Ternary complexes between adenosine 5′-triphosphoric acid, 2, 2′-bipyridyl and the divalent metal ions manganese(II), cobalt(II), copper(II), and zinc(II). Preparation and physicochemical properties

Add time:09/01/2019    Source:sciencedirect.com

A series of ternary complexes between adenosine 5′-triphosphoric acid (ATP), 2, 2′-bipyridyl, and the transition metal ions manganese(II), cobalt(II), copper(II), and zinc(II) in the ratio 1:1:1 have been prepared. The solid compounds are crystalline and can be formulated as [M(II)-H2ATP-2, 2′-Bipyridyl]2·4H2O (MATPbipy).X-ray powder patterns show them to be all isomorphous. Potentiometric titrations in aqueous solutions are in agreement with the presence of two ionizable protons. Ultraviolet and visible spectra, epr, and magnetic susceptibility measurements suggest that the metal ions have a high-spin distorted octahedral coordination. From infrared spectra it can be deduced that ATP coordinates to the metal only through the oxygen atoms of the phosphate groups.These compounds, which are particularly stable towards hydrolysis, form possible models for ATP transport in biological fluids.

We also recommend Trading Suppliers and Manufacturers of triphosphoric acid, zinc salt (cas 18428-70-1). Pls Click Website Link as below: cas 18428-70-1 suppliers

Prev:A novel dressing for the combined delivery of platelet lysate and Vancomycin hydrochloride (cas 1404-93-9) to chronic skin ulcers: Hyaluronic acid particles in alginate matrices
Next:The complexometric analysis of pyro- and triphosphates—I: Stability constants of the proton and metal complexes of the acids)