期刊
INORGANIC CHEMISTRY
卷 50, 期 6, 页码 2562-2567出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic102393c
关键词
-
资金
- Natural Science Foundation of China, Ministry of Education of China, Shandong Province [Q2008B01]
- Beijing Municipal Commission of Education
- University of Science and Technology Beijing
- [20108007]
With the view to creating novel sandwich-type tetrapyrrole rare earth complexes toward potential applications in material science and chiral catalysis, two new optically active mixed (phthalocyaninato)(porphyrinato) rare earth triple-decker complexes with both (R)- and (S)-enantiomers [M-2(Pc)(2)(TCBP)] {TCBP = Meso-tetrakis [3,4-[11,12:13, 14-di(1',2'-naphtho)-1,4,7,10,15,18-hexaoxacycloeicosa-2,11, 13-triene)-phenyl] porphyrinate; M = Eu (1), Y (2)} have been designed and prepared by treating optically active metal free porphyrin (R)-/(S)-H2TCBP with M(Pc)(2) in the presence of corresponding M(acac)(3)center dot nH(2)O (acac = acetylacetonate) in refluxing 1,2,4-trichlorobenzene (TCB). These novel mixed ring rare earth triple-decker compounds were characterized by a wide range of spectroscopic methods including MS, H-1 NMR, IR, electronic absorption, and magnetic circular-dichroism (MCD) spectroscopic measurements in addition to elemental analysis. Perfect mirror image relationship was observed in the Soret and Q absorption regions in the circular-dichroism (CD) spectra of the (R)- and (S)-enantiomers, indicating the optically active nature of these two mixed (phthalocyaninato)(porphyrinato) rare earth triple-decker complexes. This result reveals the effective chiral information transfer from the peripheral chiral binaphthyl units to the porphyrin and phthalocyanine chromophores in the triple-decker molecule because of the intense pi-pi interaction between porphyrin and phthalocyanine rings. In addition, their electrochemical properties have also been investigated by cyclic voltammetry (CV).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据