Preparation and characterization of the first coordination compounds of tetrazol-2-ylacetic acid
摘要:
Tetrazol-2-ylacetic acid (2-TzaH) was found to react with CuCl2, PdCl2, and K2PtCl4 in water giving Cu(2-Tza)(2), PdCl2(2-TzaH)(2)center dot 2H(2)O and PtCl2(2-TzaH)(2), correspondingly. Obtained complexes, being the first reported examples of coordination compounds derived from 2-TzaH, have been characterized by IR spectroscopy, thermal and X-ray diffraction methods. 2-TzaH was found to act as a monodentate ligand coordinated to the metal ion via N4 atom of heteroring in palladium complex and as tridentate bridging ligand coordinated via N4 atom and two oxygen atoms in copper complex. Cu(2-Tza)(2) presents 2D coordination polymer, whereas PdCl2(2-TzaH)(2)center dot 2H(2)O is molecular complex. (C) 2010 Elsevier B.V. All rights reserved.