An extended 1D network formed by complementary hydrogen bonding between Pt(IV)-complexed tetrazoles

The first metal complex containing the N1-ligated tetrazole, viz., trans-[PtCl4(5-Me-4H-tz-κN1)2] (1), has been prepared by the reaction between trans-[PtCl4(EtCN)2] and 5-methyltetrazole and characterized by elemental analyses, FAB+-MS, IR, and 1H, 13C{1H}, 195Pt NMR spectroscopies and also by X-ray diffraction. In the solid state, 1 displays a novel type of complementary hydrogen-bonding between the –NH– and –Nmoieties of the heterocycles from the neighbouring molecules, thus forming an extended 1D network.

Reaction of trans-[PtCl4(EtCN)2] with 5-methyl-1H-tetrazole in MeNO2 solution leads to the formation of the first metal complex containing the N1-ligated tetrazole, viz., trans-[PtCl4(5-Me-4H-tz-κN1)2], which displays in the solid state a novel type of complementary hydrogen-bonding between the –NH– and –N moieties of the heterocycles from the neighboring molecules, thus forming an extended 1D network.Figure optionsDownload as PowerPoint slide