| 1 | Author | Luigi Sportelli, H. Arald Neubacher, Wolfgang Lohmann | Requires cookie* |
| Title | N O T I Z E N On the Influence of Arom atic R esidues on the Interaction of Copper (II) w ith Small P eptides Containing Arom atic Am ino Acids: ESR and Optical Studies  | ||
| Abstract | The complexation behaviour of C u(II) with di-and tri peptides containing the aromatic amino acids phenylalanine or tryptophan has been investigated at different pH-values and compared with results obtained with di-and triglycine. The results obtained by means of ESR and optical absorp tion spectroscopy show an influence of the two different aromatic entities on the magnetic and optical param eters. A significant decrease of the < 7||-value and, concom ittantly, an increase of the energy of the d-d transition was m easured when an aromatic entity is present in the peptide. A possible explanation for this observation is given. | ||
| Reference | (Z. Naturforsch. 32c, 643 [1977]; received May 4 1977) | ||
| Published | 1977 | ||
| Keywords | Copper (II)-Complexes, Peptides, Aromatic Amino Acids, Optical Absorption | ||
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