A Schiff base expanded porphyrin macrocycle that acts as a versatile binucleating ligand for late first-row transition metals.
The coordination chemistry of the Schiff base polypyrrolic octaaza macrocycle 1 toward late first-row transition metals was investigated. Binuclear complexes with the divalent cations Ni(II), Cu(II), and Zn(II) and with the monovalent cation Cu(I) were prepared and characterized. Air oxidation of the Cu(I) ions in the latter complex to their divalent oxidation state resulted in a change in the coordination mode relative to the macrocycle.
Sessler
Jonathan L
JL
Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712-0165, USA.
Tomat
Elisa
E
Mody
Tarak D
TD
Lynch
Vincent M
VM
Veauthier
Jacqueline M
JM
Mirsaidov
Utkir
U
Markert
John T
JT
D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008024:Ligands; D008968:Molecular Conformation; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D011166:Porphyrins / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry; D028561:Transition Elements / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
D008024:Ligands; D009942:Organometallic Compounds; D011166:Porphyrins; D012545:Schiff Bases; D028561:Transition Elements; D003300:Copper; D009532:Nickel; D015032:Zinc