V-shaped Fe3III and linear FeII/FeIII/FeII complexes supported by phenyl-pyridine-2-yl-methanone oxime ligand: Solvothermal syntheses, structures and magnetic property

被引：12
作者：
Chen, Wen-Qian [1 ]
Chen, Yan-Mei [1 ]
Lei, Tao [2 ]
Liu, Wei [1 ]
Li, Yahong [1 ,3 ]
机构：
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China
[2] Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
[3] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2012年 / 19卷
关键词：
Crystal structures; Multinuclear iron complexes; Solvothermal synthesis; In situ reaction; Magnetic properties; TRANSITION-METAL CHEMISTRY; COORDINATION CHEMISTRY; IRON(II) COMPLEXES; TETRANUCLEAR; CLUSTERS; CYTOTOXICITY; MANGANESE; ZN(II); CU(II); CORE;
D O I：
10.1016/j.inoche.2012.01.015
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Under solvothermal conditions, one polynuclear Fe-III complex of formula (Fe-3{(Py)C(Ph)O}(4)Cl-4}FeCl4] (1) was synthesized from reaction of phenyl-pyridine-2-yl-methanone oxime (py)C(ph)NOH with FeCl3, and one Fe-II/Fe-III/Fe-II complex of composition [Fe-3{(py)C(ph)NO}(6)][CH3COO] (2) was prepared from treatment of (Py)c(ph)NOH with Fe(OAc)(2). The most interesting synthetic feature of complex 1 is the in situ transformation of (py)C(ph)NOH into the (py)C(ph)O- ligand. Complexes 1 and 2 were characterized by X-ray single crystal diffraction, IR spectroscopy, and elemental analysis. X-ray analysis revealed that complex 1 contains a V-shaped Fe-III core with two terminal Fe atoms displaying distorted square-pyramidal geometries and one central Fe-III ion exhibiting octahedron geometry. Complex 2 is a mixed-valence linear Fe-II/Fe-III/Fe-II complex with all the three metal centers displaying distorted octahedron geometries. The low-temperature magnetic susceptibility measurement for the solid sample of 1 revealed the weak anti-ferromagnetic Fe-III center dot center dot center dot Fe-III interactions. Theoretical calculations based on density functional theory were performed using the crystal structure of complex 1. (C) 2012 Elsevier B.V. All rights reserved.
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页码：4 / 9
页数：6
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