期刊
TETRAHEDRON
卷 68, 期 36, 页码 7302-7308出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.06.094
关键词
Charge transfer; Donor-acceptor systems; Ferrocence; Electronic absorption spectra; Cyclic voltammetry
资金
- DST
- CSIR Govt. of India, New Delhi
A series of donor-acceptor compounds 2-6 have been synthesized, via Knoevenagel condensation reaction (using conventional method, as well as microwave method). The ferrocene unit acts as a donor, conjugated phenyl-acetylene linker act as a pi-electron relay unit, and malononitrile, cyanoacetic acid, and indanone groups act as acceptor. The electronic absorption spectra displayed a broad intramolecular charge transfer (CT) band in the visible region (450-650 nm). The electrochemical studies suggest considerable donor acceptor interaction. The single crystal X-ray structure of 2, and 3 are reported, the structure reveals that 2 is nearly planar compared to 3. The supramolecular structure of 2 exhibits intramolecular C-H-pi, and C-H-N interaction, which leads to formation of 2D network, whereas compound 3 shows head to tail dimer formation through C-H-pi, and pi-pi interaction. (C) 2012 Elsevier Ltd. All rights reserved.
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