Results 81 to 90 of about 299,162 (292)

Hand-holding and releasing between the anion and cation to change their macroscopic behavior in water

Green Energy & Environment, 2019
Despite the similarity of ionic liquid and zwitterion, their some properties such as conductivity and hydrophobicity are different. Here we developed a novel phosphonium salt having a dynamic covalent bond between anion and cation, enabling reversible ...
Kosuke Kuroda, Yumiko Shimada, Kenji Takahashi   +2 more
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Research progress in dynamic covalent thermosets and their composites based on dynamic covalent bonds

Cailiao gongcheng
Fiber reinforced thermosetting composites exhibit high strength-weight ratio， high modulus-weight ratio， and good thermostability， and have been applied in many high-tech areas such as aerospace.
WU Jianqiao, ZHANG Xueli, ZHANG Yan, YANG Luyao, WANG Zixuan   +4 more
doaj   +1 more source

RNA-Peptide Conjugation through an Efficient Covalent Bond Formation

Applied Sciences, 2020
Many methods for modification of an oligonucleotide with a peptide have been developed to apply for the therapeutic and diagnostic applications or for the assembly of nanostructure.
Shun Nakano, Taiki Seko, Zhengxiao Zhang, Takashi Morii   +3 more
doaj   +1 more source

Poly(oxime-ester) Vitrimers with Catalyst-Free Bond Exchange. [PDF]

, 2019
Vitrimers are network polymers that undergo associative bond exchange reactions in the condensed phase above a threshold temperature, dictated by the exchangeable bonds comprising the vitrimer.
He, Changfei, Helms, Brett A, Russell, Thomas P, Shi, Shaowei, Wang, Dong   +4 more
core  

Symmetry crossover and excitation thresholds at the neutral-ionic transition of the modified Hubbard model

, 2001
Exact ground states, charge densities and excitation energies are found using valence bond methods for N-site modified Hubbard models with uniform spacing. At the neutral-ionic transition (NIT), the ground state has a symmetry crossover in 4n, 4n+2 rings
Anusooya-Pati, Y., Painelli, A., Soos, Z. G.   +2 more
core   +1 more source

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Theoretical Study of Cubic Structures Based on Fullerene Carbon Clusters: C$_{28}$C and (C$_{28})_{2}$

, 1995
We study a new hypothetical form of solid carbon \csc, with a unit cell which is composed of the \cs \ fullerene cluster and an additional single carbon atom arranged in the zincblende structure.
A. Antonelli, B. I. Dunlap, D. Bylander, E. Kaxiras, Efthimios Kaxiras, F. D. Murnaghan, G. Bachelet, H. J. Monkhorst, H. Kroto, J. Perdew, J. Perdew, K. Jackson, L. Kleinman, L. Sham, Linda M. Zeger, M. Hybertsen, M. Pederson, O. L. Anderson, O.D. Häberlen, P. Hohenberg, R. Car, R. Godby, T. Guo, T. Guo, W. Kohn, Yu-Min Juan   +25 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source