TY - JOUR
T1 - Structure and magnetic properties of a 3d-4f CoIII 2DyIII4 cluster
AU - Jhan, Siang Yu
AU - Huang, Siang Hua
AU - Yang, Chen I.
AU - Tsai, Hui Lien
N1 - Funding Information:
The authors acknowledge the National Science Council of Taiwan for financial support under grant NSC 99-2113-M-006-003-MY3.
PY - 2013
Y1 - 2013
N2 - Structural determination and magnetic studies of a 3d-4f heterometallic hexanuclear [CoIII2DyIII4(μ 3-OH)2(salpa)4(NO3) 4(OAc)4(H2O)2] (1) cluster, where H2salpa = N-(2-hydroxybenzyl)-3-amino-1-propanol, are reported. Single-crystal X-ray diffraction studies reveal that the cluster contains a defect-dicubane central core composed of four DyIII ions, which are supported by two oxygen atoms from the acetate groups, two alkoxo groups and two μ3-OH groups, which are displaced above and below the Dy 4 plane. Moreover, the remaining CoIII ions are linked to the defect-dicubane core through two alkoxo groups and two phenoxido groups. Because of the presence of diamagnetic CoIII ions, the magnetic properties of complex 1 can be attributed to the presence of the four Dy III ions. Variable temperature direct current (dc) magnetic susceptibility measurements reveal spin-orbital coupling and/or antiferromagnetic interactions between the DyIII ions. Alternating current (ac) magnetic susceptibility measurements indicate that complex 1 exhibits slow magnetization relaxations.
AB - Structural determination and magnetic studies of a 3d-4f heterometallic hexanuclear [CoIII2DyIII4(μ 3-OH)2(salpa)4(NO3) 4(OAc)4(H2O)2] (1) cluster, where H2salpa = N-(2-hydroxybenzyl)-3-amino-1-propanol, are reported. Single-crystal X-ray diffraction studies reveal that the cluster contains a defect-dicubane central core composed of four DyIII ions, which are supported by two oxygen atoms from the acetate groups, two alkoxo groups and two μ3-OH groups, which are displaced above and below the Dy 4 plane. Moreover, the remaining CoIII ions are linked to the defect-dicubane core through two alkoxo groups and two phenoxido groups. Because of the presence of diamagnetic CoIII ions, the magnetic properties of complex 1 can be attributed to the presence of the four Dy III ions. Variable temperature direct current (dc) magnetic susceptibility measurements reveal spin-orbital coupling and/or antiferromagnetic interactions between the DyIII ions. Alternating current (ac) magnetic susceptibility measurements indicate that complex 1 exhibits slow magnetization relaxations.
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U2 - 10.1016/j.poly.2013.04.050
DO - 10.1016/j.poly.2013.04.050
M3 - Article
AN - SCOPUS:84887481922
SN - 0277-5387
VL - 66
SP - 222
EP - 227
JO - Polyhedron
JF - Polyhedron
ER -