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Synthesis and Metal Complex Formation of Nitrogen‐Oxygen Donor Macrocyclic Ligands
Author(s) -
Gok Yasar,
Yildiz S. Zeki
Publication year - 1994
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19946200536
Subject(s) - chemistry , sodium borohydride , acrylonitrile , yield (engineering) , ligand (biochemistry) , macrocyclic ligand , cobalt , nickel , metal , medicinal chemistry , ethanol , elemental analysis , magnetic susceptibility , nitrogen , copper , polymer chemistry , inorganic chemistry , crystallography , organic chemistry , polymer , copolymer , materials science , catalysis , biochemistry , receptor , metallurgy
Reduction of 2,3:9,10‐dibenzo‐5,12‐diaza‐1,8‐dioxacylotetradecane‐5,11‐diene( 1 ) with sodium borohydride in ethanol generates 2,3:9,10‐dibenzo‐5,12‐diaza‐1,8‐dioxacyclotetradecane( 2 ) in high yield. The macrocyclic ligand 2,3:9,10‐dibenzo‐5,12‐diaza‐1,8‐dioxacyclotetradecane‐N,N′‐diacetic acid ( 3 ) has been synthesized and characterized. In addition, reaction of ( 2 ) with an excess of acrylonitrile gives 2,3:9,10‐dibenzo‐5,12‐diaza‐1,8‐dioxacyclotetradecane‐N,N′‐di(2‐cyanoethyl) ( 4 ). Several new complexes of these ligands with nickel(II), copper(II) and cobalt(II) have been prepared and identified. The structures of these complexes are proposed on the basis of elemental analysis, 1 H, 13 C‐NMR, IR, UV‐VIS spectra, magnetic susceptibility and conductivity data.