Coexistence of two distinct axial ligands and their thermo-induced substitution in trans-[FeL2(NCS)2][FeL2(CH 3OH)2](NCS)2 (L = 4-amino-3-(p-chlorophenyl)-5- (2-pyridyl)-1,2,4-triazole)

Lei Wang, Jing Jing Jiang, Lang Chen, Xuan Shen, Dun Ru Zhu

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摘要

A novel iron(II) complex, trans-[FeL2(NCS)2][FeL 2(CH3OH)2](NCS)2 (1) with 4-amino-3-(p-chlorophenyl)-5-(2-pyridyl)-1,2,4-triazole (L) has been successfully synthesized and characterized. X-ray crystallography analysis shows that 1 is the first example in the mononuclear triazole-based complexes consisting of two distinct molecules: trans-[FeL2(NCS)2] and trans-[FeL2(CH3OH)2](NCS)2 with each octahedral iron(II) center coordinated axial by two NCS- ions in Fe1 but two MeOH molecules in Fe2. Moreover, 1 can lose two MeOH molecules at 220 C to form trans-[FeL2(NCS)2] (2) which can be transformed to 1 when recrystallizing 2 in methanol. Both 1 and 2 are high-spin species in the range of 1.8-300 K.

源语言英语
页(从-至)104-108
页数5
期刊Inorganic Chemistry Communications
28
DOI
出版状态已出版 - 2月 2013

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