Abstract The corrosion behavior of copper in 0.1 M aqueous sulfuric acid medium has been studied using potentiodynamic polarization measurements, quantum chemical calculations, and molecular dynamic simulations in the presence and absence of (2E,5E)-2,5-dibenzylidenecyclopentanone (M1) and (2E,5E)-bis[(4-dimethylamino)benzylidene]cyclopentanone (M2). The compounds were freshly prepared in high yields via the Claisen–Schmidt reaction between the cyclopentanone and the corresponding aryl aldehyde. The results from the potentiodynamic measurements imply that M1 and M2 act as mixed inhibitors due to their adsorption on the copper surface. The more pronounced corrosion inhibition performance of the M2 molecule in comparison to M1 was related to the fact that this molecule contains two basic nitrogen atoms (in 4-dimethylamino group).

中文翻译：

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(2E,5E)-2,5-二亚苄基环戊酮和(2E,5E)-双[(4-二甲氨基)亚苄基]环戊酮对铜在硫酸水溶液中的腐蚀研究：实验和理论研究

摘要 在 (2E,5E)-2,5-二亚苄基环戊酮 (M1) 和不存在条件下，使用动电位极化测量、量子化学计算和分子动力学模拟研究了铜在 0.1 M 硫酸水溶液中的腐蚀行为。 (2E,5E)-双[(4-二甲氨基)亚苄基]环戊酮(M2)。这些化合物是通过环戊酮和相应的芳醛之间的 Claisen-Schmidt 反应以高收率新鲜制备的。动电位测量的结果表明 M1 和 M2 由于它们吸附在铜表面上而充当混合抑制剂。与 M1 相比，M2 分子更显着的腐蚀抑制性能与该分子含有两个碱性氮原子（在 4-二甲氨基中）有关。