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Two Blatter Radicals Face-to-Face: A Constrained Diradical Architecture
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2024-12-20 , DOI: 10.1021/jacs.4c16500 Paulina Bartos, Dominika Pomikło, Kadin B. Sorenson, Oleksandr Hietsoi, Andrienne C. Friedli, Piotr Kaszyński
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2024-12-20 , DOI: 10.1021/jacs.4c16500 Paulina Bartos, Dominika Pomikło, Kadin B. Sorenson, Oleksandr Hietsoi, Andrienne C. Friedli, Piotr Kaszyński
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Cofacial arrangement of two Blatter radicals enforced by the peri-naphthalene scaffold represents a new approach to stable diradicals with strong through-space interactions. Two stereoisomers of the naphthalene-diradicals, anti and syn, are investigated by XRD, VT-EPR, UV–vis, electrochemical, kinetic, and DFT methods. In solutions, both stereoisomers exist as open-shell singlets with ΔES-T = −3.1 and −3.8 kcal mol–1, respectively. The anti isomer was resolved into enantiomers and converts to syn with ΔG‡298 = 23.6(8) kcal mol–1.
更新日期：2024-12-20
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