TY - JOUR
T1 - Spin states of mono- and dinuclear iron(II) complexes with bis(imidazolylimine) ligands
AU - Fujita, Kunihiro
AU - Kawamoto, Ryohei
AU - Tsubouchi, Ryohei
AU - Sunatsuki, Yukinari
AU - Kojima, Masaaki
AU - Iijima, Seiichiro
AU - Matsumoto, Naohide
PY - 2007/10/5
Y1 - 2007/10/5
N2 - Bis(imidazolylimine) ligands, H 2L H and H 2L Me, were prepared from hydrazine and 4-formylimidazole or 2-methyl4-formylimidazole (1:2), respectively. Mononuclear iron(II) complexes, [Fe(H 2L H) 2](ClO 4) 2·MeOH and [Fe(H 2L Me) 2]-(ClO 4) 2·2H 2O, were in the LS and HS states, respectively, in the temperature range 5-300 K. A triple-helicate [Fe 2-(H 2L H) 3] (ClO 4) 4, showed an abrupt [LS-HS] to [HS-HS] spin transition at 240K, while [Fe 2(H 2L Me) 3](ClO 4) 4 remained in the LS state in the temperature range 5-300 K.
AB - Bis(imidazolylimine) ligands, H 2L H and H 2L Me, were prepared from hydrazine and 4-formylimidazole or 2-methyl4-formylimidazole (1:2), respectively. Mononuclear iron(II) complexes, [Fe(H 2L H) 2](ClO 4) 2·MeOH and [Fe(H 2L Me) 2]-(ClO 4) 2·2H 2O, were in the LS and HS states, respectively, in the temperature range 5-300 K. A triple-helicate [Fe 2-(H 2L H) 3] (ClO 4) 4, showed an abrupt [LS-HS] to [HS-HS] spin transition at 240K, while [Fe 2(H 2L Me) 3](ClO 4) 4 remained in the LS state in the temperature range 5-300 K.
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U2 - 10.1246/cl.2007.1284
DO - 10.1246/cl.2007.1284
M3 - Article
AN - SCOPUS:36048996321
VL - 36
SP - 1284
EP - 1285
JO - Chemistry Letters
JF - Chemistry Letters
SN - 0366-7022
IS - 10
ER -