Initial use of 1,1′-oxalyldiimidazole for inorganic synthesis: Decomposition of the ligand as a means to the preparation of an imidazole- and oxalate(-2)-containing, 1D copper(II) complex
Date
2009Author
Stamatatos, Theocharis C.Perlepes, Spyros P.
Raptopoulou, Catherine P.
Psycharis, Vassilis P.
Patrickios, Costas S.
Tasiopoulos, Anastasios J.
Boudalis, Athanassios K.
ISSN
1387-7003Source
Inorganic Chemistry CommunicationsVolume
12Issue
5Pages
402-405Google Scholar check
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The use of 1,1′-oxalyldiimidazole, (im)COCO(im), for the synthesis of coordination complexes is explored for the first time. The [Cu2(O2CMe)4(H2O)2]/(im)COCO(im) reaction system in 96% EtOH yields the new, 1D coordination polymer [Cu(ox)(Him)2]n (1), where Him is the neutral imidazole and ox2- is the oxalate(-2) ligand. A mechanism for the hydrolytic decomposition of the ligand is proposed. Complex 1 comprises neutral, zigzag chains with the η1:η1:η1:η1: μ (2.1111 using Harris notation) ox2- ligand bridging two neighboring CuII centers two cis Him groups complete a Jahn-Teller distorted octahedral geometry at the metal. The dc, variable-temperature magnetic susceptibility data for the complex reveal antiferromagnetic CuII⋯CuII exchange interactions. © 2009 Elsevier B.V. All rights reserved.