Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (1): 1-4.

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Primary Organicamine Templated Indium Iodate (H2en)KIn(IO3)6·2(H2O) with Hydrogen-bonded Helices

LIU Guo-zong, LIU Xiao-min, DING Hong, NING De-kuan, LI Guang-hua, SHI Zhan* and FENG Shou-hua   

  1. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2009-01-19 Revised:2009-09-17 Online:2010-01-04 Published:2010-03-29
  • Contact: SHI Zhan. E-mail: zshi@mail.jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20671040, 20971054 and 90922034), New Century Excellent Talents in University of China and the Key Project of Chinese Ministry of Education(No.2009-49).

Abstract:

The first primary organicamine templated indium iodate with the formula (H2en)KIn(IO3)6·2(H2O) was hydrothermally synthesized via reaction at 100 °C for 7 d and characterized by single-crystal X-ray diffraction and thermal analysis. The compound crystallized in a triclinic system with space group P1, a=0.69803(14) nm, b=0.70863(14) nm, c=1.2091(2) nm, α=76.417(4)°, β=79.953(4)°, γ=72.206(3)°, V=0.55012(19) nm3. Structure determination indicates that it is made up of zero-dimensional units each of which consists of [In(IO3)6]3- anion, potassium, water and ethylenediamine cation. The most striking feature of the compound is that it possesses helical hydrogen bonds formed by organic amine template, water molecules and inorganic network.

Key words: Hydrothermal synthesis; Indium iodate; Helical hydrogen bond; Crystal structure