基于 18β-甘草次酸衍生芘的荷移相互作用诱导的有机凝胶。
Charge-transfer interaction mediated organogels from 18β-glycyrrhetinic acid appended pyrene.
机构信息
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China, ; Department of Chemistry and Biochemistry, University of South Carolina, Columbia, 29208, USA.
Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China.
出版信息
Beilstein J Org Chem. 2013 Dec 16;9:2877-85. doi: 10.3762/bjoc.9.324. eCollection 2013.
We describe herein the two-component charge-transfer (CT) interaction induced organogel formation with 18β-glycyrrhetinic acid appended pyrene (GA-pyrene, 3) as the donor, and 2,4,7-trinitrofluorenone (TNF, 4) as the acceptor. The use of TNF (4) as a versatile electron acceptor in the formation of CT gels is demonstrated through the formation of gels in a variety of solvents. Thermal stability, stoichiometry, scanning electron microscopy (SEM), optical micrographs, and circular dichroism (CD) are performed on these CT gels to investigate their thermal and assembly properties. UV-vis, fluorescence, mass spectrometric as well as variable-temperature (1)H NMR experiments on these gels suggest that the CT interaction is one of the major driving forces for the formation of these organogels.
我们描述了二组分的电荷转移（CT）相互作用诱导的有机凝胶形成，其中 18β-甘草次酸接枝的芘（GA-芘，3）作为给体，2,4,7-三硝基芴酮（TNF，4）作为受体。通过在各种溶剂中形成凝胶，证明了 TNF（4）作为一种多功能电子受体在 CT 凝胶形成中的应用。对这些 CT 凝胶进行了热稳定性、化学计量学、扫描电子显微镜（SEM）、光学显微镜和圆二色性（CD）测试，以研究它们的热和组装性质。这些凝胶的紫外-可见、荧光、质谱以及变温（1）H NMR 实验表明，CT 相互作用是形成这些有机凝胶的主要驱动力之一。
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