Study of copper(II) polyazamacrocyclic complexes by electronic absorption spectrophotometry and EPR spectroscopy

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Geraldes, CFGC (Author) Other; Marques, MPM (Author) Other; de Castro, B (Author) FCUP; Pereira, E (Author) FCUP

Journal

Title: European Journal of Inorganic Chemistry

Pages: 559-565

ISSN: 1434-1948

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 27 Citations

Scopus - 29 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-001-0NG

Abstract (EN): Copper(II) mononuclear complexes with the polyazamacrocyclic ligands NOTA (1,4,7-triazacyclononane-N,N',N "-triacetate), DOTA (1,4,7,10-tetraazacyclo-dodecane-N,N',N ",N'''-tetraacetate), NOTP [1,4,7-triazacyclononane-N,N',N "-tris(methylenephosphonate)] and DOTP [1,4,7,10-tetraazacyclododecane-N,N',N ",N'''-tetrakis(methylenephosphonate)] were characterised in aqueous solution by electronic absorption spectrophotometry and electron paramagnetic resonance (EPR) spectroscopy. While two isomeric species were detected by EPR spectroscopy in frozen samples of the polycarboxylate complexes, only one complex form was found for the poly(methylenephosphonate) systems. The results obtained are in accordance with a six-coordinate pattern for the metal centre, yielding tetragonally distorted complexes in solution, in agreement with previously reported studies on Cu-II complexes, both in solution and in the solid state.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7