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EPR spectra of some Cu(II)—dipeptide complexes for high pH aqueous solutions

✍ Scribed by Henryk Kozowski

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 366 KB
Volume: 46
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)80643-x

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✦ Synopsis

~rthurhonlbj~ I-'PR spectra have been obccrvcd for Cu(tI) -dipeptrdc complc~scs at ptt 12-13.5. It is suggested tkat breaking of the meal-c~rbo~yl bond and influence of the stdechsins are responszble for the symmetry Iowcrmg from &h to Czh in the Cuttt)iL(~~t)2 1 Zmmplex. TIIC CPR spectra of the solutront with great ligdnd excess are of a..i,d Fymmetry for the CutI&GLY-ASPA and Cu(II)-GLY--TYK systems and orthorhombic for Cu(II)-GLY-GLUA. The stcric effects JZC the cww that only for Cu(ll)-GLY -ASPA ~,lu tions rt I-2 molar ratio u)mplcx cm be formed, ~n.aIogicaI to Cu(II)-(GLY-GLY)F in solution5 witfl a great lrgand e\cets

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