Recommanded Product: 14389-12-9. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Crystal structure of tetraaquabis(4-(5-tetrazolato)pyridyl-N)copper(II) tetrahydrate, Cu(H2O)4(C6H4N5)2·4H2O. Author is Wang, Ji-Wu; Guo, Jin-Xin; Fu, Feng; Li, Dong-Sheng; Wang, Ji-Jiang; Zhang, Mei-Li.
Crystallog. data and at. coordinates are given. The copper atom is coordinated in a distorted octahedral manner and trans-connected to two 4-PTZ anions [d(Cu-N) = 2.034(4) Å] and four mols. of water [d(Cu-O1) = 1.947(4), d(Cu-02) = 2.482(4) Å]. The remaining four water mols. act as lattice water mols. Within the equatorial plane, the sum of the bond angles around the Cu atom is 360 °. The apical O2-Cu-O2′ bond angle is 180 °. In the supramol. complex, the eight water mols. and the noncoordinating N atoms of the tetrazolato ligands form an extensive H-bonding system. All the water form strong H bonds between themselves or with the noncoordinating N atoms of the tetrazolato ligands occur strong H bonds. So, a two-dimensional network structure is constructed by hydrogen bonding interactions. Moreover, a three-dimensional network structure is formed by the face-to-face π-π interactions of the pyridine ring and the tetrazolate ring ligands belonging to adjacent dimeric units with distances of about 3.45 Å.
Different reactions of this compound(5-(4-Pyridyl)-1H-tetrazole)Recommanded Product: 14389-12-9 require different conditions, so the reaction conditions are very important.
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