Author/Authors :
Fuess، Hartmut نويسنده , , Ehrenberg، Helmut نويسنده , , Boa، Roman نويسنده , , Gembicky، Milan نويسنده , , Herchel، Radovan نويسنده , , Haase، Wolfgang نويسنده , , Jager، Lothar نويسنده , , Wagner، Christoph نويسنده ,
Abstract :
Triethylenetetramine (L4) was used as a tetradentate blocking ligand that, after complexation with NiII, leaves two sites ready for ligation with tricyanomethanide. The formed binuclear complex [L4Ni(NCC(CN)CN)2NiL4](ClO4)2 exhibits a ferromagnetic coupling with J/hc = +0.15 cm^-1 and gNi = 2.126; below 16 K, a ferromagnetic ordering is evidenced by ac magnetic susceptibility (both in-phase and out-of-phase), magnetization, field-cooled magnetization, and zero-field-cooled magnetization measurements.