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    Fabrication of Binary Chiral Supramolecular Aggregates at the Air-Water Interface

    Year: 2014

    Journal: SCIENCE OF ADVANCED MATERIALS, Vol. 6, p 2558-2561, 20150722

    Authors: Tang, Ying; Wang, Hui-Ting; Chen, Meng; Qian, Dong-Jin; Zhang, Li; Liu, Minghua

    Organizations: Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China; Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

    Binary chiral supramolecular aggregates, composed of 5,10,15,20-(4-pyridyl) porphyrin (TPyP) and enantiomers of hydroquinine anthraquinone-1,4-diyl diether, (DHQ)(2)AQN or (DHQD)(2)AQN, have been prepared by the Langmuir-Blodgett (LB) technique. Mirror-imaged circular dichroism signals were recorded at about 242-266 and 424-442 nm; the former was designated (DHQ)(2)AQN and (DHQD)(2)AQN, while the latter was TPyP induced by the co-assembled (DHQ)(2)AQN or (DHQD)(2)AQN. The relative intensity of the chiral TPyP signals was largely enhanced in the LB films of Cu(II)/TPyP-(DHQ)(2)AQN and (DHQD)(2)AQN the of coordination polymers was prepared at the CuAc2 sub phase surface, suggesting that the coordination bonding of Cu-Py could efficiently induce the chirality of supramolecular aggregates.