Inside Cover: Dynamic Covalent Self‐Assembly of Chloride‐ and Ion‐Pair‐Templated Cryptates (Angew. Chem. Int. Ed. 28/2022)

Hollstein, Selina; Shyshov, Oleksandr; Hanževački, Marko; Zhao, Jie; Rudolf, Tamara; Jäger, Christof M.; Delius, Max von

doi:10.1002/anie.202207230

Cited by 3 publications

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“…In 2023, von Delius et al reported the synthesis of trialkoxysilane cryptate-Na + complexes 39 and 40, utilizing the dynamic covalent reactivity of the SiÀ O bond (Scheme 13). [45] The reaction of trialkoxysilanes 41 and 42 with diethylene glycol 43 in the presence of a sodium cation under acidic conditions yielded the trialkoxysilane cryptate-Na + complexes 39 and 40, respectively. The molecular structures of these complexes were analyzed by X-ray crystallography.…”

Section: B) Bicycloalkanes With Silicon Bridgeheadsmentioning

confidence: 99%

Topological Structural Chemistry of Fused Bicycloalkanes Allowing Homeomorphic Conversions

Setaka

2024

Eur J Org Chem

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Fused bicycloalkanes have several structures with different orientation of the substituents, such as out,out‐, in,in, and in,out‐structures. Some bicycloalkanes can undergo homeomorphic conversion between certain structures, for instance an out,out‐structure convert to an in,in‐structure. This homeomorphism can be achieved by one chain passing through the macroring. In this report, topological structural chemistry of fused bicycloalkanes and their analogues allowing homeomorphic conversions were reviewed. Although the concept of homeomorphism in fused bicycloalkanes was proposed 50 years ago, comprehensive researches on their structural chemistry are still ongoing. These understandings are highly relevant to the fundamentals of many fields of chemistry, including structural chemistry, theoretical chemistry, natural products chemistry, and materials science.

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Section: B) Bicycloalkanes With Silicon Bridgeheadsmentioning

confidence: 99%

Topological Structural Chemistry of Fused Bicycloalkanes Allowing Homeomorphic Conversions

Setaka

2024

Eur J Org Chem

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“…In recent years, several other dynamic covalent bond formations like siloxane exchange, and diketoenamines, have been applied in the design of vitrimer materials. [152][153][154][155][156] Figure 8. Vitrimers with a dynamic covalent cross-linking.…”

Section: Processable Thermosets (Covalent Adaptable Network Cans)mentioning

confidence: 99%

Dynamic Chemistry Toolbox for Advanced Sustainable Materials

Deng,

Zhang,

Feringa

2024

Advanced Science

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Developing dynamic chemistry for polymeric materials offers chemical solutions to solve key problems associated with current plastics. Mechanical performance and dynamic function are equally important in material design because the former determines the application scope and the latter enables chemical recycling and hence sustainability. However, it is a long‐term challenge to balance the subtle trade‐off between mechanical robustness and dynamic properties in a single material. The rise of dynamic chemistry, including supramolecular and dynamic covalent chemistry, provides many opportunities and versatile molecular tools for designing constitutionally dynamic materials that can adapt, repair, and recycle. Facing the growing social need for developing advanced sustainable materials without compromising properties, recent progress showing how the toolbox of dynamic chemistry can be explored to enable high‐performance sustainable materials by molecular engineering strategies is discussed here. The state of the art and recent milestones are summarized and discussed, followed by an outlook toward future opportunities and challenges present in this field.

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“…It is important to note the absence of protons in the exchange, which thus substantially differs from Si-OR/HO-R′ exchange under protic conditions. 38 We also added the first spectroscopic evidence for the spontaneous occurrence of a direct Si-O -bond metathesis, thus shedding light on the dynamic constitutional nature of the most common chemical bond in the Earth's crust. These insights have implications for catalysis and for environmental and materials science.…”

Section: Account Synlettmentioning

confidence: 99%

p-Block Element Catecholates: Lewis Superacidic, Constitutionally Dynamic, and Redox Active

Greb

2023

Synlett

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Numerous strategies for enhancing the reactivity and properties of p-block elements have been devised in the past decades. The present Account article discusses our approaches by a distinct ligand control on p-block elements in their normal (group) oxidation states. Catecholato ligands at silicon, germanium, and phosphorous enable a range of rewarding properties. Substantial electron withdrawal paired with structural constraint effects (influence of deformation energy) impart Lewis superacidity to these abundant elements. The ease of synthesis of such species facilitates screening in catalysis, promising a range of applications by powerful bond activation. Low barrier Si-O/Si-O bond metathesis imposes the most abundant bond in our Earth’s crust with adaptive features under mild conditions and establishes a new branch of constitutional dynamic chemistry. The redox-active character of catecholates grants access to novel compounds with tunable open-shell features. Overall, p-block catecholates offer unique opportunities due to the versatile features that will enrich the chemistry of the main group elements.

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Inside Cover: Dynamic Covalent Self‐Assembly of Chloride‐ and Ion‐Pair‐Templated Cryptates (Angew. Chem. Int. Ed. 28/2022)

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Cited by 3 publications

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Topological Structural Chemistry of Fused Bicycloalkanes Allowing Homeomorphic Conversions

Topological Structural Chemistry of Fused Bicycloalkanes Allowing Homeomorphic Conversions

Dynamic Chemistry Toolbox for Advanced Sustainable Materials

p-Block Element Catecholates: Lewis Superacidic, Constitutionally Dynamic, and Redox Active

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