Results 91 to 100 of about 169,803 (413)

Optical properties of gold nanoclusters constructed from Au13 units

open access: yesAggregate, Volume 3, Issue 6, December 2022., 2022
This review summarizes various optical properties of gold nanoclusters that consist of Au13 motifs. The structural evolution from Au13 to Au25, Au37, and Au60 is illustrated with increasing number of the Au13 building blocks. The review on the photo‐physics of Au13 family provides a comprehensive understanding of Au13‐assembled nanoclusters, which is ...
Jie Kong   +3 more
wiley   +1 more source

Synthesis of novel N-heteroarylphenyl trifluoroacetamide derivatives under thermal and microwave conditions

open access: yesArabian Journal of Chemistry, 2017
An efficient routes to various kinds of heterocycles and fused heterocycles incorporated trifluoroacetamide moiety have been synthesized by the reaction of versatile N-(4-(2-bromoacetyl)phenyl)-2,2,2-trifluoroacetamide with thioamides and heterocyclic ...
Mohamed R. Shaaban
doaj   +1 more source

Crystal structure of a 1,1-dibutyl-1H,3H-naphtho[1,8-cd][1,2,6]oxastannaborinin-3-ol

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2021
The title oxastannaborininol compound, [Sn(C4H9)2(C10H7BO2)], has been synthesized and crystallized. While heterocycles containing a C–O–B group are common, heterocycles containing an E–O–B unit, where E is an element of the carbon group except for ...
Kevin Breitwieser, Peter Chen
doaj   +1 more source

Oxetanes: Recent Advances in Synthesis, Reactivity and Medicinal Chemistry [PDF]

open access: yes, 2016
The 4-membered oxetane ring has been increasingly exploited for its behaviors, i.e. influence on physicochemical properties as a stable motif in medicinal chemistry, and propensity to undergo ring opening reactions as a synthetic intermediate.
Bull, JA   +4 more
core   +1 more source

ChemInform Abstract: Adventures with Heterocycles

open access: yesChemInform, 2000
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
openaire   +5 more sources

Advancements in Carbon‐Based Piezoelectric Materials: Mechanism, Classification, and Applications in Energy Science

open access: yesAdvanced Materials, EarlyView.
Carbon‐based piezoelectric materials are systematically categorized based on their structural and functional properties. The mechanisms of stress‐induced charge transfer are elucidated, and their applications are explored across three key domains: piezoelectric catalysis for energy conversion and environmental remediation, piezoelectric biomedical ...
Mude Zhu   +3 more
wiley   +1 more source

Electrooxidation enables highly regioselective dearomative annulation of indole and benzofuran derivatives

open access: yesNature Communications, 2020
Enriching the chemical space of polycyclic heterocycles is of high value in chemical biology. Here, the authors report an electrooxidative protocol for the regioselective dearomative annulation of indoles and benzofurans under undivided cell conditions ...
Kun Liu   +9 more
doaj   +1 more source

Photocatalytic sequential C–H functionalization expediting acetoxymalonylation of imidazo heterocycles

open access: yesBeilstein Journal of Organic Chemistry, 2023
The importance of functionalized imidazo heterocycles has often been featured in several impactful research both from academia and industry. Herein, we report a direct C-3 acetoxymalonylation of imidazo heterocycles using relay C–H functionalization ...
Deepak Singh   +2 more
doaj   +1 more source

Nickel complexes of phosphine-appended benzannulated boron heterocycles [PDF]

open access: yes, 2019
We report the synthesis and characterization of two diphosphine nickel complexes containing 9-borafluorene (PBFlu, 9-(diisopropylphosphino)phenyl-9-borafluorene) and 9,10-dihydroboranthrene (B 2 P 2 , 9,10-bis(2-(diisopropylphosphino)phenyl)-9,10 ...
Essex, LA, Harman, WH, Taylor, JW
core   +1 more source

Expanding a fluorescent RNA alphabet: synthesis, photophysics and utility of isothiazole-derived purine nucleoside surrogates. [PDF]

open access: yes, 2017
A series of emissive ribonucleoside purine mimics, all comprised of an isothiazolo[4,3-d]pyrimidine core, was prepared using a divergent pathway involving a key Thorpe-Ziegler cyclization.
Fin, Andrea   +2 more
core   +1 more source

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