Yttrium and lanthanide nitrate complexes of N,N1-bis(4-antipyrylmethylidene)ethylenediamine

  • Siby Joseph
  • P K Radhakrishnan
Inorganic And Analytical


Complexes of yttrium and lanthanide nitrates with a Schiff base, N,N1-bis(4-antipyrylmethylidene)ethylenediamine (BAME) having the general formula [Ln(BAME)2(NO3)](NO3)2, where Ln=Y, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho and Er have been synthesised and characterised by elemental analyses, molar conductance in non-aqueous solvents, electronic, infrared and proton NMR spectra. BAME acts as a neutral bidentate ligand coordinating through both azomethine nitrogen atoms. One of the nitrate groups is coordinated in a bidentate manner. A coordination number of six may be assigned to the metal ion in these complexes. The covalency parameters evaluated from the solid state electronic spectra suggest weak covalent character of the metal-ligand bond.


Schiff base lanthanides yttrium complexes N,N1-bis(4-antipyrylmethylidene)ethylenediamine 


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  1. 1.
    Radhakrishnan P K, Indrasenan P and Nair C G R 1984Polyhedron 3 67CrossRefGoogle Scholar
  2. 2.
    Radhakrishnan P K 1985J. Less-Common Met. 107 45CrossRefGoogle Scholar
  3. 3.
    Radhakrishnan P K 1985Inorg. Chim. Acta 110 211CrossRefGoogle Scholar
  4. 4.
    Alaudeen M and Radhakrishnan P K 1990Synth. React. Inorg. Met.-Org. Chem. 20 673CrossRefGoogle Scholar
  5. 5.
    Muraleedharan Nair M K and Radhakrishnan P K 1993Polyhedron 12 1227CrossRefGoogle Scholar
  6. 6.
    Muraleedharan Nair M K and Radhakrishnan P K 1996Proc. Indian Acad. Sci. (Chem. Sci.) 108 345Google Scholar
  7. 7.
    Gao X M and Rhodes J 1990J. Immunol. 144 2883Google Scholar
  8. 8.
    Wang P H, Keck E J, Lein E J and Lai M C C 1990J. Med. Chem. 33 608CrossRefGoogle Scholar
  9. 9.
    Nair M R G, Kurian M J and Prabhakaran C P 1981Talanta 28 395CrossRefGoogle Scholar
  10. 10.
    Geary W J 1971Coord. Chem. Rev. 7 81CrossRefGoogle Scholar
  11. 11.
    Li Bin, Zhao Guoliang and Tang Guoqing 1991Synth. React. Inorg. Met.-Org. Chem. 21 1387CrossRefGoogle Scholar
  12. 12.
    Yusuff K K M and Sreekala R 1991Synth. React. Inorg. Met.-Org. Chem. 21 1157CrossRefGoogle Scholar
  13. 13.
    Giri V and Indrasenan P 1983Polyhedron 2 573CrossRefGoogle Scholar
  14. 14.
    Shankar G, Premkumar R R and Ramalingam S K 1986Polyhedron 5 991CrossRefGoogle Scholar
  15. 15.
    Gatehouse B M, Livingstone S E and Nyholn R S 1958J. Inorg. Nucl. Chem. 8 75CrossRefGoogle Scholar
  16. 16.
    Nakamoto K 1986Infrared and Raman spectra of inorganic and coordination compounds 4th edn. (New York, USA: Wiley) p. 256Google Scholar
  17. 17.
    Agarwal R K, Sarin R K and Prasad R 1993Polish J. Chem. 67 947Google Scholar
  18. 18.
    Lu Zhong-lin, Wu Xiao-Li, Liang Yong-min, Song Qing-bao, Huang Guo-sheng and Ma Yong-xiang 1994Synth. React. Inorg. Met.-Org. 24 1753CrossRefGoogle Scholar
  19. 19.
    Sinha S P 1966Spectrochim. Acta 22 57CrossRefGoogle Scholar
  20. 20.
    Carnall W T, Fields P R and Rajnak K 1968J. Chem. Phys. 49 4424CrossRefGoogle Scholar
  21. 21.
    Karraker D G 1967Inorg. Chem. 6 1863CrossRefGoogle Scholar

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© the Indian Academy of Sciences 1998

Authors and Affiliations

  • Siby Joseph
    • 1
  • P K Radhakrishnan
    • 1
  1. 1.School of Chemical SciencesMahatma Gandhi University, KottayamKeralaIndia

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