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- W4245721922 abstract "Chemical reduction of OBO-fused double[5]helicene with Group 1 metals (Na and K) has been investigated for the first time. Two doubly-reduced products have been isolated and structurally characterized by single-crystal X-ray diffraction, revealing a solvent-separated ion triplet (SSIT) with Na+ ions and a contact-ion pair (CIP) with K+ ion. As the key structural outcome, the X-ray crystallographic analysis discloses the consequences of adding two electrons to the double helicene core in the SSIT without metal binding and reveals the preferential binding site in the CIP with K+ counterions. In both products, an increase in the twisting of the double helicene core upon charging was observed. The negative charge localization at the central core has been identified by theoretical calculations, which are in full agreement with X-ray crystallographic and NMR spectroscopic results. Notably, it was confirmed that the two-electron reduction of OBO-fused double[5]helicene is reversible." @default.
- W4245721922 created "2022-05-12" @default.
- W4245721922 creator A5033692918 @default.
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- W4245721922 creator A5057543252 @default.
- W4245721922 creator A5072097825 @default.
- W4245721922 creator A5083286960 @default.
- W4245721922 date "2019-09-09" @default.
- W4245721922 modified "2023-09-28" @default.
- W4245721922 title "Charging OBO‐Fused Double [5]Helicene with Electrons" @default.
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- W4245721922 doi "https://doi.org/10.1002/ange.201908658" @default.
- W4245721922 hasPublicationYear "2019" @default.
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