ArticleChemical science2018
Shape-selective crystallisation of fluxional carbon cages.
Article in Chemical science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Bullvalene-Containing Molecular Glasses.Angewandte Chemie (International ed. in English) · 2025Article
- Control of dynamic spNature chemistry · 2023Article
- Guest-Dependent Isomer Convergence of a Permanently Fluxional Coordination Cage.Angewandte Chemie (International ed. in English) · 2022Article
- Hypervalent iodine promoted the synthesis of cycloheptatrienes and cyclopropanes.Chemical science · 2022Article
- Shapeshifting molecules: the story so far and the shape of things to come.Chemical science · 2020Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dynamic covalent rearrangements of fluxional carbon cages, such as bullvalenes and barbaralanes, impart 'shapeshifting' molecular properties. Here, a series of five barbaralanes each interconvert dynamically between two constitutional isomers in solution, but resolve to single isomers upon crystallisation. Unexpectedly, the minor solution-phase isomers are resolved in two instances. Through dynamic NMR, crystallographic and DFT analyses, we show that the isomer observed in the solid state is not a direct consequence of the equilibrium distribution in solution or any specific noncovalent interactions. Rather, the dynamic preferential crystallisation is dictated by differences in molecular size and shape.
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Registered trials
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