TY - JOUR
T1 - Syntheses, structures and magnetic properties of a stable nitronyl nitroxide radical and two Tb(III)-radical complexes
AU - Zhang, Yuan
AU - Han, Tian
AU - Liu, Xiao Qing
AU - Yu, Ao
AU - Cheng, Peng
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - The stable radical 2-(4-oxidopyridyl)-4,4,5,5-tetramethylimidazolin-1-oxyl-3-oxide (PyNONIT, 1) was isolated and structurally characterized. Using PyNONIT as ligand, two terbium(III) complexes {[Tb(hfac)3(PyNONIT)]2}2·2CH2Cl2 (2·2CH2Cl2) and [Tb(hfac)3(PyNONIT)]2[Tb(hfac)3(H2O)2] (3, hfac = hexafluoroacetylacetonate), were successfully synthesized. Different reaction conditions lead to different coordination geometries of the lanthanide ions, which are quite important for magnetochemistry. The single crystal X-ray diffraction analyses indicated that eight-coordinate geometries of central lanthanide ions in 2·2CH2Cl2 and 3 are distorted square-antiprism (D4d) and triangular dodecahedron (D2d), respectively. The magnetic properties of 1, 2 (a desolvated sample of 2·2CH2Cl2) and 3 have also been studied.
AB - The stable radical 2-(4-oxidopyridyl)-4,4,5,5-tetramethylimidazolin-1-oxyl-3-oxide (PyNONIT, 1) was isolated and structurally characterized. Using PyNONIT as ligand, two terbium(III) complexes {[Tb(hfac)3(PyNONIT)]2}2·2CH2Cl2 (2·2CH2Cl2) and [Tb(hfac)3(PyNONIT)]2[Tb(hfac)3(H2O)2] (3, hfac = hexafluoroacetylacetonate), were successfully synthesized. Different reaction conditions lead to different coordination geometries of the lanthanide ions, which are quite important for magnetochemistry. The single crystal X-ray diffraction analyses indicated that eight-coordinate geometries of central lanthanide ions in 2·2CH2Cl2 and 3 are distorted square-antiprism (D4d) and triangular dodecahedron (D2d), respectively. The magnetic properties of 1, 2 (a desolvated sample of 2·2CH2Cl2) and 3 have also been studied.
KW - Crystal structure
KW - Magnetic property
KW - Nitronyl nitroxide radical
KW - Terbium(III) complex
UR - https://www.scopus.com/pages/publications/84927670649
U2 - 10.1016/j.inoche.2015.04.004
DO - 10.1016/j.inoche.2015.04.004
M3 - 文章
AN - SCOPUS:84927670649
SN - 1387-7003
VL - 57
SP - 1
EP - 3
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
ER -