A polyolefin composition containing a novel 2-pyridylthiozinc-oxide complex, hexakis(2-pyridylthio)tetrazinc monooxide, has resistance against thermal and oxidative deterioration, particularly against deterioration caused by contact with heavy metals. Various processes for the preparation of said complex are also disclosed.
In a food conveying resin belt in which its conveying face is formed with a resin layer, an antibacterial and antifungal agent composition containing bis-(2-pyridylthio-1-oxido)-zinc as its active ingredient is included in the resin layer. High antibacterial and antifungal effects can be obtained by bis-(2-pyridylthio-1-oxido)-zinc.
Electrochemical synthesis of pyridine-2-thionato complexes of zinc(II) and cadmium(II): the crystal structure of 1,10-phenanthroline-bis(pyridine-2-thionato)zinc(II)
Zinc and cadmium pyridine-2-thionato complexes, M(pyt)2, were prepared by direct electrochemical oxidation of the metal into a solution of pyridine-2-thione (pytH) in acetonitrile. Adducts of type [M(pyt)2L] (L = 2,2'-bipyridine or 1,10-phenanthroline) were obtained by addition of the ligand to the electrolyte phase. X-ray structure determination of [Zn(pyt)2phen] shows the molecule to have a distorted octahedral trans-ZnS2N4 core, with average bond distances of 2.182 angstrom for Zn-N(phen), 2.061 angstrom for Zn-N(pyt) and 2.586 angstrom for Zn-S. The vibrational, H-1 and C-13 NMR spectra of the compounds are discussed.