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Conformation and optical activity of copper(II) complexes with L-aminoacids in the visible region

✍ Scribed by A. Decinti; G. Larrazábal

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
551 KB
Volume
18
Category
Article
ISSN
0020-1693

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✦ Synopsis

The Cotton effect of d-d transitions of copper complexes with optically active aminoacids in aqueous media is qualitatively analyzed in terms of conformational models by means of a simple one-electron MO treatment. The results are dependent on the kind of puckering through which the chelate ring attains a definite conformation (k or k').

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Cytosine Iog Kf k' CMP Iog Kf k' No metal \_ \_ \_ 4.60 \_ 2.69 0.46 0.36 MgW) N.A. 4.1 1.97 2.44 N.A. 0.39 1.75 0.26 Ni(I1) 1.47 4.87 2.84 2.57 N.A. 0.49 1.9 0.32 al(H) 2.68 9.39 3.18 3.48 2.0 0.46 N.A. 0.45 A&I) N.A. <20 N.A. 4.26 1.16 N.A.