TY - JOUR
T1 - A new copper(II)-iron(II) complex [Cu(acac)(bpy)(py)]2[Fe(CN)5(NO)] based on nitroprusside
T2 - Synthesis, structure and spectroscopic studies
AU - Kou, Hui Zhong
AU - Gao, En Qing
AU - Liao, Dai Zheng
AU - Cheng, Peng
AU - Jiang, Zong Hui
AU - Yan, Shi Ping
AU - Wang, Geng Lin
AU - Yao, Xin Kan
AU - Wang, Hong Gen
AU - Tuchagues, J. P.
PY - 1999/8
Y1 - 1999/8
N2 - A new complex [Cu(acac)(bpy)(py)]2[Fe(CN)5(NO)] (acac-=acetylacetonate, py=pyridine, bpy=2,2′-bipyridine) has been prepared and investigated by single-crystal X-ray analysis, IR (infrared), EPR (electron paramagnetic resonance) and Mössbauer spectroscopy, and variable-temperature magnetic susceptibility. The structure consists of two [Cu(acac)(bpy)(py)]+ cations and one [Fe(CN)5(NO)]2- anion. It crystallizes in space group P1̄ with cell parameters a=9.963(3), b=10.485(2), c=11.749(2) Å, α=111.35(2), β=96.18(2), γ=95.43(2)°. The structure refined to a final R-value of 0.045 for 2103 observed reflections [I≥3σ(I)]. The copper(II) atoms are in a distorted square-based pyramidal geometry with two oxygen atoms of the acac- ligand and two nitrogen atoms of the bpy ligand lying in the basal plane and one nitrogen atom of py occupied in the apical position, Mössbauer and magnetic susceptibility studies evidence the low-spin state of the iron(II) metal center. EPR spectroscopy and magnetism show the operation of weak magnetic interactions in the solid state, which may be transmitted through the π-stacking interactions between the bpy ligands of adjacent [Cu(acac)(bpy)(py)]2[Fe(CN)5(NO)] constitutive units.
AB - A new complex [Cu(acac)(bpy)(py)]2[Fe(CN)5(NO)] (acac-=acetylacetonate, py=pyridine, bpy=2,2′-bipyridine) has been prepared and investigated by single-crystal X-ray analysis, IR (infrared), EPR (electron paramagnetic resonance) and Mössbauer spectroscopy, and variable-temperature magnetic susceptibility. The structure consists of two [Cu(acac)(bpy)(py)]+ cations and one [Fe(CN)5(NO)]2- anion. It crystallizes in space group P1̄ with cell parameters a=9.963(3), b=10.485(2), c=11.749(2) Å, α=111.35(2), β=96.18(2), γ=95.43(2)°. The structure refined to a final R-value of 0.045 for 2103 observed reflections [I≥3σ(I)]. The copper(II) atoms are in a distorted square-based pyramidal geometry with two oxygen atoms of the acac- ligand and two nitrogen atoms of the bpy ligand lying in the basal plane and one nitrogen atom of py occupied in the apical position, Mössbauer and magnetic susceptibility studies evidence the low-spin state of the iron(II) metal center. EPR spectroscopy and magnetism show the operation of weak magnetic interactions in the solid state, which may be transmitted through the π-stacking interactions between the bpy ligands of adjacent [Cu(acac)(bpy)(py)]2[Fe(CN)5(NO)] constitutive units.
UR - https://www.scopus.com/pages/publications/0011643251
U2 - 10.3891/acta.chem.scand.53-0542
DO - 10.3891/acta.chem.scand.53-0542
M3 - 文章
AN - SCOPUS:0011643251
SN - 0904-213X
VL - 53
SP - 542
EP - 546
JO - Acta Chemica Scandinavica
JF - Acta Chemica Scandinavica
IS - 8
ER -