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- W2090242238 abstract "Resonance Raman spectra have been determined for the μ-peroxo complex [(en)2CoO2Co(en)2]4+ and μ-peroxo-μ-hydroxo complex [(en)2CoO2(OH)Co(en)2]3+, where en = ethylenediamine. The spectra show bands at 799 and 795 cm−1, assigned to the ν(OO) mode in each complex, respectively, while the ν(CoO) mode occurs at ∼590 cm−1. However, two strong bands occur at 494 and 534 cm−1 in the spectrum of the μ-peroxo complex and only one strong, broad band at 530 cm−1 occurs in the spectrum of the μ-peroxo-μ-hydroxo complex. These are assigned to ν(CoN) modes in both complexes. The spectra of the complexes [(L-his)2CoO2Co(L-his)2] and [(L-his)2CoO2(OH)Co(L-his)2]− show bands at 811 and 805 cm−1 assigned to the ν(OO) mode, respectively, while the ν(CoO) mode is assigned at 600 and 590 cm−1, respectively. The ν(CoN) modes in both complexes are assigned at 530 and 493 cm−1. These bands are much stronger in the spectrum of the μ-peroxo than in that of the μ-peroxo-μ-hydroxo complexes. However, the obvious differences between the Raman spectra of the μ-peroxo and μ-peroxo-μ-hydroxo complexes are not in the ν(OO) and ν(CoO) bands but rather in the lower wavenumber ν(CoN) region. The ν(OO) band intensity excitation profiles demonstrate that the O2−2 →Co3+ charge transfer transition occurs at ∼352 and 360 nm for [(en)2CoO2Co(en)2]4+ and [(en)2CoO2(OH)Co(en)2]3+, respectively, and at 366 nm for the [(L-his)CoO2(OH)Co(L-his)]− complex." @default.
- W2090242238 created "2016-06-24" @default.
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- W2090242238 date "1981-04-01" @default.
- W2090242238 modified "2023-10-14" @default.
- W2090242238 title "Resonance Raman studies of transition metal peroxo complexes: 7-The peroxo-dicobalt(III)-ethylenediamine and L-histidine complexes" @default.
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- W2090242238 doi "https://doi.org/10.1002/jrs.1250110204" @default.
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