Results 31 to 40 of about 1,661,872 (172)

Trace environmental speciation analysis for organometallic compounds by isothermal multicapillary gas chromatography - Microwave induced plasma atomic emission spectrometry (MC GC - MIP AES)

, 1997
International audienceMulticapillary column gas chromatography (MC GC) - microwave induced plasma atomic emission spectrometry (MIP AES) is proposed as a tool for the rapid speciation analysis of traces of organomercury, organolead and organotin ...
Lobinski, Ryszard, Wasik, A., Pereiro, I.R.   +2 more
core   +2 more sources

Triplet State‐Promoted Kumada‐Corriu Coupling Catalyzed by Hydrotris(3,5‐diisopropylpyrazolyl)boratocobalt(III)diiodide

European Journal of Inorganic Chemistry, Volume 27, Issue 34, December 2, 2024.
The light‐sensitive Kumada‐Corriu C−C hetero‐coupling of halogeno‐arenes and an arylmagnesiumbromides promoted by TpiPrCoI2, occurs with yields>80 % thanks to a singlet‐to‐triplet spin state d‐d transitions at bisaryl‐cobalt catalytic intermediates. Abstract The Kumada‐Corriu hetero‐coupling between an halogeno‐arene and an arylmagnesiumbromide can be ...
Zekun Wang, Yann Cornaton, Jean‐Pierre Djukic   +2 more
wiley   +1 more source

Henkel‐like Decarboxylation Produces Mononuclear Arylalkalis, [4‐(CH3)3N(C6H4)M]+ which Hydrolyse and Undergo Surprising SN2 Reactions Between Alkali Hydroxides and (CH3)3NC6H5+

European Journal of Inorganic Chemistry, Volume 27, Issue 31, November 4, 2024.
Mass‐spectrometry based metal‐mediated decarboxylation reactions continue to be a wellspring to form and study the reactions of organometallics. Here the mononuclear arylalkali cations [4‐(CH3)3N(C6H4)M]+ have been prepared and their hydrolysis reactions studied.
Weam A. O. Altalhi, Allan J. Canty, Richard A. J. O'Hair   +2 more
wiley   +1 more source

Protective Effects of Syringic Acid Against Oxidative Damage, Apoptosis, Autophagy, Inflammation, Testicular Histopathologic Disorders, and Impaired Sperm Quality in the Testicular Tissue of Rats Induced by Mercuric Chloride

Environmental Toxicology, Volume 39, Issue 10, Page 4803-4814, October 2024.
ABSTRACT Mercury (Hg) is one of the most toxic heavy metals that damage testicular tissue. Mercury chloride (HgCl2) is one of the most toxic forms of mercury that can easily cross biological membranes. Syringic acid (SA) is a natural flavonoid found in many vegetables and fruits.
Serkan Ali Akarsu, Cihan Gür, Sefa Küçükler, Nurhan Akaras, Mustafa İleritürk, Fatih Mehmet Kandemir   +5 more
wiley   +1 more source

A 14,000‐Year Sediment Record of Mercury Accumulation and Isotopic Signatures From Lake Malaya Chabyda (Siberia)

Journal of Geophysical Research: Biogeosciences, Volume 129, Issue 10, October 2024.
Abstract Eurasian permafrost soils contain large amounts of organic carbon (OC) and mercury (Hg), sequestered by vegetation during past and present interglacial periods. Lake sediment archives may help understand past OC and Hg dynamics and how they interact with climate‐related variables.
Lara Hughes‐Allen, Frédéric Bouchard, Boris K. Biskaborn, Sahara Cardelli, Dmitry A. Subetto, Laure Laffont, Jeroen E. Sonke   +6 more
wiley   +1 more source

Artifact formation of methyl- and ethyl-mercury compounds from inorganic mercury during derivatization using sodium tetra(n-propyl)borate

, 2005
Sodium tetra(n-propyl)borate (NaBPr4) was introduced as derivatization reagent to extend the possibility for determining ethyl-mercury compounds.
Huang, Jen-How
core   +1 more source

A history of strategies and a tapestry of triumphant tales in tackling plant fungal diseases

Plant Pathology, Volume 73, Issue 7, Page 1619-1628, September 2024.
Here we review several major historical triumphs made by plant pathologists and breeders to tackle fungal diseases predominantly of the top five food crops—rice, wheat, maize, soybean and potato. Abstract Ever since the first crops were domesticated over 10,000 years ago, pests and pathogens have wreaked havoc on crop production.
Sarah L. Bailey, Césarée Morier‐Gxoyiya, Swathy Puthanvila Surendrababu, Diane G. O. Saunders   +3 more
wiley   +1 more source

Characterisation of the first authenticated organomercury hydroxide, 4-Me₂NC₆H₄HgOH [PDF]

, 2004
4-Me₂NC₆H₄HgOH was prepared from 4-Me₂NC₆H₄HgOAc. Full characterisation showed that it crystallises as discrete molecules, the first example of a true organomercury hydroxide in the solid state.
Nicholson, Brian K., Whitley, Sam K.
core   +1 more source

Green Metrics and Sustainability in Photocatalysis

ChemCatChem, Volume 16, Issue 14, July 22, 2024.
Lights and shadows in photocatalysis. This Review analyzes the sustainability of photoredox catalytic processes in the context of mass‐based metrics, highlighting significant sustainability issues in photocatalysts synthesis and in catalytic protocols, primarily driven by energy demanding preparations and by solvent intensive work‐up and purification ...
Arianna Quintavalla, Davide Carboni, Marco Lombardo   +2 more
wiley   +1 more source

Towards the Stable Binding of Mercury: Synthesis and Functionalization of Dibenzyldiazabicyclononane Scaffolds

European Journal of Organic Chemistry, Volume 27, Issue 25, July 1, 2024.
Mercury was safely caged into a dibenzyldiazabicyclononane scaffold to ensure the stable preparation of organomercurials for later radiotracer applications in nuclear medicine. The chosen synthesis route opens the easy introduction of different leaving groups for the mercuration process.
Toni Weber, Tobias Krönke, Martin Köckerling, Martin Walther, Hans‐Jürgen Pietzsch, Klaus Kopka, Constantin Mamat   +6 more
wiley   +1 more source