TY - JOUR
T1 - Field-Induced Single-Ion Magnetic Behavior in Two Mononuclear Cobalt(II) Complexes
AU - Cui, Y.
AU - Xu, Y.
AU - Liu, X.
AU - Li, Y.
AU - Wang, B.-L.
AU - Dong, Y.
AU - Li, W.
AU - Lei, S.
PY - 2019
Y1 - 2019
N2 - The employment of a new rigid N-tridentate ligand, bis(1-chloroimidazo[1,5-a]pyridin-3-yl)pyridine (bcpp), in the construction of cobalt(II) single-ion magnets is reported. Two cobalt(II) complexes, [Co(bcpp)Cl2] (1) and [Co(bcpp)Br2] (2), have been prepared and characterized. Single-crystal XRD analyses reveal that complexes 1 and 2 are isostructural. They are pentacoordinated mononuclear cobalt(II) compounds with expected trigonal bipyramidal geometry. Both analysis of the magnetic data and ab initio calculations reveal easy-plane magnetic anisotropy (D>0) for 1 and 2. Detailed alternating current magnetic susceptibility measurements reveal the occurrence of slow magnetic relaxation behavior for the cobalt(II) centers of 1 and 2; thus indicating that both complexes are field-induced single-ion magnets.
AB - The employment of a new rigid N-tridentate ligand, bis(1-chloroimidazo[1,5-a]pyridin-3-yl)pyridine (bcpp), in the construction of cobalt(II) single-ion magnets is reported. Two cobalt(II) complexes, [Co(bcpp)Cl2] (1) and [Co(bcpp)Br2] (2), have been prepared and characterized. Single-crystal XRD analyses reveal that complexes 1 and 2 are isostructural. They are pentacoordinated mononuclear cobalt(II) compounds with expected trigonal bipyramidal geometry. Both analysis of the magnetic data and ab initio calculations reveal easy-plane magnetic anisotropy (D>0) for 1 and 2. Detailed alternating current magnetic susceptibility measurements reveal the occurrence of slow magnetic relaxation behavior for the cobalt(II) centers of 1 and 2; thus indicating that both complexes are field-induced single-ion magnets.
UR - https://hdl.handle.net/1959.7/uws:66824
U2 - 10.1002/asia.201900258
DO - 10.1002/asia.201900258
M3 - Article
SN - 1861-471X
VL - 14
SP - 2620
EP - 2628
JO - Chemistry: An Asian Journal
JF - Chemistry: An Asian Journal
IS - 15
ER -