Abstract

The reaction of 2,3,7,8,12,13,17,18-octaethylporphyrin with sodium nitrite in trifluoroacetic acid produced 5-nitro-2,3,7,8,12,13,17,18-octaethylporphyrin, 5,15-dinitro-2,3,7,8,12,13,17,18-octaethylporphyrin, and 5,10,15-trinitro-2,3,7,8,12,13,17,18-octaethylporphyrin. Reactions of octaethylporphyrin, mono-, di-, tri-, and tetranitro-substituted porphyrins coordination to cobalt(II) acetate in a chloroform–methanol mixture were studied. The corresponding Co(II) porphyrinates were obtained and identified. It was shown that, upon dissolution of Co(II) octaethylporphyrinates in dimethylformamide in the presence of NaOH, the Co(II)→Co(III) oxidation occurs in the coordination site of the macrocycle.

中文翻译：

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介孔硝基取代的八乙基卟啉及其Co（II）配合物的合成及光谱性质

摘要

2,3,7,8,12,13,17,18-八乙基卟啉与亚硝酸钠在三氟乙酸中的反应生成了5-nitro-2,3,7,8,12,13,17,18，八乙基卟啉，5 1,15-二硝基-2,3,7,8,12,13,17,18-八乙基卟啉和5,10,15-三硝基-2,3,7,8,12,13,17,17,18-八乙基卟啉。在氯仿-甲醇混合物中，研究了八乙基卟啉，单，二，三和四硝基取代的卟啉与乙酸钴（II）的配位反应。获得并鉴定了相应的卟啉Co（II）。结果表明，在氢氧化钠的存在下，八乙基卟啉钴（II）溶解在二甲基甲酰胺中，在大环的配位部位发生了钴（II​​）→钴（III）的氧化。