Chemical bonding – Page 2
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ResearchRich 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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ResearchImprobable rotaxane made using a foldamer helix
Macrocycle displaced to a site for which it has no formal affinity
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OpinionIn search of the chemical bond
Philosophy of science can help us discover new ways of understanding whether bonds really exist
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ResearchQuantum 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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ResearchStrange 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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ResearchUnusual 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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ResearchFirst 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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ResearchTextbook 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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ResearchClippanes join rotaxanes and catenanes in mechanically interlocked molecule family
Keck-clip molecules consist of two entangled gold–carbene metallotweezers
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ResearchUranium’s strong covalent bond breaks periodic table predictions
Actinide’s unusual covalency could explain its ability to fix nitrogen
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ResearchChemists reconsider C–H and C–C bond length rationale
Quantitative proof for steric repulsion theory
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ResearchAnti-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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ResearchBond 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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OpinionHow values influence decisions in science
Empirical evidence is not always sufficient to determine the models we use
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ResearchExotic 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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ResearchUnstable silicon double bonds tamed in polymers made on metals
Process could ‘open the door’ to new electronic materials
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OpinionHow philosophy helps solve puzzles in chemistry
Without realising it, chemists use a range of philosophical tools to probe the world
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OpinionWhen does a hydrogen bond become a covalent bond?
Ultrafast infrared spectroscopy probes the character of the short, strong bonds in HF2–
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ResearchIntricate supramolecular rosette demonstrates power of cooperative interactions
Rosette assembles inside porphyrin nanoring when all components are present