کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1307377 975135 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A bis(chlorido)-bridged linear-chain Cu(II) compound with 7-azaindole as an axial ligand; synthesis, structure, hydrogen bonding and magnetism
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
A bis(chlorido)-bridged linear-chain Cu(II) compound with 7-azaindole as an axial ligand; synthesis, structure, hydrogen bonding and magnetism
چکیده انگلیسی

A novel linear bis(chlorido)-bridged Cu(II) compound with the ligand 7-azaindole (abbreviated as Haza) have been synthesized and fully characterized by spectroscopy, EPR and X-ray structure analysis. The geometry around the Cu(II) ion in the compound [Cu–μ-Cl2(Haza)2]n, is distorted octahedral with the basal plane formed by two chloride anions with a Cu–Cl distance of 2.286(1) Å and two nitrogen atoms of two trans-chelating Haza ligands with a Cu–N distance of 2.042(4) Å. The apical positions is formed by two chloride anions of a neighbouring unit at a distance of 3.143(2) Å. The Cu–Cl–Cu angle is 90.09(5)°, while the Cu–Cu distance is 3.8890(8) Å.The EPR powder spectrum appears as rhombic, displaying some extra features which were assigned to the differences in orientation of chains in the lattice, as their intensity appears to decrease on powdering. The magnetic susceptibility measurements, recorded from 5 to 300 K, agree with a very weak antiferromagnetic interaction in a chain with J = −2.6 cm−1.

An unusual Cu chain with asymmetric double chlorido bridges and axial 7-azaindole ligands is reported, with hydrogen bonding and magnetic properties.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 361, Issue 5, 1 April 2008, Pages 1463–1468
نویسندگان
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