Isolation and Crystallographic Characterization of a Solid Precipitate/Intermediate in the Preparation of 5-Substituted 1H-Tetrazoles from Nitrile in Water

Abstract

The reactions of 2-, 3-, and 4-cyanopyridine with NaN(3) in the presence of H(2)O and Lewis acid (ZnCl(2)) afford discrete monomer, (2-PTZ)(2)Zn(H(2)O)(2) (1), 3D diamondoid-like network (3-PTZ)(2)Zn (2), and 2D layered network (4-PTZ)Zn(OH)(H(2)O) (3), respectively (PTZ = 5-(pyridyl)tetrazolato). Their solid state structures and natures give new insight into the Sharpless reaction of 5-substituted 1H-tetrazole. Interestingly, 2 crystallizes in a noncentrosymmetric space group and its powdered sample is second-harmonic generation active.

Advances in synthesis of tetrazoles coordinated to metal ions

“…This approach was developed in a number of studies describing the synthesis of tetrazole-containing complexes under hydrothermal conditions (Scheme 12). [62][63][64][65] According to data of X-ray diffraction, in these complexes multidentate ligands coordinate to metal atoms through different nitrogen atoms (N1, N2, N3, N4) of tetrazolyl groups what leads to formation of polymeric structures. The composition and the structure of complexes obtained can be varied depending on the reagents ratio and also on the acidity of the reaction mixture.…”

Synthesis, crystal structure and luminescent properties of a novel cadmium coordination polymer with unprecedented one-dimensional hetero-triple-stranded chain

“…The construction of supramolecular architectures is currently of great interest due to their intriguing network topologies and interesting electric, magnetic, catalytic and optical properties [1][2][3][4][5][6][7]. The structural motifs of coordination polymers depend on the coordination geometry of the central atom, the geometry and flexibility of ligand molecules, the coordinated (and/or noncoordinated) counter ions and the reaction conditions.…”

“…1). The crystal structure of 1 contains two independent cadmium atoms, the S-bonded octahedral Cd(SCN) 6 and N-bonded octahedral Cd(NCS) 3 (bbta) 3 . Each SCN À anion acts as bidentate bridging ligand using g 2 :l-SCN coordination mode to bind two cadmium atoms.…”

Two novel manganese coordination polymers containing both double-stranded chain and single chain or double-stranded chain

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Reaction of bis(1,2,4-triazol-1-yl)ethane (bte), MnSO 4 Á H 2 O with KNCS or NaN(CN) 2 yields two novel polymers [Mn(gauchebte) 2 (NCS) 2 ] n Á [Mn(anti-bte)(H 2 O) 2 (NCS) 2 ] n (1) which contains both double-stranded chain and single chain and both the gauche and anti conformations bte, and forms three-dimensional hydrogen bond network, and {Mn(gauche-bte) 2 [N(CN) 2 ] 2 } n (2) which contains double-stranded chain.There has been intense research effect on the synthesis and characterization of coordination networks with novel topologies in recent years [1][2][3][4][5][6][7]. The designing of coordination polymers is highly influenced by several factors such as the metal coordination preference, the structural characteristics of the polydentate organic ligand, the metal-ligand ratio, the solvent system and the counterion.

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“…There has been intense research effect on the synthesis and characterization of coordination networks with novel topologies in recent years [1][2][3][4][5][6][7]. The designing of coordination polymers is highly influenced by several factors such as the metal coordination preference, the structural characteristics of the polydentate organic ligand, the metal-ligand ratio, the solvent system and the counterion.…”