Reactivity of pyrrole pigments, XIX. On the structure of Cu(II) and Zn(II) chelates of dipyrrins in solution

• DOI: 10.1007/bf00807032
• Publication Date: 2004-12-14T00:46:40Z
• Authors: A. Jaum�; J. -A. Farrera; J. M. Rib�
• Keywords: Reactivity; Pyrrole

The Cu(II) and Zn(II) chelates of 1,2,3,7,9-pentamethyldipyrrin and 1,2,3,7,9-pentamethyl-8-sulfodipyrrin are studied. When metal acetates are used for the formation of the metal complexes, dipyrrinate metal acetates could be detected as precursors of thebis-dipyrrinates.