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Title SOME METAL CHELATES OF ETHYLENEDIAMINETETRAACETIC ACID, DIETHYLENETRIAMINEPENTAACETIC ACID, AND TRIETHYLENETETRAMINEHEXAACETIC ACID
Creator/Author Sievers, R.E. ; Bailar, J.C. Jr.
Publication Date1962 Feb 01
OSTI IdentifierOSTI ID: 4808413
Other Number(s)CODEN: INOCA; 0020-1669
Resource TypeJournal Article
Resource RelationInorganic Chemistry (U.S.); Vol: 1
Research OrgUniv. of Illinois, Urbana
SubjectCHEMISTRY; ABSORPTION; ACETIC ACID; BINDING ENERGY; CARBONYLS; CHELATES; CONFIGURATION; EDTA; ELECTRIC CHARGES; GRAIN SIZE; INFRARED RADIATION; IONS; LATTICES; METALS; MOLYBDENUM COMPLEXES; ORGANOMETALLICS; OXYGEN; SPECTRA; THORIUM COMPLEXES
Description/Abstract The properties and structural characteristics of some metal chelates of ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, and triethylenetetraminehexaacetic acid are reported. For chelates of 33 different metal ions, a correlation is observed between the charge/ size ratio of the metal ion and the degree of covalency in the metal-oxygen bond. The infrared spectra of chelates of metal ions having charge/size ratios larger than 3.6 exhibit carbonyl absorption maxima in the 1625 to l650 cm/sup -1/ region, but in complexes were the ratio is below 3.6 the maxima occur between 1590 and 1615 cm/sup -1/. A Th (IV) complex, in which diethylenetriaminepentaacetic acid apparently functions as an octodentate ligand, was isolated. Syntheses of binuclear Mo(V) complexes of diethylenetriaminepentaacetic acid and triethylenetetraminehexaacetic acids are reported. (auth)
LanguageEnglish
FormatPages: 174-82
System Entry Date2001 Jun 03

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