Chemical bonding – Page 2
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Research
Quantum chemical analysis uncovers previously overlooked contributor to carbocation stability trend
Introducing substituents destabilises the parent substrates
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Research
Benzene’s bond lengths corrected
Sophisticated spectroscopic method shows that previously reported values were out by several milliangstroms
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Research
Computational study says polonium can form hydrogen bonds
Bonds driven by relativistic effects, rather than electronegativity differences
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Research
Rich chemistry revealed by tip microscopy pulses’ bond making and breaking
Using an STM, scientists have been able to precisely switch between three different molecules, opening the way to multiple selective transformations
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Research
Improbable rotaxane made using a foldamer helix
Macrocycle displaced to a site for which it has no formal affinity
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Opinion
In search of the chemical bond
Philosophy of science can help us discover new ways of understanding whether bonds really exist
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Research
Quantum nature of hydrogen bonds observed in acid–base complex
Spectroscopic evidence of proton delocalisation could change the way we approach acid–base chemistry
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Research
Strange new bonds found hiding in plain sight in common organometallics
Collective interactions are proof that there’s more to bonds than just connecting neighbouring atoms
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Research
Unusual hydrogen bonds found in proteins help them bind their targets
Weak interactions between hydrogen and carbon atoms have synthetic chemistry implications
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Research
First inspection of σ-hole reveals its peculiar shape
Atomic force microscopy snaps first experimental images of halogen bond’s charge distribution
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Research
Textbook electronegativity model fails when it comes to carbon–halogen bond strengths
Computational analysis finds that it’s size, not electronegativity differences, determining bond strength within periodic table groups
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Research
Clippanes join rotaxanes and catenanes in mechanically interlocked molecule family
Keck-clip molecules consist of two entangled gold–carbene metallotweezers
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Research
Uranium’s strong covalent bond breaks periodic table predictions
Actinide’s unusual covalency could explain its ability to fix nitrogen
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Research
Chemists reconsider C–H and C–C bond length rationale
Quantitative proof for steric repulsion theory
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Research
Anti-electrostatic halogen bonding shown in solution for the first time
UV-vis spectroscopy and computational analysis explore nature of counterintuitive anionic interaction
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Research
Bond between artificial and natural atom measured for the first time
Chemists reveal the tiny forces in chemical bonds between quantum corrals and AFM tip atoms
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Opinion
How values influence decisions in science
Empirical evidence is not always sufficient to determine the models we use
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Research
Exotic bond takes computational chemists by surprise
New results could help to solve the dispute around the strange Na–B bond in NaBH3–
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Research
Unstable silicon double bonds tamed in polymers made on metals
Process could ‘open the door’ to new electronic materials