Results 91 to 100 of about 44,104 (282)

Steuerung der Rotation eines Guanidiniumkations durch Kation‐π‐Wechselwirkungen

Angewandte Chemie, EarlyView.
Ein Lanthanid‐π‐Container wurde für die Bindung eines Guanidiniumkations in dessen aromatischer Kavität mittels Kation‐π‐Wechselwirkungen verwendet. Röntgenkristallographie und Festkörper‐NMR‐Spektroskopie bei schneller Rotation um den magischen Winkel wurden verwendet, um die zugrundeliegenden Wirt‐Gast‐Interaktionen zu untersuchen.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

Sources and pathways of human exposure to perchlorate in the United States: A comparison of environmental monitoring and biomonitoring approaches

Environmental Chemistry and Ecotoxicology
Perchlorate is a widespread environmental pollutant and a known thyroid hormone disruptor. Little is known about the sources and pathways of human exposure to perchlorate.
Kurunthachalam Kannan, Qian Wu, Zhong-Min Li   +2 more
doaj   +1 more source

Scientific Opinion on the risks to public health related to the presence of perchlorate in food, in particular fruits and vegetables

EFSA Journal, 2014
The European Food Safety Authority (EFSA) received a request from the European Commission for a scientific opinion on perchlorate in food, in particular fruits and vegetables.
EFSA Panel on Contaminants in the Food Chain (CONTAM)
doaj   +1 more source

4-Ethoxyanilinium perchlorate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the title compound, C(8)H(12)NO(+)·ClO(4) (-), there are strong hydrogen bonds between the ammonium groups and the perchlorate O atoms.
openaire   +3 more sources

Controlling the Guanidinium Cation Rotation by Cation–π Interactions

Angewandte Chemie International Edition, EarlyView.
A lanthanide π‐container has been employed to trap a guanidinium cation inside the aromatic cavity by cation–π interactions. X‐ray crystallography and solid‐state nuclear magnetic resonance (NMR) spectroscopy at fast magic‐angle spinning (MAS) frequencies have been utilized to probe the underlying host–guest interactions.
Hannah Busch, Lennart Günzel, Ettore Bartalucci, Robert Schuster, Christian Zocher, Martin Börner, Chandan K. Das, Florian Taube, Björn Corzilius, Maria Fyta, Matthias Ernst, Berthold Kersting, Thomas Wiegand   +12 more
wiley   +1 more source

First Evidence for Ozonido‐TMC Complexes of Iron and Cobalt

Angewandte Chemie International Edition, EarlyView.
Reaction of ozone with iron(II) complexes [(TMC)Fe(OTf)]BArF, [(D12‐TMC)Fe(OTf)]BArF, and cobalt(II) complexes [(TMC)Co(OTf)]BArF, [(D12‐TMC)Co(X)]BArF (X = OTf, F) gives ozonido and oxido complexes at temperatures as low as –155°C in a 4:1 mixture of 2‐Me‐THF and THF. ABSTRACT We present compelling evidence for the first Fe‐ and Co‐ozonido complexes: [
Stefan Schaub, Dennis Gerbig, Raffael C. Wende, Heike Hausmann, Jonathan Becker, Christian Würtele, Laura Senft, Ina Kellner, Gunasekaran Velmurugan, Marion Kerscher, Ivana Ivanović‐Burmazović, Peter Comba, Joshua Telser, Peter R. Schreiner, Siegfried Schindler   +14 more
wiley   +1 more source

2,4-Dimethylanilinium perchlorate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2010
The crystal packing of the title compound, C(8)H(12)N(+)·ClO(4) (-), is stabilized by N-H⋯O hydrogen bonds, the protonated amine group acting as a hydrogen-bond donor with the perchlorate O atoms as acceptors. These connect neighbouring cations and anions, forming a two-dimensional network.
openaire   +3 more sources

Investigating Terrestrial and Extraterrestrial Bioremediation through Microbial Action Using Raman Spectroscopy

Challenges
Sodium perchlorate is a toxic salt-based compound found both terrestrially, (due to pollution) and extraterrestrially on the surface of Mars. Perchlorate pollution poses a risk to agricultural-based activities as once it enters soils/waterways it can be ...
Daniel Keaney, Venkata V. B. Yallapragada, Liam O’Faolain, Ganga Chinna Rao Devarapu, Karen Finn, Brigid Lucey   +5 more
doaj   +1 more source

One‐Step Electrodeposition of Iron Oxyhydroxide Onto 3D Porous Graphene Substrates for on Chip Asymmetric Micro‐Supercapacitors

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
A micro‐supercapacitor with electrodeposited iron oxyhydroxide (FeOOH) as the negative electrode and birnessite manganese oxide (MnO2) as the positive electrode achieves a 2 V working voltage, stable cycling in an aqueous electrolyte, and high energy and power densities of 21 μWh cm‐2 and 2.5 mW cm‐2 respectively.
Filipe Braga, Gabriel Casano, Manel Sonni, Harry Finch, Vinod R. Dhanak, Marco Caffio, Laurence J. Hardwick   +6 more
wiley   +1 more source

Biphasic Perchlorate Activation Enabled by a Dinuclear Fe-NHC Complex

Perchlorate, initially perceived as a weakly coordinating counterion rather than a reactive oxidizing reagent due to its kinetic stability, has garnered attention for its potential in microbial systems.
Kai, Hua, Xinyu, Xu, MING-TIAN, ZHANG
core   +1 more source