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Macrocyclic High‐Spin ( S =2) Molecule: Spin Identification of a Sterically Rigid Metacyclophane‐Based Nitroxide Tetraradical by Two‐Dimensional Electron Spin Transient Nutation Spectroscopy
Author(s) -
Sawai Takatoshi,
Sato Kazunobu,
Ise Tomoaki,
Shiomi Daisuke,
Toyota Kazuo,
Morita Yasushi,
Takui Takeji
Publication year - 2008
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.200705583
Subject(s) - nutation , steric effects , spin (aerodynamics) , spectroscopy , electron , chemistry , molecule , multiplicity (mathematics) , crystallography , nitroxide mediated radical polymerization , chemical physics , molecular physics , physics , nuclear magnetic resonance , stereochemistry , quantum mechanics , geometry , organic chemistry , thermodynamics , mathematics , radical polymerization , copolymer , polymer
A spin quintet : The electronic and molecular structure of the metacyclophane‐based spin‐quintet tetraradical 1 with a sterically controlled rigid structure and small fine‐structure parameters is characterized. Pulse‐ESR based 2D electron spin nutation spectroscopy allows the spin multiplicity of 1 to be unequivocally identified, providing its fine‐structure parameters and g ‐values.