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Spin Canting in a Cobalt(II) Radical Complex with an Acentric Counter Anion (Eur. J. Inorg. Chem. 31/2008)
Author(s) -
Mitsumoto Kiyotaka,
Shiga Takuya,
Nakano Motohiro,
Nihei Masayuki,
Nishikawa Hiroyuki,
Oshio Hiroki
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200890086
Subject(s) - acentric factor , chemistry , spin canting , cobalt , crystallography , ferromagnetism , spin (aerodynamics) , tetramethylurea , condensed matter physics , inorganic chemistry , magnetization , organic chemistry , solvent , magnetic field , physics , quantum mechanics , aerospace engineering , engineering
The cover picture shows that cobalt(II) diradical complexes with centric and acentric counter anions, [CoCl(bisimpy)(MeOH) 2 ]X (X = PF 6 and ClO 4 ), crystallize in the centrosymmetric and polar space groups of P 2 1 c and Pna 2 1 , respectively. The PF 6 – salt is paramagnetic down to 1.8 K, whereas the ClO 4 – salt shows a weak ferromagnetic long‐range order with metamagnetic behavior at 1.8 K. Spin canting can arise from single‐ion magnetic anisotropy and/or antisymmetric exchange interaction (Dzyaloshinsky–Moriya interaction). The noncentrosymmetric space group of the latter complex is compatible with both mechanisms. Details are discussed in the Short Communication by H. Oshio et al. on p. 4851 ff.