Results 51 to 60 of about 46,992 (252)

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

Angewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +2 more sources

Engineering BN‐Doped Open‐Shell Polycyclic Hydrocarbons for Enhanced Photothermal Conversion and Therapy

Angewandte Chemie, EarlyView.
Two novel bonded BN‐doped polycyclic hydrocarbons BN‐Dira and BN‐Tetra with open‐shell character were rationally designed and synthesized. Their molecular structures were unambiguously confirmed by crystallographic analysis. Facilitated by their intense absorption in the NIR region, high PCE (83.6%) and good photothermal stability, BN‐Dira and BN‐Tetra
Peiyun Zeng, Ziqi Zhuang, Huan Luo, Yubin Fu, Peiyu Wang, Yating Zheng, Gang Liu, Junzhi Liu   +7 more
wiley   +2 more sources

COMPUTER SIMULATION OF STRUCTURAL FRAGMENTS OF COAL ORGANIC MASS

Вестник Кемеровского государственного университета, 2014
Hybrid B3LYP and gradient SLYP functionals were used to reveal the structure of organic mass of coal within the density functional theory in the basis of local orbitals. For all modeled compounds a number of important characteristics was identified – the
A. N. Porohnov, Yu. N. Zhuravlev
doaj  

Catalyst-Free Spontaneous Aza-Mannich/Lactamization Cascade Reaction: Easy Access to Polycyclic δ-Lactams

Molecules
Ring-fused azacyclic compounds are important building blocks in the synthesis of natural products and pharmaceutical agents. Herein, we report an effective and valuable one-pot approach to obtaining polycyclic fused δ-lactams from readily available 2 ...
Antonia Di Mola, Caterina Vietri, Consiglia Tedesco, Antonio Massa   +3 more
doaj   +1 more source

A Blue Emissive Heavy Atom‐Free Multiresonant Thermally Activated Delayed Fluorescent Emitter Shows Ultra‐Fast Reverse Intersystem Crossing

Angewandte Chemie, EarlyView.
The extended π‐system and low‐lying n‐π∗ transition endow DDOBDiKTa with a synergistic combination of strong spin‐orbit coupling, small reorganization energy and small ΔEST, enabling this blue boron‐nitrogen‐carbonyl hybrid emitter to achieve a fast kRISC of 6.34 × 106 s−1 together with OLEDs showing small efficiency roll‐off, with EQEmax/EQE10000 of ...
Wenrui Wang, Hassan Hafeez, Sen Wu, Aidan P. McKay, David B. Cordes, Ifor D. W. Samuel, Eli Zysman‐Colman   +6 more
wiley   +2 more sources

Bioactive Dehydrotyrosyl and Dehydrodopyl Compounds of Marine Origin

Marine Drugs, 2010
The amino acid, tyrosine, and its hydroxylated product, 3,4-dihydroxyphenylalanine (dopa), plays an important role in the biogenesis of a number of potentially important bioactive molecules in marine organisms. Interestingly, several of these tyrosyl and
Manickam Sugumaran, William E. Robinson
doaj   +1 more source

Analysis of condensate oil by comprehensive two-dimensional gas chromatography

Petroleum Exploration and Development, 2012
Twenty-two condensate oil samples from the Sichuan Basin are analyzed by comprehensive two-dimensional gas chromatography (GC×GC). Light hydrocarbon components are separated completely without the influence of co-eluting peaks, and the fingerprint ...
Huitong WANG, Shuichang ZHANG, Na WENG, Wei LI, Shengfei QIN, Wenling MA   +5 more
doaj   +1 more source

Risk assessment of chemical substances of safety concern generated in processed meats

Food Science and Human Wellness, 2019
This manuscript is reviewing the presence of substances of safety concern that may be generated in different types of meat products. Such substances include N-nitrosamines that can be generated under certain conditions when using nitrite as preservative,
Mónica Flores, Leticia Mora, Milagro Reig, Fidel Toldrá   +3 more
doaj   +1 more source

Polycyclic compounds as soluble epoxide hydrolase inhibitors

Invention Disclosure
In this invention, a novel family of benzohomoadamantane-based soluble epoxide hydrolase inhibitors is disclosed. The benzohomoadamantane scaffold is a polycyclic, readily accessible, system that features a homoadamantane unit fused with an aromatic ring.
S. Codony, E. Valverde, C. Galdeano, A.L. Turcu, R. Leiva, S. Vázquez   +5 more
doaj   +1 more source

Treatment of polycyclic armoatic hydrocarbone in agriculture

مجلة بغداد للعلوم, 2005
Despite the multiple sources of polycyclic compounds in the agricultural environment, this study suggests that it is possible to adopt the events of plants and their associated microorganisms in the soil, such as mushrooms and bacteria in the ...
Baghdad Science Journal
doaj   +1 more source