Najafpour Mohammad Mahdi, Feizi Hadi
Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
Center of Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
Sci Rep. 2019 May 16;9(1):7483. doi: 10.1038/s41598-019-43953-6.
Herein, water-oxidation reaction by cobalt(II) phthalocyanine, N,N'-bis (salicylidene) ethylenediamino cobalt(II), nickel(II) Schiff base (N,N'-bis (salicylidene)ethylenediamino nickel(II), nickel(II)) phthalocyanine-tetrasulfonate tetrasodium, manganese(II) phthalocyanine, 5,10,15,20-Tetraphenyl-21H,23H-porphine manganese(III) chloride, manganese(III) 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine chloride tetrakis(methochloride) was investigated using electrochemistry, UV-vis spectroscopy and spectroelectrochemistry. According to our results, a new decomposition pathway for these metal complexes under water-oxidation conditions was proposed. The produced metal oxide obtained by decomposition of metal complex under water -oxidation conditions not only catalyzes water-oxidation reaction but this metal oxide also accelerates decomposition of the corresponding complex to form higher amounts of the metal oxide. We hypothesize that such a mechanism could be investigated for many metal complexes under different oxidation or reduction reactions.
本文利用电化学、紫外可见光谱和光谱电化学方法研究了钴（II）酞菁、N，N'-双（水杨醛亚胺）乙二胺钴（II）、镍（II）席夫碱（N，N'-双（水杨醛亚胺）乙二胺镍（II）、镍（II））酞菁四磺酸钠、锰（II）酞菁、5，10，15，20-四苯基-21H，23H-卟啉氯化锰（III）、锰（III）5，10，15，20-四（4-吡啶基）-21H，23H-卟啉氯化物四（甲氯化物）的水氧化反应。根据我们的结果，提出了这些金属配合物在水氧化条件下的一种新的分解途径。在水氧化条件下通过金属配合物分解得到的生成的金属氧化物不仅催化水氧化反应，而且这种金属氧化物还加速相应配合物的分解以形成更多量的金属氧化物。我们假设可以针对许多金属配合物在不同的氧化或还原反应下研究这样一种机制。
