TY - JOUR
T1 - New alternating ferro- and antiferromagnetic one-dimensional complexes. Synthesis, characterization, crystal structure, and magnetic properties of [M(4,4'-dimethylbipyridine)(N3)2](n) [M = Cu(II), Mn(II), Ni(II), Fe(II)]
AU - Shen, Hao Yu
AU - Bu, Wei Ming
AU - Gao, En Qing
AU - Liao, Dai Zheng
AU - Jiang, Zong Hui
AU - Yan, Shi Ping
AU - Wang, Geng Lin
PY - 2000/2/7
Y1 - 2000/2/7
N2 - The preparation, X-ray crystal structure, and magnetic properties of alternating 1,1- and 1,3-azido-bridged copper(II) complex [Cu(4,4'-dmbpy)(N3)2](n) (1, 4,4'-dmbpy = 4,4'-dimethylbipyridine) have been reported. It crystallizes in triclinic system, space group P1, a = 7.9903(1) Å, b = 9.3545(9) Å, c = 10.754(2) Å, α = 113.485(1)°, β = 101.399(1)°, γ = 101.897(1)°, Z = 2. The magnetic properties of 1 have been investigated in the temperature range 1.5-300 K. Alternating antiferromagnetic (-J = 191.0 cm-1) interaction through a 1,3-N3- bridge and ferromagnetic (J = 297.1 cm-1) interaction through a 1,1-N3- bridge are obtained for 1 by analyzing the magnetic susceptibility data with the Hamiltonian H = -JΣ(S(2i)S (2i-1) - αS(2i)S(2i+1)). It's derivatives ({Mn(4,4'-dmbpy)(N3)2}(n) (2), {Ni(4,4'-dmbpy)(N3)2}(n) (3), and {Fe(4,4'-dmbpy)(N3)2}(n) (4) and the heterometallic derivatives {NiMn(4,4'-dmbpy)2(N3)4}(n) (5) and {CuMn(4,4'-dmbpy)2(N3)4}(n) (6) have also been synthesized and characterized by electronic and IR spectra. The X-ray powder diffraction and the magnetic properties of 6 have also been discussed.
AB - The preparation, X-ray crystal structure, and magnetic properties of alternating 1,1- and 1,3-azido-bridged copper(II) complex [Cu(4,4'-dmbpy)(N3)2](n) (1, 4,4'-dmbpy = 4,4'-dimethylbipyridine) have been reported. It crystallizes in triclinic system, space group P1, a = 7.9903(1) Å, b = 9.3545(9) Å, c = 10.754(2) Å, α = 113.485(1)°, β = 101.399(1)°, γ = 101.897(1)°, Z = 2. The magnetic properties of 1 have been investigated in the temperature range 1.5-300 K. Alternating antiferromagnetic (-J = 191.0 cm-1) interaction through a 1,3-N3- bridge and ferromagnetic (J = 297.1 cm-1) interaction through a 1,1-N3- bridge are obtained for 1 by analyzing the magnetic susceptibility data with the Hamiltonian H = -JΣ(S(2i)S (2i-1) - αS(2i)S(2i+1)). It's derivatives ({Mn(4,4'-dmbpy)(N3)2}(n) (2), {Ni(4,4'-dmbpy)(N3)2}(n) (3), and {Fe(4,4'-dmbpy)(N3)2}(n) (4) and the heterometallic derivatives {NiMn(4,4'-dmbpy)2(N3)4}(n) (5) and {CuMn(4,4'-dmbpy)2(N3)4}(n) (6) have also been synthesized and characterized by electronic and IR spectra. The X-ray powder diffraction and the magnetic properties of 6 have also been discussed.
UR - https://www.scopus.com/pages/publications/0034614876
U2 - 10.1021/ic990338y
DO - 10.1021/ic990338y
M3 - 文章
AN - SCOPUS:0034614876
SN - 0020-1669
VL - 39
SP - 396
EP - 400
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 3
ER -