Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (9): 1706.

• Articles • Previous Articles     Next Articles

Selective Interaction Based on Complex [Ru(phen)2(H2biim)](PF6)2 and Anions

CUI Ying1,2*, YE Bao-Hui2, NIU Yan-Li2, ZHONG Yong-Rui2   

  1. 1. Department of Pharmacy, Guangdong Food and Drug Vocational College, Guangzhou 510520, China;
    2. School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
  • Received:2009-10-10 Online:2010-09-10 Published:2010-09-10
  • Contact: CUI Ying. E-mail: cuiy@gdyzy.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20771104, 20371052)和广东省医学科学技术研究基金(批准号: B2009040)资助.

Abstract: A new anion sensor[Ru(phen)2(H2biim)](PF6)2(1) has been developed, where the Ru/(Ⅱ)-phen moiety acts as a chromophore and H2biim ligand as an anion receptor via the formation of hydrogen bonds or deprotonation. A systematic investigation shows that complex 1 is an eligible sensor for various anions. It donates hydrogen bonds to the Cl-, Br-, I-, NO3-, HSO4- and H2PO4- anions, and further actualize mono proton transfer to OAc- anion via the formation of a robust, cyclic hydrogen bonding system and turns the color from yellow to orange brown. In the case of F-, stepwise deprotonation of the two N—H fragments occurs due to the formation of a highly stable HF2- anion, resulting in color change from yellow to purple, which can be distinguished by naked-eye.

Key words: Anion-selected recognition, Hydrogen bonding, Proton transfer

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