Chinese Journal of Applied Chemistry

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Synthesis, Crystal and Molecular Structures and Herbicidal Activity of 2-(4-Methoxyphenyl)imidazole [4,5-f] 1,10-phenanthroline

SU Fansheng1, SUN Yunming1, LUO Xiaoyong2, DONG Fengying1*, YANG Qing1   

  1. (1.College of Chemistry and Pharmaceutical Sciences;
    2.College of Agronomy and Plant Protection,Qingdao Agricultural University,Qingdao 266109,China)
  • Received:2013-04-12 Revised:2013-09-07 Published:2014-03-10 Online:2014-03-10
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Abstract: 2-(4-Methoxyphenyl)imidazole[4,5-f]1,10-phenanthroline was synthesized and characterized by FT-IR, elemental analysis and single crystal X-ray diffraction. The structure analysis revealed that each molecule formed two N—H…N hydrogen bonds with two adjacent molecules. Two types of π-π stacking modes were also observed in the title compound. N—H…N hydrogen bonds and π-π stacking interactions extend along the crystallographic c-axis and a-axis, respectively, which allows the title compound to assemble into a novel two-dimensional supramolecular architecture. The herbicidal activity of the title compound on Echinochloa crusgalli(L.) Beauv., Lagopsis supine and Lactuca sativa were carried out by the method of grinded plant tissue powder mixed with agar(PPA). The results show that the growth of Echinochloa crusgalli(L.) Beauv. and Lagopsis supine is inhibited while the growth of Lactuca sativa is promoted by the title compound.

Key words: synthesis, crystal structure, herbicidal activity, selectivity, plant growth regulator

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