Isolation of the Triplet Ground State Aminyl Diradical | Zendy

Boratyński Przemysław J. | Zendy; Pink Maren | Zendy; Rajca Suchada | Zendy; Rajca Andrzej | Zendy

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Isolation of the Triplet Ground State Aminyl Diradical

Author(s) -

Boratyński Przemysław J.,

Pink Maren,

Rajca Suchada,

Rajca Andrzej

Publication year - 2010

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.201002811

Subject(s) - diradical , singlet state , triplet state , chemistry , ground state , photochemistry , singlet fission , spin (aerodynamics) , dimer , molecule , atomic physics , excited state , physics , thermodynamics , organic chemistry

Spin cycle : A high‐spin nitrogen‐centered (aminyl) diradical with a triplet ( S =1) ground state (see picture) has a large singlet‐triplet energy gap (Δ E ST ). Effective shielding of the reactive aminyl radical centers provides stability at room temperature and maintains the planarity of the π system required for the triplet ground state and large Δ E ST value. The diradical assembles in solution to form a π‐dimer‐like structure with weak exchange coupling.

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