| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1309706 | Inorganica Chimica Acta | 2009 | 8 Pages |
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.
Graphical abstractTwo 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 full-size imageDownload as PowerPoint slide
