A new series of Fe(II) SCO complexes [Fe(C6mtz)6](X)2, where C6mtz is 1-(cyclohexyl- methyl)-1H-tetrazole ligand and X is non-coordinating anion (BF4 , ClO4 , or PF6 ), have been synthesized and investigated. The SCO behavior of the small counter-anions BF4 , ClO4 was compared with that of the compound with larger counter-anion PF6 , and they were found to be considerably different. The PF6 compound shows a spin transition at T1/ 2 = 213 K, a considerably higher spin transition temperature (~90 K) than the compounds with the smaller counter-anion BF4 (T1/2 = 126 K) and ClO4 (T1/2 = 119 K).
Synthesis and characterization of a family of Fe(II) tetrazole complexes [Fe(C<inf>6</inf>mtz)<inf>6</inf>]X<inf>2</inf> (X = BF<inf>4</inf><sup>-</sup>, ClO<inf>4</inf><sup>-</sup>, PF<inf>6</inf><sup>-</sup>) / Tafili-Kryeziu, Myrvete; Caneschi, Andrea; Fittipaldi, Maria; Spina, Gabriele; Lantieri, Marco; Weil, Matthias; Hasegawa, Miki; Linert, Wolfgang. - In: JOURNAL OF COORDINATION CHEMISTRY. - ISSN 0095-8972. - STAMPA. - 68:(2015), pp. 3457-3471. [10.1080/00958972.2015.1077951]
Synthesis and characterization of a family of Fe(II) tetrazole complexes [Fe(C6 mtz)6 ]X2 (X = BF4 -, ClO4 -, PF6 -)
CANESCHI, ANDREA;FITTIPALDI, MARIA;SPINA, GABRIELE;LANTIERI, MARCO;
2015
Abstract
A new series of Fe(II) SCO complexes [Fe(C6mtz)6](X)2, where C6mtz is 1-(cyclohexyl- methyl)-1H-tetrazole ligand and X is non-coordinating anion (BF4 , ClO4 , or PF6 ), have been synthesized and investigated. The SCO behavior of the small counter-anions BF4 , ClO4 was compared with that of the compound with larger counter-anion PF6 , and they were found to be considerably different. The PF6 compound shows a spin transition at T1/ 2 = 213 K, a considerably higher spin transition temperature (~90 K) than the compounds with the smaller counter-anion BF4 (T1/2 = 126 K) and ClO4 (T1/2 = 119 K).
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