苯胺-乙炔基金属卟啉的合成、电化学、吸收及电聚合

Synthesis, electrochemistry, absorption and electro-polymerization of aniline-ethynyl metalloporphyrins.

作者信息

Lin Ching-Yao, Hung Yu-Chun, Liu Chih-Ming, Lo Chen-Fu, Lin Yu-Chin, Lin Chia-Liang

机构信息

Department of Applied Chemistry, National Chi Nan University, 302 University Road, Puli, Nantou Hsien, 545, Taiwan.

出版信息

Dalton Trans. 2005 Jan 21(2):396-401. doi: 10.1039/b410416a. Epub 2004 Nov 30.

DOI:10.1039/b410416a

PMID:15616732

Abstract

Free-base, nickel(II), zinc(II) and iron(III) mono(4-aniline-ethynyl)biphenylporphines (AEBPPs) were synthesized and their electro-polymerization reactions were studied. Electrochemical and UV-Visible experiments showed that AEBPPs were electro-polymerized onto Pt and indium tin oxide (ITO) surfaces without significantly changing their redox and spectral properties. This suggests that the pi-conjugations of these porphyrins were not greatly affected upon electro-polymerization. SEM images indicated the formation of porphyrin films on the electrode surfaces, while EDS spectra of the metallo-AEBPP films confirmed deposits of the corresponding metals. Upon closer inspection, the AFM images revealed nano-scale fine structure of these porphyrin films. Both SEM and AFM images of the porphyrin films showed similar trends of porphyrin accumulation.

摘要

合成了游离碱、镍（II）、锌（II）和铁（III）单（4-苯胺乙炔基）联苯卟啉（AEBPPs），并研究了它们的电聚合反应。电化学和紫外可见光谱实验表明，AEBPPs能在铂和氧化铟锡（ITO）表面进行电聚合，且其氧化还原和光谱性质没有明显变化。这表明这些卟啉的π共轭在电聚合过程中没有受到很大影响。扫描电子显微镜（SEM）图像表明在电极表面形成了卟啉膜，而金属AEBPP膜的能谱（EDS）证实了相应金属的沉积。进一步观察发现，原子力显微镜（AFM）图像揭示了这些卟啉膜的纳米级精细结构。卟啉膜的SEM和AFM图像均显示出卟啉积累的相似趋势。