The Synthesis And Property Studies Of Uracil Functionalized Luminescent Materials

In this thesis,four diimine compounds of Phen-Ura-n(n = 1 ~ 4)with different length alkoxy chains were synthesized,and used to synthesize phosphorescent Re(I)/Ru(II)complexes of Re-Ura-n/Ru-Ura-n(n = 1 ~ 4).What is more,the photophysical and electrochemical properties of the synthesized ligands and complexes were studied.Additionally,eight phosphorescent gels of Re-Ura-n@PAA/Ru-Ura-n@PAA(n = 1 ~ 4)were prepared by physically mixing the titled metal complexes and PAA in DMF.The photophysical properties,the mechanical measurements and the self-healing characteristic of the above-mentioned gels were also systematically carried out.All the characterizations are summarized as follows:1?The maximum emission peaks of Re-Ura-n(n = 1 ~ 4)in powder state and DMF solution locate at ca.580 ~593 nm and ca.595 nm,respectively,with the full widths at half peak of ca.100 nm.The maximum emission of Re-Ura-n@PAA(n = 1 ~ 4)gels locate at ca.600 nm,with the full widths at half peak of ca.93 nm.The Re-Ura-2(0.8 wt%)@PS fibers,PS is polystyrene,has the best optical oxygen sensitivity of 55.26%,with the collision efficiency to oxygen of 126.38%.The Re-Ura-n(0.6 wt%)@PAA(n = 1 ~ 4)gels,where PAA is polyacrylic acid,have the self-healing characteristic,the Re-Ura-1(0.6 wt%)@PAA gel has the maximum stress of 162 MPa and the broken Re-Ura-1(0.6 wt%)@PAA gel can achieve 59.8% self-healing efficiency within 120 minutes.2?The maximum emission peaks of Ru-Ura-n(n = 1 ~ 4)in powder state locate at ca.600 nm.In DMF solution,the maximum emission peaks of Ru-Ura-1 locates at ca.608 nm,the maximum emission peaks of Ru-Ura-n(n = 2 ~ 4)are blue shifted to 605 nm with the full widths at half peak of ca.75 nm,the maximum emission peaks of Ru-Ura-n@PAA(n = 1 ~ 4)gels locate at ca.605 nm,with the full widths at half peak of ca.70 nm.The Ru-Ura-n(0.6 wt%)@PAA(n = 1 ~ 4)gels also have the self-healing characteristic,the Ru-Ura-1(0.6 wt%)@PAA gel has the maximum stress of 239 Mpa,and the broken Ru-Ura-3(0.6 wt%)@PAA gel could achieve 86% self-healing efficiency within 120 minutes.