Product Details of 1452-77-3. 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: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Structure and NMR properties of the dinuclear complex di-μ-azido-κ4N1:N1-bis[(azido-κN)(pyridine-2-carboxamide-κ2N1,O)zinc(II)]. Author is Pastor Ramirez, Candida; Bernes, Sylvain; Hernandez Anzaldo, Samuel; Reyes Ortega, Yasmi.
The new diamagnetic complex, [Zn2(N3)4(C6H6N2O)2] or [Zn2(pca)2(μ1,1-N3)2(N3)2] was synthesized using pyridine-2-carboxamide (pca) and azido ligands, and characterized using various techniques: IR spectroscopy and single-crystal X-ray diffraction in the solid state, and NMR (NMR) in solution The mol. is placed on an inversion center in space group P [inline formula omitted] . The pca ligand chelates the metal center via the pyridine N atom and the carbonyl O atom. One azido ligand bridges the two symmetry-related Zn2+ cations in the end-on coordination mode, while the other independent azido anion occupies the fifth coordination site, as a terminal ligand. The resulting five-coordinate Zn centers have a coordination geometry intermediate between trigonal bipyramidal and square pyramidal. The behavior of the title complex in DMSO solution suggests that it is a suitable NMR probe for similar or isostructural complexes including other transition-metal ions. The diamagnetic nature of the complex is reflected in similar 1H and 13C NMR chem. shifts for the free ligand pca as for the Zn complex.
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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem