Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 9, 2004
Previous Article Next Article

Unexpected formation of a copper(ii) 12-metallacrown-4 with (S)-glutamic-γ-hydroxamic acid: a thermodynamic and spectroscopic study in aqueous solution

Author affiliations

Abstract

The equilibria of copper(II) with (S)-glutamic-γ-hydroxamic acid (H2L) were investigated in aqueous solution by different techniques: glass electrode potentiometry; calorimetry; VIS and CD spectrophotometry; and ES-MS. An unexpected pentacopper(II) 12-metallacrown-4 [Cu5L4H−4]2− was detected, analogous to those well known formed by α- and β-aminohydroxamic acids, but of lower stability. Another five species were found: [CuLH]+; [CuL2H2]; [Cu2L2]; [CuL2H]; and [CuL2]2−. Their structures are proposed based on both spectroscopic and calorimetric data.

Graphical abstract: Unexpected formation of a copper(ii) 12-metallacrown-4 with (S)-glutamic-γ-hydroxamic acid: a thermodynamic and spectroscopic study in aqueous solution

Back to tab navigation

Article information


Submitted
19 Dec 2003
Accepted
04 Mar 2004
First published
24 Mar 2004

Dalton Trans., 2004, 1329-1333
Article type
Paper

Unexpected formation of a copper(II) 12-metallacrown-4 with (S)-glutamic-γ-hydroxamic acid: a thermodynamic and spectroscopic study in aqueous solution

M. Tegoni, F. Dallavalle, B. Belosi and M. Remelli, Dalton Trans., 2004, 1329
DOI: 10.1039/B316607D

Social activity

Search articles by author

Spotlight

Advertisements