A diversity of hydrogen bond motifs in the crystal structures of nickel(II) and copper(II) complexes with N-arylalkyliminodiacetamides (CROSBI ID 217627)
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Smrečki, Neven ; Kukovec, Boris-Marko ; Đaković, Marijana ; Popović, Zora
engleski
A diversity of hydrogen bond motifs in the crystal structures of nickel(II) and copper(II) complexes with N-arylalkyliminodiacetamides
The reactions of N-arylalkyl derivatives of iminodiacetamide (Bnimda, Peimda, Ppimda ; Bn = benzyl, Pe = 2-phenylethyl ; Pp = 3-phenylprop-1-yl) with nickel(II) and copper(II) salts in aqueous solutions were investigated. Four new nickel(II) complexes and three new copper(II) complexes[Ni(Bnimda)2](NO3)2∙2H2O(1), [Ni(Peimda)2](NO3)2 (2), [Ni(Peimda)2]SO4∙2H2O (3), [Ni(Ppimda)2](NO3)2∙4H2O(4), [Cu(Bnimda)2](NO3)2∙H2O (5), [Cu(Peimda)2](NO3)24H2O (6) and [Cu(Ppimda)2](NO3)2 (7) were prepared and characterized by infrared spectroscopy and thermal analysis (TG/DTA). The distorted octahedral coordination environments around the nickel(II) and copper(II) ions in complexes 1, 2, 3, 5 and 6 consist of two O, N, O’-tridentate N-arylalkyliminodiacetamide ligands, with imino N atoms in trans-position. Various hydrogen bond motifs were found in the crystal structures of these complexes – trimeric, tetrameric, pentameric and hexameric ring motifs. These motifs were formed by the amide moieties and by the oxoanions (nitrate or sulfate) and water molecules.
Nickel(II); Copper(II); Iminodiacetamide; Crystal structure; Hydrogen bond motifs
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