Structural studies of metalloporphyrins. 10. Complexes of water-soluble cobalt(III) porphyrins with amino acids: NMR study of the conformation of the complexes with cobalt(III) tetrakis[4-(N-methylpyridiniumyl)]porphine (CoTMPyP) and cobalt(III) tetrakis(4-carboxylatophenyl)porphine (CoTCPP)

Abstract

Structural Studies of Metalloporphyrins. 10.+ Complexes of Water-Soluble Cobalt(III) Porphyrins with Amino Acids: NMR Study of the Conformation of the Complexes with Cobalt(III) Tetrakis[4-(7V-methylpyridiniumyl)]porphine (CoTMPyP) and Cobalt(III) Tetrakis(4-carboxylatopheny 1) porphine (CoTCPP)*

Amino acids binding to Zn2+‐cyclen molecular receptor in aqueous solution

“…A number of papers have been dealing with design of the artificial supramolecular hosts for amino acids recognition (Mikros et al, 1991;Aldrich-Wright et al, 1997;Barboiu et al, 1997;Barboiu et al, 1999;Bazzicalupi et al, 2003;Gao et al, 2003;Imai et al, 2004;Wang et al, 2004;Kruppa et al, 2006;Ochiai et al, 2008;Wang et al, 2009). Barboiu et al (1997) isolated a series of complexes between L-amino acids and a macrocyclic receptor composed of a dibenzo-18-crown-6 unit endowed with two protonated 10-aminodecylcarbonyl side arms in the solid state.…”

“…The metal-porphyrins as artificial receptors for amino acids or peptides have been introduced in several papers (Mikros et al, 1991;Wang et al, 2004;Ochiai et al, 2008). The cobalt(III) porphyrins of general formula Co(P)(L) 2 , where P ¼ tetrakis [4-(N-methylpyridiniumyl)]porphine (TMPyP) or tetrakis(4-carboxylatophenyl)porphine (TCPP) and L ¼ amino acid, have been studied in water solution by 1 H NMR spectroscopy.…”

Utilization of IR spectral detailed analysis for coordination mode determination in novel Zn–cyclen–aminoacid complexes

“…Therefore, a number of papers have been dealing with the design of the artificial model hosts for aminoacid binding with the aim to understand the enzymatic reaction mechanism [3][4][5][6][7][8][9][10][11][12][13]. Hereby, Zn 2+ -cyclen complexes were discovered as useful artificial receptors of living celullar biomolecules.…”

Chiral recognition of amines and amino acid derivatives by optically active ruthenium Halterman porphyrins in organic solvents and water

“…This is in a complete agreement with previously reported 1 H NMR results with other ruthenium porphyrins previously reported by us 11 and diamagnetic cobalt porphyrins. [18][19][20] A representative spectrum of a ruthenium complex obtained after the addition of an excess (8 equiv) of (S)-1-phenyl ethylamine is shown in Figure 2A.…”