Synthesis and physical studying of Metallo-Supramolecular structure polymers

• Main Authors: Isung-Ming Lin, 林宗民
• Other Authors: Chien-Shiun Liao
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/79456658020386247521

碩士 === 元智大學 === 化學工程學系 === 93 === The main objective in this research is to synthesize organometalic compound with metallo-supramolecular structure. BTPTCDI was modified as bi-functional compound from PTCDA by end-caping with tridentate pyridine chelating ligand. By FTIR analysis, C=O bond of imide group was observed at 1694 cm-1 and 1661 cm-1. The composition percentages of carbon, hydrogen and nitrogen elements determined by EA were close to the theoretic values. Owing to the intrinsic insolubility of BTPTCDI compound, transitional metal ions can’t complex with BTPTCDI to form metallo-supramolecular structure. In order to improve solubility, the starting compound TCPTD with four chlorines at the bay positions was converted to BTTKPTD with four tert-butyl phenol groups at side chains through nucleophilic displacement reaction. The so formed, BTTKPTD could be soluble in most solvents. By analysis of FTIR, C=O bond of BTTKPTD at 1774 cm-1 and 1744 cm-1 of anhydride shift to 1697 cm-1 and 1659 cm-1 of imide group. Analysis of 1H-NMR shows that the chemical shift of δ=1.125-4.180 ppm is assigned as N-CH2 and O-CH2. Because phenol group is auxochromic, BTTKPTD absorpts with red-shifted about 50-60 nm in the UV-Vis spectra. The maximum absorption peak of UV-Vis absorption and PL emission are at 576 nm and 610 nm, respectively. Due to the rigid benzene structure of BTPTCDI and BTTKPTD, these compounds have high thermal stability, where their thermal decomposition temperature are at about 300-400℃ by TGA analysis. On the observation of AFM images, the compounds with phenol side groups can behave as larger particle size.