Two Zinc(II) Coordination Polymers of Tetrazolate‐5‐carboxylate with Self‐penetrating Three‐dimensional Nets: Synthesis, Structure, and Luminescence Properties

Two coordination compounds of the ligand tetrazolate‐5‐carboxylate (tzc) with zinc(II), namely, [Zn 2 (tzc) 2 (bpp)] ( 1 ) and [Zn 2 (tzc) 2 (bpea)] ( 2 ) [bpp = 1,3‐bis(4‐pyridyl)propane, bpea = 1,2‐bis(4‐pyridyl)ethane] were synthesized by hydrothermal methods involving the in situ generation of the ligand from sodium ethyl tetrazolate‐5‐carboxylate. Both compounds 1 and 2 exhibit a three‐dimensional structure with 3,4‐connected self‐penetrating net topology in which two‐dimensional Zn II ‐tzc layers are interlinked by the bpp or bpea spacers, with the tzc ligand being in the μ 3 ‐N1,O1:N4,O2:N2 coordination mode. The luminescence properties of 1 and 2 were also investigated.