Synthesis and Spectroscopic Studies of Metal Complexes of N,N′‐p‐Phenylenedimethylenebis(pyridin‐4‐one) with d‐ and f‐Block Metal Ions
摘要:
The preparations are reported for a range of complexes of the ligand N,N'-p-phenylenedimethylenebis(pyridin-4-one) (XBP) with the d-block ions Mn(II) to Zn(II) and also with Cd(II), Y(III), and the lanthanide ions. Relevant solid state EPR, electronic and far-IR spectra are reported and interpreted in terms of the metal ion coordination geometries and, where appropriate, the likely long-range polymeric structures of the compounds. The value of the zero-field splitting (zfs) parameter, D = 0.069 cm(-1), obtained from the S = I type EPR spectrum of the compound ([Cu-2(XBP)(3)(NO3)(2)](NO3)(2).2H(2)O)(n) is compared with those of other compounds involving discrete Cu...Cu dimer interaction. The results of luminescence measurements on the complexes of Sm(III), Eu(III), Tb(III), and Dy(III) are also given.