Callaghan Innovation Research Papers

Back to Research Papers

TitleThe formation of manganese carboxylates from MnO and MnO2 and their application in lithium manganate precursors: X-ray crystal structure of manganese lactate trihydrate
Publication TypeJournal Article
Year of Publication2001
AuthorsKemmitt, T., Mills A.M., and Gainsford G.J.
JournalAustralian Journal of Chemistry
Pagination37 - 42
Date Published2001
ISSN00049425 (ISSN)
KeywordsAcids, Addition reactions, Alcohols, Aminoalcohols, Chemical analysis, crystal structure, Esterification, Lithium manganate, Manganese carboxylates, Manganese compounds, Manganese lactate trihydrate, Polyesterification, Pyrolysis, X ray crystallography, X ray powder diffraction
AbstractA series of manganese carboxylates were prepared by reacting aqueous solutions of glycolic, lactic, oxalic, malonic, malic, tartaric or citric acids with MnO or MnO2 at 50-70°C. A single-crystal X-ray structure of racemic manganese(II) lactate trihydrate is presented. Addition of aminoalcohols to the carboxylate complexes increased their solubilities by forming manganese complex anions. Polyesterification of citrate carboxylate groups with the aminoalcohol hydroxyl groups resulted in a hard, homogeneous resin thereby demonstrating the potential for a wet chemical ceramic precursor route. LiMn2O4 spinel was prepared using a chemical pyrolysis technique from such a manganate precursor resin. Products were characterized with assistance from X-ray powder diffraction (XRD) and elemental analyses.

Back to top