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Showing 28777 to 1102 of 1102 entries
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Atomistic insights into the conversion reaction in iron fluoride: a dynamically adaptive force field approach.

Journal of the American Chemical Society

Ma Y, Garofalini SH.
PMID: 22545624
J Am Chem Soc. 2012 May 16;134(19):8205-11. doi: 10.1021/ja301637c. Epub 2012 Apr 30.

Nanoscale metal fluorides are promising candidates for high capacity lithium ion batteries, in which a conversion reaction upon exposure to Li ions enables access to the multiple valence states of the metal cation. However, little is known about the...

Revisiting the Balz-Schiemann Reaction of Aryldiazonium Tetrafluoroborate in Different Solvents under Catalyst- and Additive-Free Conditions.

ACS omega

Yang L, Zhang CP.
PMID: 34471763
ACS Omega. 2021 Aug 13;6(33):21595-21603. doi: 10.1021/acsomega.1c02825. eCollection 2021 Aug 24.

The thermal and photochemical Balz-Schiemann reaction in commonly used solvents was revisited under catalyst- and additive-free conditions. The study showed that using low- or non-polar solvents could improve the pyrolysis and photolysis of aryldiazonium tetrafluoroborates, enabling effective fluorination at...

Palladium-catalyzed asymmetric allylic alkylation (AAA) with alkyl sulfones as nucleophiles.

Chemical science

Trost BM, Jiao Z, Gholami H.
PMID: 34447546
Chem Sci. 2021 Jul 02;12(31):10532-10537. doi: 10.1039/d1sc02599f. eCollection 2021 Aug 11.

An efficient palladium-catalyzed AAA reaction with a simple α-sulfonyl carbon anion as nucleophiles is presented for the first time. Allyl fluorides are used as superior precursors for the generation of π-allyl complexes that upon ionization liberate fluoride anions for...

Searching for Monomeric Nickel Tetrafluoride: Unravelling Infrared Matrix Isolation Spectra of Higher Nickel Fluorides.

Angewandte Chemie (International ed. in English)

Li L, Sakr AK, Schlöder T, Klein S, Beckers H, Kitsaras MP, Snelling HV, Young NA, Andrae D, Riedel S.
PMID: 33300240
Angew Chem Int Ed Engl. 2021 Mar 15;60(12):6391-6394. doi: 10.1002/anie.202015501. Epub 2021 Jan 28.

Binary transition metal fluorides are textbook examples combining complex electronic features with most fundamental molecular structures. High-valent nickel fluorides are among the strongest known fluorinating and oxidizing agents, but there is a lack of experimental structural and spectroscopic investigations...

Vacant Manganese-Based Perovskite Fluorides@Reduced Graphene Oxides for Na-Ion Storage with Pseudocapacitive Conversion/Insertion Dual Mechanisms.

Chemistry (Weinheim an der Bergstrasse, Germany)

Huang Y, Ding R, Ying D, Yan T, Huang Y, Tan C, Sun X, Gao P, Liu E.
PMID: 33913593
Chemistry. 2021 Jul 07;27(38):9954-9960. doi: 10.1002/chem.202101043. Epub 2021 May 26.

Na-ion capacitors (NICs) and Na-based dual-ion batteries (Na-DIBs) have been considered to be promising alternatives to traditional lithium-ion batteries (LIBs) because of the abundance and low cost of the Na-ion, but their energy density, power density and life cycle...

Copper-catalyzed three-component reaction of arylhydrazine hydrochloride, DABSO, and NFSI for the synthesis of arenesulfonyl fluorides.

Organic & biomolecular chemistry

Pan Q, Liu Y, Pang W, Wu J, Ma X, Hu X, Guo Y, Chen QY, Liu C.
PMID: 34605502
Org Biomol Chem. 2021 Oct 27;19(41):8999-9003. doi: 10.1039/d1ob01697k.

This paper reports a convenient copper-catalyzed three-component conversion of arylhydrazine hydrochlorides to arenesulfonyl fluorides in good yields under mild conditions, using 1,4-diazabicyclo [2.2.2]octane bis(sulfur dioxide) (DABSO) as a sulfonyl source and

Method development for determination of organic fluorine in gasoline and its components using high-resolution continuum source flame molecular absorption spectrometry with gallium fluoride as a target molecule.

Talanta

Kowalewska Z, Brzezińska K, Zieliński J, Pilarczyk J.
PMID: 33714474
Talanta. 2021 May 15;227:122205. doi: 10.1016/j.talanta.2021.122205. Epub 2021 Feb 11.

High-resolution continuum source molecular absorption spectrometry (HR-CS MAS) has been developing fast for fluorine determination, but neither flame nor graphite furnace technique have ever been applied for the analysis of petroleum or its products. Hydrogen fluoride can be applied...

Teeth of the red fox Vulpes vulpes (L., 1758) as a bioindicator in studies on fluoride pollution.

Acta theriologica

Kalisińska E, Palczewska-Komsa M.
PMID: 21957316
Acta Theriol (Warsz). 2011 Oct;56(4):343-351. doi: 10.1007/s13364-011-0039-8. Epub 2011 Apr 21.

An examination was made of fluoride content in the mandibular first molars of the permanent teeth of the red fox Vulpes vulpes living in north-west (NW) Poland. The teeth were first dried to a constant weight at 105°C and...

Fluoridated water impact on tooth decay and fluorosis in 17-20-year-olds exposed to fluoride toothpaste.

Journal of public health dentistry

Marques RB, Lima CCB, de Abreu Costa MLV, de Deus Moura de Lima M, de Fátima Almeida de Deus Moura L, Tabchoury CPM, de Moura MS.
PMID: 34350986
J Public Health Dent. 2021 Aug 05; doi: 10.1111/jphd.12472. Epub 2021 Aug 05.

OBJECTIVE: To determine the impact of water fluoridation on the prevalence and severity of dental caries and fluorosis in individuals aged 17-20 years exposed to fluoride toothpaste.METHODS: The study population consisted of 660 students from public schools, residents of...

Nutritional Scientist or Biochemist?.

Suttie JW.
UIID-AD: 1192
2011;31:1-14. doi: 10.1146/annurev.nutr.012809.104633.

When invited by the editors to provide a prefatory article for the Annual Review of Nutrition, I attempted to decide what might be unique about my experiences as a nutritional biochemist. Although a large proportion of contemporary nutritional scientists...

Showing 28777 to 1102 of 1102 entries