COA of Formula: C6H5N5. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Synthesis and structures of 5-(pyridyl)tetrazole complexes of Mn(II). Author is Lin, Ping; Clegg, William; Harrington, Ross W.; Henderson, Richard A..
New MnII complexes containing 5-(2-pyridyl)tetrazole, 5-(3-cyano-4-pyridyl)tetrazole or 5-(4-pyridyl)tetrazole ligands are described. The complexes were prepared by reaction of the corresponding cyanopyridines with sodium azide in the presence of MnII salts. All the complexes were characterized by x-ray crystallog., which reveals that 5-(pyridyl)tetrazole ligands can coordinate to Mn through either type of nitrogen atom in the tetrazole residue or via the pyridyl group. In the solid state, extended 2-dimensional and 3-dimensional structures are produced through networks of hydrogen bonding (involving water mols. and the tetrazolate residue). Acidification of the complexes produces the corresponding free 5-(pyridyl)-1H-tetrazole.
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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