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Cover Picture: Hydrogen‐Bonding Effect on Spin‐Center Transfer of Tetrathiafulvalene‐Linked 6‐Oxophenalenoxyl Evaluated Using Temperature‐Dependent Cyclic Voltammetry and Theoretical Calculations (Chem. Asian J. 2/2014)
Author(s) -
Nishida Shinsuke,
Fukui Kozo,
Morita Yasushi
Publication year - 2014
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201490000
Subject(s) - chemistry , tetrathiafulvalene , intramolecular force , cyclic voltammetry , electron transfer , intermolecular force , hydrogen bond , photochemistry , acetonitrile , solvent , molecule , radical ion , crystallography , stereochemistry , electrochemistry , organic chemistry , ion , electrode
The tetrathiafulvalene‐linked 6‐oxophenalenoxyl (TTF‐6OPO) neutral radical exhibits a spin‐center transfer with an intramolecular electron transfer. In their Full Paper on page 500 ff. , Shinsuke Nishida, Kozo Fukui, and Yasushi Morita report that an intermolecular hydrogen bond between the neutral radical and a solvent molecule contributes to this unprecedented phenomenon. Temperature‐dependent cyclic voltammetry measurements revealed that the redox potentials Δ E of TTF‐6OPO become favorable for spin‐center transfer with decreasing temperature in a CH 2 Cl 2 /2,2,2‐trifluoroethanol (TFE) mixed solvent system. In the Cover picture, the continuous color change of the solution of TTF‐6OPO occurring with the temperature‐dependent Δ E shift is expressed as an autumn leaf color.
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