Synthesis and structure of {[Zn(1,2-di(1,2,3,4-tetrazol-2-yl)ethane)3](ClO4)2}n. The first coordination polymer based on 2-substituted tetrazole

A 1,2-bis(tetrazol-2-yl)ethane (ebtz) was prepared by alkylation of 1H,2,3,4-tetrazole. The new ligand was characterised crystallographically and by IR and 1H NMR spectroscopy. First coordination polymer based on 2-substituted tetrazole of the formula {[Zn(ebtz)3](ClO4)2}n was synthesised. The molecular structure of macrocation consists of zinc(II) ions triple stranded by N4, N4′ coordinating ebtz molecules resulting in formation of one dimensional chain. The zinc(II) ion is surrounded octahedrally by six nitrogen atoms from tetrazole rings. The noncoordinated perchlorate anions are located in channels, which are placed between polycationic chains.