TY - JOUR
T1 - Synthesis and magnetic properties of Fe-Mn-Cr multinuclear complexes with 4-amino-1,2,4-triazole and oxalate ligands
AU - Jahro, Iis Siti
AU - Onggo, Djulia
AU - Ismunandar, A.
AU - Rahayu, Susanto Imam
AU - Vertelman, Esther Jacoba Martha
AU - Van Koningsbruggen, Petra
PY - 2006
Y1 - 2006
N2 - A multinuclear Fe-Mn-Cr complex with 4-amino-1,2,4-triazole (NH2trz) and oxalate (ox) ligands has been synthesized successfully. The formula of the [Fe(NH2trz)3][ClO4][MnCr(ox)3].4H2O complex has been obtained based on the metal and C, H, N contents. The presence of water molecules, metal-ligand bonding and bridge ligand in the multinuclear complex has been confirmed by its infrared spectrum. The compound crystallizes in the hexagonal system with cell parameters of a = b = 18.695 Å and c = 57.351 Å. The compound shows a gradual spin crossover for iron(II) in the [Fe(NH2trz)3]2+ with transition temperature (T1/2) of 205 K. The antiferromagnetic interaction between Cr(III) and Mn(II) ions in the [MnCr(ox)3]n n- network is observed from the Weiss constant (θ) of –2.3 K.
AB - A multinuclear Fe-Mn-Cr complex with 4-amino-1,2,4-triazole (NH2trz) and oxalate (ox) ligands has been synthesized successfully. The formula of the [Fe(NH2trz)3][ClO4][MnCr(ox)3].4H2O complex has been obtained based on the metal and C, H, N contents. The presence of water molecules, metal-ligand bonding and bridge ligand in the multinuclear complex has been confirmed by its infrared spectrum. The compound crystallizes in the hexagonal system with cell parameters of a = b = 18.695 Å and c = 57.351 Å. The compound shows a gradual spin crossover for iron(II) in the [Fe(NH2trz)3]2+ with transition temperature (T1/2) of 205 K. The antiferromagnetic interaction between Cr(III) and Mn(II) ions in the [MnCr(ox)3]n n- network is observed from the Weiss constant (θ) of –2.3 K.
KW - [Fe(NH2trz)3]2+
KW - [MnCr(ox)3]n n-
KW - magnetic properties
KW - spin crossover
KW - antiferromagnetic
UR - https://jms.fmipa.itb.ac.id/ojs_3.0.2/index.php/jms/article/view/125
M3 - Article
SN - 0022-2941
VL - 11
SP - 95
EP - 99
JO - Journal of Natural Sciences and Mathematics
JF - Journal of Natural Sciences and Mathematics
IS - 3
ER -