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Published on: February 7, 2017
Urethane tetrathiafulvalene derivatives: synthesis, self-assembly and electrochemical properities
Xiang Sun1, Guoqiao Lai2, Zhifang Li2
1Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
Abstract:
This paper reports the self-assembly of two new tetrathiafulvalene (TTF) derivatives that contain one or two urethane groups. The formation of nanoribbons was evidenced by scanning electron microscopy (SEM) and X-ray diffraction (XRD), which showed that the self-assembly ability of T 1 was better than that of T 2 . The results revealed that more urethane groups in a molecule did not necessarily instigate self-assembly. UV-vis and FTIR spectra were measured to explore noncovalent interactions. The driving forces for self-assembly of TTF derivatives were mainly hydrogen bond interactions and π-π stacking interactions. The electronic conductivity of the T 1 and T 2 films was tested by a four-probe method.
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