1-(Furan-2-ylmethyl)-1H-tetrazole (fmt), prepared by heterocyclization of furfurylamine with triethyl orthoformate and sodium azide, was found to react with copper(II) perchlorate, nitrate, and bromide giving complexes [Cu(fmt) 4 (H 2 O) 2 ](ClO 4 ) 2 , [Cu(fmt) 3 (NO 3 ) 2 (H 2 O)], and [Cu 2 (fmt) 4 Br 4 ], respectively. The obtained crystalline complexes and fmt were characterized by X-ray diffraction, thermal analyses, and IR spectroscopy. In the complexes, fmt acts as a monodentate ligand coordinated via the tetrazole ring N 4 * Dr. S. V. Voitekhovich Fax: +37-5172264696 E-Mail: azole@tut.by [a]
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