Preparation and Characterization of Nickel(Ⅱ) and Copper(Ⅱ) Tetaaza Macrocyclic Complexes with Isonicotinate Ligands

The complexes [Ni(L)(INT)2]${\cdot}$5H2O (1) and [Cu(L)(H2O)](Cl)(INT)${\cdot}$3H2O (2) (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,01.18 ,07.12 ]docosane, INT = isonicotinate) have been prepared and characterized by X-ray crystallography, electronic absorption, and cyclic voltammetry. The cr...

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Bibliographic Details
Published in:Bulletin of the Korean Chemical Society 2002, Vol.23 (8), p.1062-1066
Main Authors: Choi, Ki-Young, Kim, Moon-Jip, Kim, Dae-Sue, Kim, Yong-Son, Kim, Jae-Hyun, Ryu, Hai-Il, Lim, Youn-Mook, Kang, Seung-Gu, Shin, Ueon-Sang, Lee, Kyu-Chul, Hong, Choon-Pyo
Format: Article
Language:Korean
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Summary:The complexes [Ni(L)(INT)2]${\cdot}$5H2O (1) and [Cu(L)(H2O)](Cl)(INT)${\cdot}$3H2O (2) (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,01.18 ,07.12 ]docosane, INT = isonicotinate) have been prepared and characterized by X-ray crystallography, electronic absorption, and cyclic voltammetry. The crystal structure of 1 reveals an axially elongated octahedral geometry with two axial isonicotinate ligands. The electronic spectra, magnetic moment, and redox potentials of 1 also show a high-spin octahedral geometry. However, 2 shows that the coordination environment around the copper atom is a distorted square-pyramid with an axial water molecule. The spectra and electrochemical behaviors of 2 are also discussed.
ISSN:0253-2964
1229-5949