Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (4): 7-10.

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SYNTHESIS AND CHARACTERIZATION OF 2,4,4,11,13,13-HEXAMETHYL-1,5,10,14-TETRAAZACYCLOOCTADECANE-N,N″-DIACETIC ACID AND ITS LANTHANIDE COMPLEXES

Chen Liqin, Ni Shisheng, Xu Jide   

  1. Department of Chemistry, Anhui University, Hefei 230039
  • Received:1990-04-09 Revised:1990-09-20 Published:1991-08-10 Online:1991-08-10

Abstract: The synthesis of a novol 18 membered title compound (H2L) is reported.Lanthanidecomplexes (La through Lu, Pm excluded) with this ligand have been prepared in aqueoussolution by the interaction of H2L with rare earth nitrates.All these complexes crystallizedin microcrystalline powder wth composition of Ln(H2L)·(NO3)3·nH2O, independent of themetal to ligand ratio used in the preparation.All these complexes were characterized by ele-mental analysis, thermoanalysis, IR spectra and conductivity measurements.

Key words: hexamethyl-tetraazacyclooctadecane N-acetic acid, rare earth, complexes, synthesis