Details

Autor(en) / Beteiligte

• Wang, Yu-Fang
• Wang, Li-Ya
• Ma, Lu-Fang

Titel

Synthesis, Crystal Structures and Magnetic Properties of Copper(II) Complexes with Nitronyl Nitroxide Radicals

Ist Teil von

• Zeitschrift für anorganische und allgemeine Chemie (1950), 2008-01, Vol.634 (1), p.181-185

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2008

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Two new copper(II) compounds with imino nitroxide radicals [Cu(IM‐MeImz)2 · (SCN)] 0.5[Cu(SCN)4] (1) and [Cu(IM‐MeImz)2 · (SCN)]ClO4 · H2O (2) (IM‐meImz = 2‐(5‐methylimidazol‐4‐yl)‐4,4,5,5‐tetramethyl‐2‐imidazoline‐1‐oxyl) have been synthesized and characterized structurally and magnetically. X‐ray analysis demonstrates that complex 1 contains CuII ions in both square‐pyramidal and square planar coordination. There are complete charge separation into [Cu(IM‐MeImz)2(SCN)]+ cations and 0.5[Cu(SCN)4]− anions, in a 2:1 ratio. The complex 1 was connected as a one‐dimensional polymer by intermolecular interactions. In complex 2, the coordination around the copper atom is distorted square pyramidal and the apical position is occupied by one nitrogen atom of SCN− anion. The 2‐D network structure was formed and arranged through intermolecular H‐bonds interactions. The complex 1 exhibits intramolecular weak ferromagnetic coupling between CuII ion and the radicals.