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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 2
BKCSDE 19(2)
February 20, 1998

Title	Copper(Ⅱ) Complexation by 2-((3-((2-Hydroxy-1,1-di(hydroxymethyl)ethyl)amino)propyl)amino)-2-(hydroxymethyl)-1,3-propanediol in Aqueous Solution
Author	Kyung Hee Hong, Kyu Sun Bai*
Keywords
Abstract	The complex formation from Cu(Ⅱ) ion and 1,3-bis(tris(hydroxymethyl)methylamino)propane (bistrispropane) in aqueous solution has been studied potentiometrically and spectrophotometrically. Bistrispropane (btp) coordinates to Cu(Ⅱ) as multidentate. In the btp (L) complex CuL2+, two of the hydroxyl oxygen atoms as well as the amine nitrogens of the ligand are coordinated. In neutral and weakly acidic media, one of the coordinated hydroxyl groups is deprotonated. In basic media, an additional hydroxyl group undergoes deprotonation. The equilibrium constants for the formation of CuL2+, CuLH-1+, and CuLH-2 have been determined. The nature of the coordinate bonds has been deduced from the potentiometric data and the spectra of these complexes.
Page	197 - 201
Full Text	PDF

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