A study of solid nickel gluconates

Abstract

Structures are proposed for nickel gluconate Ni(C₆H₁₁O₇)₂,2H₂O and nickel hydroxygluconate Ni₂(OH)₂(C₆H1₀O7)₂2H₂O on the basis of infrared spectra, visible reflectance spectra, magnetic properties, and thermal decomposition behaviour. The nickel(11) ion is present; in both cases in the high spin state and a distorted octahedral environment. The hydroxy compound is considered to be a polymer containing hydroxy and aquo bridges.