Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15369
Title: Syntheses and characterization of copper(II) and cobalt(II) complexes with tris[2-(benzylamino)ethyl]amine
Authors: Xie, YS
Jiang, H
Liu, XT
Zhou, ZY
Liu, QL
Xu, XL
Keywords: Cobalt(II) complexes
Copper(II) complexes
Crystal structure determination
Tren derivative
Tripodal ligands
X-Ray diffraction
Issue Date: 2002
Publisher: Inst Organic Chem And Biochem
Source: Collection of czechoslovak chemical communications, 2002, v. 67, no. 11, p. 1647-1657 How to cite?
Journal: Collection of Czechoslovak Chemical Communications 
Abstract: Two mononuclear complexes [Cu(NCS)(trenb)]ClO 4 (1) and [Co(NCS)(trenb)]Cl·H 2O (2), where trenb is tris[2-(benzylamino)ethyl]amine, were prepared and characterized by elemental analysis, IR, electronic and EPR spectra. Their crystal structures were determined by X-ray diffraction. Complexes 1 and 2 are both five-coordinated with their metal centers in the distorted trigonal-bipyramidal environment. Each metal(II) ion coordinates with the tetradentate trenb, and one isothiocyanate anion. The two complexes are not isostructural as there are also a chloride and a water molecule in the asymmetric unit of 2. Besides balancing the charge, the chlorides are also involved in intramolecular and intermolecular hydrogen bonds with the secondary amine groups, resulting in a one-dimensional chain structure. UV-VIS spectrum and EPR measurement for 1 have unambiguously confirmed that the five-coordinated structure is retained in solution, even in the donating solvent such as DMF.
URI: http://hdl.handle.net/10397/15369
ISSN: 0010-0765
DOI: 10.1135/cccc20021647
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