All articles by Katrina Krämer – Page 20
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Research
Red–blue light switch pushes equilibrium both ways
Switchable reaction cycle drives bond-making or breaking depending on light colour
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Research
Exoplanet with heavy metal atmosphere discovered
Iron found for the first time in gas giant’s ultra-hot atmosphere
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Research
Molecular necklace with record 24 positive charges made
Supercharged catenane squeezes 24 positive charges into five-ring interlocked system
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Research
Round-the-ring catalysis makes cyclic peptides chiral
Classic hydrogenation catalyst installs multiple stereocentres one by one to create small amino acid rings as single enantiomers
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News
Merck’s €10k synthesis competition will lab test routes
Pharma company offers €10,000 in prize money for retrosynthesis challenge that will bench test finalists’ proposals
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Research
Chameleon boron switches between electrophile and nucleophile
Mida boronates can be either electrophilic or nucleophilic in rearrangement reactions
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Research
Probability count reveals single atoms under electron microscope
Statistical model removes human bias in finding individual atoms in fuzzy images
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Research
Highly reactive carbocations tamed in bond forming reaction
Chemists harness vinyl cations for hydrocarbon synthesis and discover an unusual mechanism along the way
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Research
Mass spectrometry and machine learning find fake Robert Burns’ manuscripts
Chemical fingerprinting distinguishes famous Scottish poet’s 200-year-old letters from contemporary forgeries
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Research
MOF detox could save aspirin overdose patients
Detoxifying metal–organic framework removes dangerous doses of salicylic acid from rats’ guts
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Research
Antioxidant repair keeps radical reaction running
Repurposed antioxidant’s mechanism-mending properties make tough alkene alkylation possible
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Research
First firm evidence for liquid water on Mars
Not quite life on Mars, but there are lakes beneath the red planet’s glaciers
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Research
Carbon rings weaved into solvent-cleaning mesh
Tiny pores in conjugated carbon network cleanse organic solvents of impurities
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Research
Puzzle of why very similar sugars can taste much sweeter than others solved
The sweetest saccharides form the strongest and shortest hydrogen bonds
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Research
Textbook aromatic substitution mechanism overthrown
Established intermediate in nucleophilic aromatic substitution found to be a rare exception rather than the rule
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News
Bizarre chemical structure sinks paper five years later
In a detective story of a retraction, an antimicrobial compound’s eyebrow-raising structure led to allegations of image manipulation
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News
Austria’s bid to sue EU over UK nuclear plant fails
Judge rejects Austria’s legal challenge of UK state aid for planned nuclear power station
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Research
‘Break it to make it’ reaction to diversify drugs structures
Carbon–carbon bond breaking reaction might make chemists rethink how they build molecules
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Research
Flick of a switch alters permeability of graphene oxide
Membrane with built-in electric switch could find use in water purification or artificial biological systems