Anion···π Interactions and Metastability: Structural Transformations in a Silver–Pyrazine Network
| Autor: | Karen Robertson, William J. Gee, Jonathan M. Skelton |
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| Rok vydání: | 2017 |
| Předmět: |
Work (thermodynamics)
Anion···π interactions Silver Pyrazine 010405 organic chemistry Chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences Ion Coordination polymers Inorganic Chemistry Chemical effects Solvent Density functional calculations Single-crystal-to-single-crystal transformations Crystallography chemistry.chemical_compound QD156 Metastability Metastable compounds |
| Zdroj: | Gee, W J, Robertson, K & Skelton, J M 2017, ' Anion···π Interactions and Metastability : Structural Transformations in a Silver–Pyrazine Network ', European Journal of Inorganic Chemistry, vol. 2017, no. 19, pp. 2628-2636 . https://doi.org/10.1002/ejic.201700505 |
| ISSN: | 1099-0682 1434-1948 |
| Popis: | Structural evidence of anion···π interactions influencing single-crystal-to-single-crystal (SCSC) transformations is demonstrated herein with a metastable silver–pyrazine system. A cascade of SCSC transformations driven by changes to anion···π stabilisation sees two metastable species convert to a ground-state form. This constitutes one of the most dramatic chemical effects yet attributed to anion···π interactions. Metastable networks [Ag(µ-NO2)(pyz)] (1, 2) are composed of dimerised (1) and delaminated (2) AgNO2/pyrazine, which convert to the ground-state [Ag(κ2-NO2)(pyz)] form 3 with 3D connectivity. The metastable phases show responsiveness to solvent vapour and temperature. This work shows how anion···π interactions influence solid-state structure with support from computational modelling and highlights how metastable materials may harness anion···π interactions to deliver large structural and property changes. |
| Databáze: | OpenAIRE |
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