Results 81 to 90 of about 2,881,033 (356)

Poly[[bis(dimethylformamide)[μ7-5,5′-(methylenedioxy)diisophthalato]dizinc] dimethylformamide monosolvate]

Acta Crystallographica Section E, 2011
In the crystal structure of the title coordination polymer, {[Zn2(C17H8O10)(C3H7NO)2]·C3H7NO}n, the molecular building block (MBB), viz. {Zn2(CO2)4(C3H7NO)2}, comprises two zinc atoms, each bridged by three carboxylate groups. These two Zn atoms
Hong He, Wen-Ge Qiu, Chuan-Qiang Li
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Ion Coordination and Transport in Magnesium Polymer Electrolytes Based on Polyester-co-Polycarbonate

Energy Material Advances, 2021
Magnesium-ion-conducting solid polymer electrolytes have been studied for rechargeable Mg metal batteries, one of the beyond-Li-ion systems. In this paper, magnesium polymer electrolytes with magnesium bis(trifluoromethane)sulfonimide (Mg(TFSI)2) salt in
Bumjun Park, Rassmus Andersson, Sarah G. Pate, Jiacheng Liu, Casey P. O’Brien, Guiomar Hernández, Jonas Mindemark, Jennifer L. Schaefer   +7 more
doaj   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

A two-dimensional CdII coordination polymer: poly[diaqua[μ3-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato-κ5O2:O3:O3,N4,N5]cadmium]

Acta Crystallographica Section E: Crystallographic Communications, 2016
The reaction of 5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylic acid with cadmium dichloride leads to the formation of the title two-dimensional coordination polymer, [Cd(C16H8N4O4)(H2O)2]n.
Monserrat Alfonso, Helen Stoeckli-Evans
doaj   +1 more source

Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]

, 2010
Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core  

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Carboxylated dithiafulvenes and tetrathiafulvalene vinylogues: synthesis, electronic properties, and complexation with zinc ions

Beilstein Journal of Organic Chemistry, 2015
A class of carboxyl and carboxylate ester-substituted dithiafulvene (DTF) derivatives and tetrathiafulvalene vinylogues (TTFVs) has been synthesized and their electronic and electrochemical redox properties were characterized by UV–vis spectroscopic and ...
Yunfei Wang, Yuming Zhao
doaj   +1 more source

The one-dimensional coordination polymer poly[tetrakis[(4-chlorophenyl)methanaminium] [cadmate-μ-cyclohexaphosphorato]]

Acta Crystallographica Section E, 2011
Cyclohexaphosphoric acid (P6O18H6) reacts with cadmium carbonate and 4-chlorobenzylamine (CBA) to give the mononuclear title complex, (C7H9ClN)4[Cd(P6O18)]n, in which the CdII atom, lying on an inversion centre, has an octahedral coordination built of ...
Sonia Abid, S. Salem Al-Deyab, Mohamed Rzaigui   +2 more
doaj   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source