Reversible Carbon–Carbon Bond Breaking and Spin Equilibria in Bis(pyrimidinenorcorrole) | Zendy

Liu Bin | Zendy; Yoshida Takuya | Zendy; Li Xiaofang | Zendy; Stępień Marcin | Zendy; Shinokubo Hiroshi | Zendy; Chmielewski Piotr J. | Zendy

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Reversible Carbon–Carbon Bond Breaking and Spin Equilibria in Bis(pyrimidinenorcorrole)

Author(s) -

Liu Bin,

Yoshida Takuya,

Li Xiaofang,

Stępień Marcin,

Shinokubo Hiroshi,

Chmielewski Piotr J.

Publication year - 2016

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201607237

Subject(s) - dimer , homolysis , dissociation (chemistry) , dehydrogenation , photochemistry , chemistry , singlet state , spectroscopy , bond dissociation energy , radical , organic chemistry , atomic physics , excited state , catalysis , physics , quantum mechanics

Abstract Reversible homolytic dissociation of the bis(pyrimidinenorcorrole) σ‐dimer was elucidated by means of variable temperature ESR and 1 H NMR spectroscopy, mass spectrometry, and optical spectrocopy. Dehydrogenation of the σ‐dimer yielded another dimer displaying a singlet–triplet equilibrium in solution, strong NIR absorption (1570 nm), and a narrow electrochemical HOMO–LUMO gap (0.74 V).

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