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Formation and Spectral Characterization of Cu(II)-poly(L-ornithine) Complexes

Formation and Spectral Characterization of Cu(II)-poly(L-ornithine) Complexes

C V Phan, L Tosi, A Garnier

Bioinorg Chem. 1978;8(1):21-31.

PMID: 23868

Abstract:

Cu(II)-Poly-(1-ornithine) complexes in aqueous solution have been studied using potentiometric titration and absorption and circular dichroism spectra. As in the case of Cu(II)-poly(L-arginine) complexes studied previously, two types of compounds have been detected, labeled complexes I and II. Complex I contains two amine nitrogens and two water molecules coordinated to the copper. Complex II, two amine and two amide nitrogens. Amide nitrogen coordination confers optical activity to the copper d-d transitions. Furthermore, amine and amide nitrogen coordination to the copper are characterized by charge transfer transitions at 250 and 320 nm respectively which were already identified in Cu(II)-poly(L-arginine) systems.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP27378490-B	Poly-L-ornithine solution		27378-49-0	Price

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