摘要
以含有共轭大π键的对叔丁基杯[8]芳烃(Cal8)和十八(烷)铵(ODA)与Keggin结构和Dawson结构钼磷杂多酸(HPA)做成膜材料,用LB技术制备了2种新型无机-有机杂化LB膜.用π-A曲线、UV-Vis吸收光谱、荧光光谱和原子力显微镜(AFM)对标题LB膜的成膜性质、结构及发光性质进行了表征.结果表明在空气/水界面Cal8/ODA/HPA杂化可形成稳定的单层与多层膜.标题杂化LB膜的崩溃压为39.0mN/m,其粒子具有纳米尺寸,在激发波长为280nm时,可观察到322~387nm处由Cal8分子π-π*跃迁引起的荧光发射峰及510nm处PMo12O34-0杂多阴离子的配体到金属的荷移跃迁(LMCT)三重发射谱带.
Two new inorganic-organic hybrid LB films of tert-butylcalix[8]arene (Ca18)/octadecylammonium (ODA)/molybdophosphoricheteropolyacids (HPMo12, HP2Mo18) were prepared and characterized by π-A isotherms, UV-Vis absorption spectra, atomic force microscope and fluorescence spectra. The experi- mental results indicate that title compounds can form stable monolayer and polylayer films on the air/water interface. The collapse pressure of the title LB films was 39.0 mN/m. The fluorescence spectra showed that the emission peak during 322-387 nm was due to the π-π* transition in the Cal8 and the emission peak at 510 nm might correspond to the ligand to metal charge transfer (LMCT) triplet emission of PMo12O40^3- .
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2006年第8期1093-1096,共4页
Chinese Journal of Organic Chemistry
基金
国家自然科学基金(Nos.29671011
29971010)
湖北省自然科学基金(No.2001ABB088)资助项目.