Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Inorganica Chimica Acta called Three-dimensional bimetallic oxides constructed from molybdophosphonate chains and secondary-metal/4-pyridyltetrazole components, Author is Jones, Stephanie; Darling, Kari; Zubieta, Jon, which mentions a compound: 14389-12-9, SMILESS is C1(C2=NN=NN2)=CC=NC=C1, Molecular C6H5N5, Quality Control of 5-(4-Pyridyl)-1H-tetrazole.
The hydrothermal reactions of molybdenum(VI) oxide, 1,2-ethylenediphosphonic acid, 4-pyridyltetrazole (4-Hpt) and the appropriate metal acetate yielded three-dimensional bimetallic oxides [Mx(4-Hpt)y(H2O)z{Mo5O15(O3PCH2CH2PO3)}]·nhydrate (M = Co or Ni, x = 2, y = 2, z = 6; M = Cu, x = 4, y = 3, z = 1). The Co(II) and Ni(II) phases are isomorphous with structures constructed from the common {Mo5O15(O3PCH2CH2PO3)}n4n- chains linked through binuclear {M2(4-Hpt)2(H2O)6}4+ subunits to provide the three-dimensional connectivity. The Cu(I) species consists of the molybdophosphonate chains embedded in a framework of Cu(I) tetrahedra linked through the tetrazole N donors of the 4-Hpt ligands.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis