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Structure–Magnetism Relationship in [Ti III ‐OTi III ] 4⊕ Complexes
Author(s) -
Bodner Axel,
Drueke Stefan,
Wieghardt Karl,
Nuber Bernhard,
Weiss Johannes
Publication year - 1990
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.199000681
Subject(s) - magnetism , diamagnetism , magnetic moment , crystallography , unpaired electron , spin (aerodynamics) , atomic orbital , atom (system on chip) , atomic physics , center (category theory) , chemistry , physics , electron , electron paramagnetic resonance , condensed matter physics , nuclear magnetic resonance , magnetic field , nuclear physics , quantum mechanics , thermodynamics , computer science , embedded system
The temperature‐independent magnetic moment in complex 1 corresponds almost exactly to the spin‐only value of one unpaired electron per Ti III center, whereas 2 is diamagnetic. This is attributed to the fact that the [TiOTi] 4⊕ unit in 1 is very likely linear, while in 2 it is bent (122.7°). Other than in 2 the d xy 1orbitals in 1 cannot overlap, and a spin‐spin coupling is therefore ruled out here (L = N,N′,N ′‐trimethyl‐1,4,7‐triazacyclononane).