Effect of non-magnetic organic cation (A) on the magnetic properties of ANiII[FeIII(ox)3], A = N(n- C4H9)4+ and N(n-C3H7)4+

The effect of the non-magnetic organic cation A on the magnetic properties of molecule based material ANi(II)[Fe-III(ox)(3)] with A = N(n-C4H9)(4)(+) and N(n-C3H7)(4)(+) has been measured in the temperature range of 5-300 K under different conditions. The compounds are ferrimagnetic with T-N = 28 and 25 K, respectively. Spin-glass-like states have been observed below T-N The M-ZFC(T) and M-FC(T) plots branch out at T-branch and this branching, represented by a power law, is highly magnetic field dependent. The non-magnetic cation A plays an important role in determining the magnetic exchange interaction and the disordered states below T-N (C) 1999 Published by Elsevier Science Ltd. AU rights reserved.