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Organic Tri‐ and Tetraradicals with High‐Spin or Low‐Spin States
Author(s) -
Nau Werner M.
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199724451
Subject(s) - ferromagnetism , spin (aerodynamics) , condensed matter physics , coupling (piping) , singlet state , materials science , toolbox , physics , computer science , quantum mechanics , excited state , metallurgy , thermodynamics , programming language
The toolbox for spin coupling is now well equipped, since nearly all possible topologies of organic tri‐ and tetraradicals are known, which can be applied as building blocks for the synthesis of practically useful polyradical materials. High‐spin polyradicals could be useful as organic ferromagnets, whereas several low‐spin polyradicals are suggested to support electric conductivity. An example of the latter is the derivative of the singlet tetraradical 1 , in which both ferromagnetic and anti‐ferromagnetic coupling operate.