Proton controlled supramolecular assembly: A comparative structural study of bis(2-guanidinobenzimidazolo)nickel(II) with bis(2-guanidinobenzimidazole)nickel(II) nitrate and 2-guanidinobenzimidazole

被引:18
作者
Bishop, MM
Lindoy, LF [1 ]
Skelton, BW
White, A
机构
[1] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia
[2] Sydney Grammar Sch, Darlinghurst, NSW 2010, Australia
[3] Univ Western Australia, Dept Chem, Nedlands, WA 6907, Australia
基金
澳大利亚研究理事会;
关键词
crystal engineering; nickel(II); X-ray; protonation;
D O I
10.1080/10610270108027484
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Previously studies have shown that when 2-guanidinobenzimidazole complexes with a number of transition metal ions it tautomerises so that, in contrast to the free ligand structure, no intermolecular hydrogen bonding between bound ligands occurs. In the present study it is demonstrated that ligand deprotonation to yield bis(2-guanidinobenzimidazolo)nickel(II) restores much of the original hydrogen bonding capability of the uncomplexed ligand. The structure of this neutral complex is compared to the previously reported structure of its diprotonated derivative, bis(Z-guanidinobenzimidazole)nickel(II) nitrate, as well as to the structure of the uncomplexed ligand. In contrast to the dicationic species, the neutral complex exists in two enantiomeric forms that assemble to form an extended supramolecular lattice, containing channels through its structure. The walls of the channels are made up of 'strings' of complex molecules and are held in position by hydrogen bonding between the bound ligands and dimethyl sulfoxide (solvent) molecules as well as water molecules. Some of the solvent molecules lie within the channels and some outside. The hydrogen bonding motif responsible for chain formation differs from that found in the free ligand structure.
引用
收藏
页码:293 / 301
页数:9
相关论文
共 13 条
  • [1] THE STRUCTURE OF BIGUANIDE COMPLEXES OF BORON
    ANDERSON, KB
    FRANICH, RA
    KROESE, HW
    MEDER, R
    RICKARD, CEF
    [J]. POLYHEDRON, 1995, 14 (09) : 1149 - 1153
  • [2] Coordination behaviour of 2-guanidinobenzimidazole towards cobalt(II), nickel(II), copper(II) and zinc(II). An experimental and theoretical study
    BarbaBehrens, N
    VazquezOlmos, A
    CastilloBlum, SE
    Hojer, G
    MezaHojer, S
    Hernandez, RM
    RosalesHoz, MD
    Vicente, R
    Escuer, A
    [J]. TRANSITION METAL CHEMISTRY, 1996, 21 (01) : 31 - 37
  • [3] Modification of supramolecular motifs: perturbation of the structure of an extended hydrogen-bonded biuret array by interaction with an intercalated copper complex and methanol molecules
    Bishop, MM
    Lindoy, LF
    Mahadev, S
    Turner, P
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2000, (03): : 233 - 234
  • [4] MULTIDIMENSIONAL CRYSTAL ENGINEERING OF BIFUNCTIONAL METAL-COMPLEXES CONTAINING COMPLEMENTARY TRIPLE HYDROGEN-BONDS
    BURROWS, AD
    CHAN, CW
    CHOWDHRY, MM
    MCGRADY, JE
    MINGOS, DMP
    [J]. CHEMICAL SOCIETY REVIEWS, 1995, 24 (05) : 329 - &
  • [5] A crystal engineering study copper(II) complexes with 2,4-diamino-6-(4-pyridyl)-1,3,5-triazine (3) and 2-amino-4-phenylamino-6-(4-pyridyl)-1,3,5-triazine (4)
    Chan, CW
    Mingos, DMP
    White, AJP
    Williams, DJ
    [J]. POLYHEDRON, 1996, 15 (11) : 1753 - 1767
  • [6] CRYSTAL STRUCTURAL STUDIES OF BIS(BIGUANIDE)NICKEL(II) CHLORIDE
    CREITZ, TC
    GSELL, R
    WAMPLER, DL
    [J]. JOURNAL OF THE CHEMICAL SOCIETY D-CHEMICAL COMMUNICATIONS, 1969, (23): : 1371 - &
  • [7] BIGUANIDE
    ERNST, SR
    CAGLE, FW
    [J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1977, 33 (JAN15): : 235 - 237
  • [8] HALLS R, 1995, XTAL 3 4 REFERENCE M
  • [9] LUTH H, 1969, J CHEM SOC CHEM COMM, P520
  • [10] The role of transition metal ions in hydrogen bonded networks: A density functional molecular orbital theory study
    McGrady, JE
    Mingos, DMP
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1996, (03): : 355 - 358