Design、synithesis And Characterization Of New Dehydrobenzene Macrocycles

Shape-persistent macrocycles (SPMs) with unique properties. The properties include regular structure, large conjugated macrocycles, nanoscale cavities, and so on. Making them promising building blocks for drug delivery, molecular recognition. In this paper, Shape-persistent macrocycle of six array ethynylene units (SPM-6) and eight array ethynylene units (SPM-8) and Shape-persistent macrocycle of six benzyne units based on tetraethylene glycol ether bridged (QSPM-6) were prepared.Using gel column we have successfully purified the macrocyclic compound B. The basic structural of the macrocyclic compound B were characterized by nuclear magnetic resonance, high resolution mass spectrometry. The thermodynamic properties, optical properties of the macrocyclic compound B were characterized by TGA, UV-Vis absorption spectra and Fluorescence emission spectra. The main research results were as following. (1) Hydrogen of amino is active and easy to leave and complexation with other substances. Therefore, we investigated the qualitative effects of macrocyclic compound B complexation with metal salt. We have found the macrocyclic compound B could combine with Cu2+, Hg2+, Fe3+which iron ion is the fluorescence quencher of the macrocyclic compound B.(2) Comparative the thermal stability of macrocyclic compound B and the polymer mixed macrocyclic compound B that the decomposition temperature of macrocyclic compound B was330～450℃, and the mixture was130℃. It broadens the application of macrocyclic compound B.(3) Compare with the compound b5, the macrocyclic compound B has more stable oxidation states and with good electron-withdrawing. Thus, there is a good prospect in the application of photovoltaic materials.