title: NMR evidence of pentaoxo organosilicon complexes in dilute neutral aqueous silicate solutions.
abstract: Silicon-29 NMR spectra of a neutral, dilute aqueous silicic acid solution, with a pH and Si concentration typical of soil solutions, reveal that a significant fraction of the silicon is incorporated in two five-coordinated organosilicon complexes when sodium gluconate is present.
authors.affiliation: Department of Chemistry, Lakehead University, Thunder Bay, ON P7B5E1, Canada. Stephen.Kinrade@lakeheadu.ca
authors.forename: S D
authors.initials: SD
authors.lastname: Kinrade
authors.forename: A S
authors.initials: AS
authors.lastname: Schach
authors.forename: R J
authors.initials: RJ
authors.lastname: Hamilton
authors.forename: C T
authors.initials: CT
authors.lastname: Knight
mesh_terms: D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D017646:Organosilicon Compounds / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*; D012825:Silicon; D012996:Solutions / Q000737:chemistry; D014867:Water
chemical_list: D017646:Organosilicon Compounds; D017640:Silicates; D012996:Solutions; D014867:Water; D012825:Silicon