State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China.
Small. 2015 Aug 5;11(29):3597-605. doi: 10.1002/smll.201500090. Epub 2015 Mar 24.
In this study, multidimensional nanoassemblies with various morphologies such as nanosheets, nanorods, and nanofibers are developed via charge-transfer interaction and supra-amphiphile self-assembling in aqueous phase. The charge-transfer interactions between tetrathiafulvalene derivatives (TTFs) and methyl viologen derivatives (MVs) have been confirmed by the characteristic charger-transfer absorption. (1) H NMR and electrospray ionizsation mass spectrometry (ESI-MS) analyses also indicate supra-amphiphiles are formed by the combination of TTFs and MVs head group through charge-transfer interaction and Coulombic force. X-ray single crystal structural studies, transmission electron microscopy (TEM), and scanning electron microscopy (SEM) reveal that both linkage pattern of TTFs in hydrophilic part and alkane chain structure in hydrophobic part have significant influence on nanoassemblies morphology and microstructure. Moreover, gold nanoparticles (AuNPs) are introduced in the above supramolecular nanoassemblies to construct a supra-amphiphile-driven organic-AuNPs assembly system. AuNPs could be assembled into 1D-3D structures by adding different amount of MVs.
在这项研究中，通过电荷转移相互作用和超两亲自组装在水相中开发了具有各种形态的多维纳米组装体，如纳米片、纳米棒和纳米纤维。四硫富瓦烯衍生物（TTFs）和甲紫精衍生物（MVs）之间的电荷转移相互作用通过特征电荷转移吸收得到了证实。（1）1H NMR 和电喷雾电离质谱（ESI-MS）分析也表明，超两亲物通过 TTFs 和 MVs 头基之间的电荷转移相互作用和库仑力结合形成。X 射线单晶结构研究、透射电子显微镜（TEM）和扫描电子显微镜（SEM）表明，亲水部分中 TTFs 的连接模式和疏水部分中的烷链结构对纳米组装体的形态和微观结构有显著影响。此外，将金纳米粒子（AuNPs）引入上述超分子纳米组装体中，构建了超两亲物驱动的有机-AuNPs 组装体系。通过添加不同量的 MV，可以将 AuNPs 组装成 1D-3D 结构。
