Journal of Materials Science

, Volume 41, Issue 21, pp 7141–7144 | Cite as

Metal assisted self-assembled nano sized porous 2-D structures incorporating malonic acid dihydrazide and melamine

  • Lallan Mishra
  • Brajesh Pathak
  • G. V. S. SastryEmail author
  • S. Umamaheswara Rao


The solids Cu(MADH)2·Cl2·2TAT·9H2O and Zn(MADH)2·Cl2·2TAT·2H2O (MADH = malonic acid dihydrazide and TAT = melamine) characterized by spectroscopic and elemental analysis, have been investigated by transmission electron microscope. Microstructure at high magnification revealed the supramolecular assembly of MADH and TAT into a mesh structure in presence of Cu(II) metal ions and tubular structure with intermittent openings on the tube walls and Y- junctions for Zn(II) complex. The mesh structure of the Cu(II) complex has uniformly spaced 40–50 nm long and 20–30 nm wide openings, while the diameter of the tubular structure of the Zn(II) complex is 50–200 nm.The assembly of the supramolecular structure is attributed to H-bonding and the different architectures of the assembly with different metal ions to the difference in waters of crystallization. The potential of the complex for gas adsorption was also investigated.


Perforation Melamine Tubular Structure Width Ratio Malonic Acid 



One of the authors (LM) is thankful to UGC, New Delhi, India for financial assistance.


  1. 1.
    Rastogi RP, Mishra L (1998) Indian J Chem 37A:377 and references thereinGoogle Scholar
  2. 2.
    Baxter PNW, Lehn JM, Fischer J, Youinov MT (1994) Angew Chem Int Ed Engl 33:2284CrossRefGoogle Scholar
  3. 3.
    Leize E, Dorsselaer AV, Kramer R, Lehn JM (1993) J Chem Soc Chem Commun 990Google Scholar
  4. 4.
    Delaigue X, Hosseini MW, Lieze E, Kieffer S, Dorsselaer AV (1993) Tetrahedron Lett 34:756Google Scholar
  5. 5.
    Fuches NR, Habermann N, Klufers P (1993) Angew Chem Int Ed Engl 32:852CrossRefGoogle Scholar
  6. 6.
    Bucheeker COD, Sauvage JP, Kintzinger JP (1983) Tetrahedron Lett 24:5095CrossRefGoogle Scholar
  7. 7.
    Lallan M, Pathak B, Agarwal Y (2004) Trans Metal Chem 29:437CrossRefGoogle Scholar
  8. 8.
    Brajesh P (2002) Ph.D. Thesis Studies of metalbased molecular and supramolecular complexes. Banaras Hindu University, Varanasi, IndiaGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Lallan Mishra
    • 1
  • Brajesh Pathak
    • 1
  • G. V. S. Sastry
    • 2
    Email author
  • S. Umamaheswara Rao
    • 2
  1. 1.Department of ChemistryBanaras Hindu UniversityVaranasiIndia
  2. 2.Centre of Advanced Study, Department of Metallurgical EngineeringBanaras Hindu UniversityVaranasiIndia

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