science, 2015
In this study two-dimensional FTIR analysis was applied to understand the temperature effects on processing cellulose solutions in imidazolium-based ionic liquids.
Kalyani Kathirgamanathan, Warren J. Grigsby, Jafar Al-Hakkak, Neil R. Edmonds   +3 more
doaj   +1 more source

A Critical Look at Linus Pauling’s Influence on the Understanding of Chemical Bonding

Molecules, 2021
The influence of Linus Pauling on the understanding of chemical bonding is critically examined. Pauling deserves credit for presenting a connection between the quantum theoretical description of chemical bonding and Gilbert Lewis’s classical bonding ...
Sudip Pan, Gernot Frenking
doaj   +1 more source