Lanthanide perchlorate complexes of 4-cyano pyridine-N-oxide, 4-chloro 2-picoline-N-oxide and 4-dimethyl amino-2-picoline-N-oxide

  • N S Navaneetham
  • S Soundararajan
Inorganic and Analytical


Complexes of lanthanide perchlorates with 4-cyano pyridine-1-oxide, 4-chloro 2-picoline-1-oxide and 4-dimethyl-amino 2-picoline-1-oxide have been isolated for the first time and characterized by analysis, conductance, infrared, NMR and electronic spectra. The complexes of 4-cyano pyridine-1-oxides have the composition Ln(CyPO)6(ClO4)3. 2H2O (Ln=La, Sm, Dy and Ho); Ln(CyPO)7 (ClO4)3. 2H2O (Ln=Pr, Nd, Er and Yb); and Ln(CyPO)5 (ClO4)3. 2H2O (Ln=Gd and Tb). The complexes of 4-chloro 2-picoline-1-oxide analyse for the formulae Ln(CpicO)6 (ClO4)3 (Ln=La, Pr, Nd and Ho); and Ln (CpicO)5 (ClO4)3 (Ln=Er and Yb), and those of 4-dimethylamino 2-picoline-1-oxide for Ln(DMPicO)6 (ClO4)3 (Ln=La and Nd); Ln(DMPicO)7 (ClO4)3 (Ln=Gd, Er and Yb); and Ln(DMPicO)8 (ClO4)3 (Ln=Dy and Ho).


Lanthanide perchlorates 4-cyano pyridine-N-oxide 4-chloro 2-pico-line-N-oxide 4-dimethylamino 2-picoline-N-oxide proton NMR electronic spectra 


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  1. Field R A, Kepert D L and Tayler D 1970Inorg. Chim. Acta 4 113CrossRefGoogle Scholar
  2. Geary W J 1971Coord. Chem. Rev. 7 81CrossRefGoogle Scholar
  3. Harrison C H and Watson W H 1970J. Inorg. Nucl. Chem. 32 2255CrossRefGoogle Scholar
  4. Hathaway B J and Underhill A E 1961J. Chem. Soc. 3091Google Scholar
  5. Hathaway B J, Hilah D G and Hudson M J 1963J. Chem. Soc. p. 4586Google Scholar
  6. Jagannathan R and Soundararajan S 1979J. Coord. Chem. 9 31CrossRefGoogle Scholar
  7. Karayannis N M, Mikulski C M and Pytlewski L L 1974Chim. Chronica 3 121Google Scholar
  8. Karraker D G 1967Inorg. Chem. 6 1863CrossRefGoogle Scholar
  9. Katritzky A R, Randall E W and Sutton L E 1957J. Chem. Soc. p. 1769Google Scholar
  10. Koppikar D K and Soundararajan S 1975J. Indian Inst. Sci. 57 461Google Scholar
  11. Koppikar D K and Soundararajan S 1976J. Inorg. Nucl. Chem. 38 1875CrossRefGoogle Scholar
  12. Krishnamurthy V N and Soundararajan S 1967Can. J. Chem. 47 189CrossRefGoogle Scholar
  13. Mikulski C M, Karayannis N M and Pytlewski L L 1977J. Less Common Metals 51 201CrossRefGoogle Scholar
  14. Navaneetham N S and Soundararajan S 1979aProc. Indian Acad. Sci. A88 413Google Scholar
  15. Navaneetham N S and Soundararajan S 1979bProc. Indian Acad. Sci. A88 131CrossRefGoogle Scholar
  16. Navaneetham N S and Soundararajan S 1979cInorg. Nucl. Chem. Lett. 15 379CrossRefGoogle Scholar
  17. Navaneetham N S and Soundararajan S 1979dCurr. Sci. 48 799Google Scholar
  18. Navaneetham N S and Soundararajan S 1980Proc. Indian Acad. Sci. (Chem. Sci.) 89 17Google Scholar
  19. Ochiai E 1953J. Org. Chem. 18 548CrossRefGoogle Scholar
  20. Tetsuzo Kato and Harue Hayshi 1963Yakugoku Zashi 83 352 (Chem. Abst. 196359 7473)Google Scholar

Copyright information

© Indian Academy of Sciences 1981

Authors and Affiliations

  • N S Navaneetham
    • 1
  • S Soundararajan
    • 1
  1. 1.Department of Inorganic and Physical ChemistryIndian Institute of ScienceBangaloreIndia

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