用神经网络研究异喹啉类缓蚀剂结构与性能的关系

中国腐蚀与防护学报

1998, Vol. 18

Issue (4): 283-288

研究报告

本期目录 | 过刊浏览

用神经网络研究异喹啉类缓蚀剂结构与性能的关系

胡芳;屈定荣;李志良;石鲜明

湖南大学化学化工学院;长沙410084;湖南大学化学化工学院;长沙410084;湖南大学化学化工学院;长沙410084重庆大学化学化工学院重庆400044;中国科学院化学研究所;北京100080

NEURAL NETWORK STUDY ON CORRELATION BETWEENELECTRONIC STRUCTURE AND CORROSION INHIBITIONPROPERTIES OF ISOQUINOLINE AND ITS DERIVATIVES

HU Fang QU Ding-rong SHI Xian-ming LI Zhi-liang(College of Chemical Engineering; Institute of Molecular Science; Hunan University;Changsha 410082)(Institute of Chemistry; Chinese Academy of Sciences; Beijing 100080) (College of Chemical Engineering; Chong

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摘要: 运用人工神经网络反传算法研究了异喹啉及其衍生物电子结构与缓蚀性能之间的关系。以缓蚀剂分子氮净电荷、自由价、亲核前沿电荷密度等量子化学参数为输入变量,考察了异喹啉及其羟基、羧基衍生物在30℃,1.0mo1·dm~(-3)HCl溶液中对铁的缓蚀效率,建立了相应的预测模型。对于研究这类缓蚀剂分子在电极表面的吸附模型和缓蚀行为及定量预测同类新分子的缓蚀性能有一定价值。

关键词 ：神经网络, 异喹啉及其衍生物, 缓蚀效率

Abstract：An approach of neural network was made on its application to the correlation between molecular electronic structure and corrosion inhibition properties of isoquinoline and its derivatives. It was indicated in a reference that the less the net charge and π charge of N atom are ,the higher the inhibition efficiency is, and the net charge of six atoms in pyridine ring increases. The inputs of neural networks were the molecular structure parameters, such as net charge and π charge of N atom, which were obtained by means of HMO and CNDO/2 methods. The neural network's outputs included the corrosion-inhibition efficiencies of isoquinoline and its hydroxyl and carboxyl derivatives for iron electrode in HCl solution or electrode parameters which were determined with electrochemical methods in 1.0 mol·dm-3 HCl solution at 30℃. The corresponding relationship and modeling prediction were established by using the neural networks with 7-15-6, 7-5-5, and 9-10-6 topological structures that were trained beforehand by modified backpropagation (MBP) algorithm respectively. The learning precision was high and the predicting performance was excellent. With the trained neural network the corrosion inhibition properties or electrode parameters of some unknown isoquinoline's derivatives could be predicted quantitatively and the results were quite good.

Key words： Neural networks Molecular electronic structure Inhibitor Isoquinoline

收稿日期: 1998-08-25

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胡芳;屈定荣;李志良;石鲜明. 用神经网络研究异喹啉类缓蚀剂结构与性能的关系[J]. 中国腐蚀与防护学报, 1998, 18(4): 283-288.
. NEURAL NETWORK STUDY ON CORRELATION BETWEENELECTRONIC STRUCTURE AND CORROSION INHIBITIONPROPERTIES OF ISOQUINOLINE AND ITS DERIVATIVES. J Chin Soc Corr Pro, 1998, 18(4): 283-288.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1998/V18/I4/283

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