Photochemical Study of 2-(6-methoxynaphthalen-2-yl)Propanoic Acid Chromium(III) in Different Organic Solvents | ||
| Misan Journal of Acodemic Studies | ||
| Article 1, Volume 15, Issue 29, June 2016, Pages 25-33 | ||
| Authors | ||
| Farah M. Ibrahim; Dhuha H. Fadhil; Zainab A. Hussain; Emad A. Yousif | ||
| Abstract | ||
| Abstract The photochemistry of chelate complex 2-(6-methoxynaphthalen-2-yl)propanoic acid chromium (III) Cr(L)3 was studied in three polar aprotic solvents: Dimethyl sulfoxide (DMSO), Dimethylformamide (DMF), Acetone (Ac). Monochromatic light of wavelength 311 nm was used for the irradiation processes at 25 oC. Uv-visible spectral changes indicates an intra oxidation-reduction reaction occuring during the photolysis of Cr(L)3 complex, with homolytic scission of Cr- L bond. The quantum yield (d), rate of photodecomption and reactivity ratio (k2/k-1) were determined in each solvent. These values always increase as the polarity of the solvent increases and follow the order: DMSO > DMF > AC . Mechanism of photodecomposition of this complex under the applied conditions was proposed. | ||
| Keywords | ||
| Photochemistry; Spectroscopy; Chromium; solvents | ||
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