Metal derivatives of tetrazoles

Abstract

Published data on the synthesis, structure, properties Published data on the synthesis, structure, properties and applications of metal derivatives of tetrazoles are generalised and applications of metal derivatives of tetrazoles are generalised and described systematically. Compounds based on the anionic and described systematically. Compounds based on the anionic and neutral tetrazole forms, and neutral tetrazole forms, C C-and -and N N-mono-and -mono-and C C, ,N N-disubsti--disubstituted tetrazoles are considered. The bibliography includes 464 tuted tetrazoles are considered. The bibliography includes 464 references references. . ReceivedDepending on the reaction conditions, meta-and para-5,5 Hphenyleneditetrazoles 25 react with Cd, Zn and Mn(II) salts to give essentially different, as regards both composition and structure, complexes 26, 27, 44 28, 45 29. 46 The structures of compounds 26 ± 29 were determined by X-ray diffraction. Compounds 26 ± 28 in which the doubly charged anions derived from tetrazole 25 function as bridges are two-and three-dimensional coordination polymers. Conversely, compound 29 is a mononuclear aqua complex containing no metal ± tetrazole coordination bond. In the structure of complex 28, one-dimensional channels were found which occupy up to 35% of the void volume and encapsulate tetrameric cyclic water clusters and DMF molecules. On heating to 150 8C, water and DMF are removed from the channels, which accounts for the interest of researchers in this type of compound for the preparation of inclusion compounds and sorbents. A coordination polymer with a composition similar to complex K + 7

CdS Nanoparticles Capped with 1-Substituted 5-Thiotetrazoles: Synthesis, Characterization, and Thermolysis of the Surfactant

“…Moreover, the tetrazole group is known as an important ligand in coordination chemistry. Its donor nitrogen atoms can bind to various metal ions leading to stable complexes with diverse coordination modes of the heteroring [11]. Here, we report the synthesis of CdS NPs capped with 1-R-5-thiotetrazoles using two different synthetic schemes: solution-phase (Scheme 1) and solventless single precursor approaches.…”

“…Moreover, the tetrazole group is known as an important ligand in coordination chemistry. Its donor nitrogen atoms can bind to various metal ions leading to stable complexes with diverse coordination modes of the heteroring [11].…”

“…This finding is understood in terms of various coordination modes of thiotetrazolate moiety at the surface of NPs. Binding can occur via sulfur or nitrogen or by both atoms simultaneously [11].…”

Advances in synthesis of tetrazoles coordinated to metal ions

“…For instance, complexes of Cu(II), Co(II), Ni(II), and Zn(II) containing in their composition as a ligand cefazolin antibiotic (in deprotonated form), show higher antibacterial activity in vitro with respect to some bacterial strains than the noncoordinated cefazolin. [2][3][4] Besides, tetrazoles may be used as components of filtering materials of the new generation for the purification of biological fluids (blood, lymph etc.) from heavy metals ions.…”

“…Main applications of the tetrazole metal derivatives are as follows: organic synthesis, gas-generating compositions, and some others. 1,2 One of the most important fields where tetrazole-containing coordination complexes are used is medical chemistry. The high physiological activity and low toxicity of tetrazoles makes it possible to regard their metal complexes as substances of versatile biochemical and pharmaceutical destination.…”