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The new bistetrazole 13 has been obtained by subsequent formation of the two heterocyclic units. In methanolic solution 13 reacts with zinc(II) acetate to yield the pseudo-meso-1 D-coordination polymer [ZnL 2 (MeOH)] n  (n = ∞) 14. The structure of 14 was established by single crystal X-ray diffraction. The generation of the polymeric chain 14 is understandable, if intermediate formation of coordinatively unsaturated zinc(II) buildingblocks (Δ)-15 and (Λ)-15 is assumed. Alternating linkage of the self-complementary chiral monomers 15, across one cyanofunction each, leads to 14 with zinc being essentially octahedrally coordinated. Compared with polymeric compounds of similar bridging ligands, the Zn ··· N≡C-distance in 14 (225,7 pm) is short.

zeitschrift für naturforschung b

Synthese und Koordinationschemie eines neuartigen Bistetrazols: Ein 1D-Metallopolymer durch Selbstorganisation koordinativ ungesättigter Zink(II)-M4onomere [1] / Synthesis and Coordination Chemistry of a New Bistetrazole: A 1D-Metallopolymer via Self-Assembly of Monomeric Zinc(II)-Buildingblocks