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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 57, Number 4
JKCSEZ 57(4)
August 20, 2013 
 
Title
 Spectral and Geometrical Study of Two Cadmium Complexes, mer-R,S-[Cd(aepn)2]X2 (X: I-, Cl-, aepn: N-(2-Aminoethyl)-1,3-propanediamine) Supported by Solution Experiments
Author
 Mohammad Hakimi*, Zahra Mardani, Keyvan Moeini
Keywords
 Cadmium complex, Chiral center, Diastereomer, Cyclic voltammetry, X-ray crystal structure
Abstract
 In this research, two new complexes of N-(2-aminoethyl)-1,3-propanediamine (aepn), [Cd(aepn)2]I2 (1) and [Cd(aepn)2]Cl2 ·H2O (2), were prepared and identified by elemental analysis, FT-IR, Raman spectroscopy and single-crystal Xray diffraction. Geometry around the cadmium atom in two complexes by coordination of six nitrogen atoms of two aepn is distorted octahedral. If distortion in the mer-[Cd(aepn)2]2+ cation is disregarded, it has a C2 axis and C2 symmetry. The cyclic voltammetry experiments were carried out to study the complexation process. Two structural surveys on coordination modes and complexes of aepn are presented. A study was carried out using CSD data to estimate the averages of bond lengths for different types of the Cd-N bonds. It was found that the intermolecular N-H···I, C-H···I hydrogen bonds in 1 and N-H···Cl, N- H···O, C-H···O, O-H···Cl in 2 stabilized the crystal networks.
Page
 447 - 454
Full Text
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