Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (20): 2055-2061. Previous Articles     Next Articles

芳香碘基辅助的配位超分子自组装——锌(Ⅱ)、镉(Ⅱ)与7-碘-8-羟基喹啉-5-磺酸配合物的合成和结构

张锋1,2, 桑石云1, 张阳阳1, 张向东1, 李一志2, 陈慧兰2, 刘祁涛1   

  1. 1. 辽宁大学化学科学与工程学院, 沈阳, 110036;
    2. 南京大学配位化学国家重点实验室, 南京, 210093
  • 投稿日期:2003-08-01 修回日期:2004-04-22 发布日期:2014-02-17
  • 通讯作者: 刘祁涛,E-mail:qtliu@lnu.edu.cn. E-mail:qtliu@lnu.edu.cn
  • 基金资助:
    国家自然科学基金(No.29971014)、教育部归国博士启动基金(1998[679])和辽宁省科委自然科学基金(No.9910500506)资助项目.

Aromatic Iodine Assisted Self-assembly of Zn(Ⅱ) and Cd(Ⅱ) Complexes of 7-Iodo-8-hydroxyquinoline-5-sulfonate

ZHANG Feng1,2, SANG Shi-Yun1, ZHANG Yang-Yang1, ZHANG Xiang-Dong1, LI Yi-Zhi2, CHEN Hui-Lan2, LIU Qi-Tao1   

  1. 1. Institute of Chemical Science and Engineering, Liaoning University, Shenyang 110036;
    2. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093
  • Received:2003-08-01 Revised:2004-04-22 Published:2014-02-17

Two complexes [Zn(IHQS)(H2O)3]2·4H2O (1) and [Cd(IHQS)(H2O)2]n·2nH2O (2) (IHQS=7-iodo-8-hydroxyquinoline-5-sulfonate) have been synthesized and investigated by X-ray diffraction method. Both 1 and 2 are composed of a pair of coordination enantiomers. Compound 1 exhibits a coupled dimer coordination of the [Zn-(IHQS)(H2O)3] enantiomer pair by a complementary sulfonato-coordination to the octahedral Zn(Ⅱ) centers, and the dimer further forms a unique 2D-layer structure by double hydrogen interactions between the sulfonato group and the coordination water molecule. Compound 2 has a linear 1D-coordination polymer structure, which is formed by the [Cd-(IHQS)(H2O)3] enantiomer pair through a bis-complementary sulfonato-coordination mode. The aromatic iodo group demonstrated novel C—I…H (quinoline ring) and C—I…O (sulfonate) weak interactions, which are important for supporting these structures. The results provided an interesting example of the molecular shape-fitting and space-matching weak interactions involving the iodo, sulfonato, and quinoline moieties. Compound 1 is in monoclinic C2/c space group with a=2.2243(7) nm, b=1.0053(3) nm, c=1.3468(4) nm, β=102.267(5)°, V=2.9428(16) nm3, and Z=4. Compound 2 is in triclinic P1- space group with a=0.6949(2) nm, b=1.0183(3) nm, c=1.0989(3) nm, α=76.069(5)°, β=75.294(5)°, γ=84.747(5)°, V=0.7295(4) nm3 and Z=2.

Key words: 7-iodo-8-hydroxyquinoline-5-sulfonate, metal complex, weak interaction, crystal structure