کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1309706 | 975218 | 2009 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Two new Fe(II) spin crossover complexes with tetrazol-1-yl-cycloalkane ligands Two new Fe(II) spin crossover complexes with tetrazol-1-yl-cycloalkane ligands](/preview/png/1309706.png)
Two new 1-(tetrazol-1-yl)cycloalkanes [Cntz] with n = 5 and 6 were synthesised as ligands for iron(II) spin crossover complexes. Just recently, the [Fe(C3tz)6](BF4)2 showed that the rigid cyclopropyl-substituent of the tetrazole yielded a rather abrupt and complete spin transition at T½ ≈ 190 K [1]. Aiming for a deeper insight into the factors governing the spin transition behavior such as abruptness and spin transition temperature we synthesized the two new homologous complexes [Fe(C5tz)6](BF4)2 and [Fe(C6tz)6](BF4)2 which were characterized by XRPD, magnetic susceptibility measurements, DSC, 57Fe-Mössbauer, UV–Vis–NIR and MIR spectroscopy. The magnetic and structural properties of both [Fe(Cntz)6](BF4)2 with n = 5 and 6 are also compared with the [Fe(C3tz)6](BF4)2 and its structural peculiarities are discussed.
Two new ligands 1-(tetrazol-1-yl)cycloalkanes [Cntz] with n = 5 and 6 were synthesised. Aiming for a deeper insight into the factors governing the spin transition behavior we synthesized their new homologous complexes [Fe(C5tz)6](BF4)2 and [Fe(C6tz)6](BF4)2 and characterized magnetic and structural properties of both [Fe(Cntz)6](BF4)2 with n = 5 and 6.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 362, Issue 10, 1 August 2009, Pages 3629–3636