Results 91 to 100 of about 47,366 (291)

Substituent effects on radical cations of halogenated biphenyl compounds: A density functional theory and time-resolved resonance Raman study

open access: yes, 2001
We report density functional theory calculations to obtain the optimized structures for the ground state neutral molecule and radical cations for twelve substituted biphenyl compounds.
Lee, CW   +3 more
core   +1 more source

High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells

open access: yesAdvanced Science, EarlyView.
High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao   +7 more
wiley   +1 more source

Laboratory and human studies on polychlorinated biphenyls (PCBs) and related compounds. [PDF]

open access: yesEnvironmental Health Perspectives, 1985
Similar qualitative toxic effects have been observed in animals for a class of halogenated aromatic compounds, which include the halogenated biphenyls, naphthalenes, dibenzodioxins, and dibenzofurans. All of these compounds are lipid soluble and persist in the environment and in mammals. The polybrominated biphenyls (PBBs) are the most persistent. They
openaire   +2 more sources

New Supramolecular Liquid Crystal Structures in Wedge-Shaped Molecules [PDF]

open access: yes, 2012
The main subject of this thesis is structure determination of self-assembled wedge-shaped liquid crystal-forming molecules. The main part of the work involves 3,4,5-trialkoxygallate alkali metal salts.
Chaiprapa, Jitrin
core  

Beyond Electrostatics: Anion‐π+ Orbital Hybridization Underpins High‐Performance Chloride Storage in Poly(arylamine) Organic Cathodes

open access: yesAdvanced Science, EarlyView.
The fundamental nature of anion storage in p‐type organic cathodes is elucidated using rigid poly(arylamine) frameworks. This study reveals a hybrid covalent‐ionic mechanism for anion‐π+ interactions, driven by synergistic orbital hybridization and electrostatic attraction.
Tiantian She   +7 more
wiley   +1 more source

Biphenyl Modulates the Expression and Function of Respiratory Oxidases in the Polychlorinated-Biphenyls Degrader Pseudomonas pseudoalcaligenes KF707

open access: yesFrontiers in Microbiology, 2017
Pseudomonas pseudoalcaligenes KF707 is a soil bacterium which is known for its capacity to aerobically degrade harmful organic compounds such as polychlorinated biphenyls (PCBs) using biphenyl as co-metabolite.
Federica Sandri   +6 more
doaj   +1 more source

From Defense Executor to Engineering Target: Harnessing Lignin for Crop Resistance

open access: yesAdvanced Science, EarlyView.
Lignin serves as both a physical and chemical executor of broad‐spectrum plant immunity. This review systematically summarizes classical and recent advances in lignin‐mediated immunity, outlines the multifaceted regulatory modules controlling lignification under biotic stress, discusses key physiological and biochemical mechanisms behind lignin‐based ...
Yanwen Yu   +6 more
wiley   +1 more source

Health Effect of Polychlorinated Biphenyls and Related Compounds

open access: yesJournal of Health Science, 2003
Polychlorinated biphenyls (PCBs) and dioxins have polluted the environment for about 50 years and parts of them have transferred to human being through food chain. Humans are already contaminated with chlorinated compounds at relatively high levels.
openaire   +2 more sources

Calorimetric study on two biphenyl liquid crystals

open access: yes, 2004
The molar heat capacities of the two biphenyl liquid crystals, 3BmFF and 3BmFFXF3, with a purity of 99.7 mol% have been precisely measured by a fully automated precision adiabatic calorimeter in the temperature range between T = 80 and 350 K.
Zhang, T   +5 more
core   +1 more source

Biphenyl and biphenyl ether quinolizidine N -oxide alkaloids from lagerstroemia indica L

open access: yes, 2020
Four new biphenyl and biphenyl ether quinolizidine N-oxide alkaloids, 5-epi-dihydrolyfoline N-oxide (1), decamine N-oxide (2), lagerstroemine N-oxide (3), and lagerine N-oxide (4), were isolated from the aerial parts of Lagerstroemia indica, and their ...
윤의중
core   +1 more source

Home - About - Disclaimer - Privacy