A mass spectral investigation of 4-phenylpiperidine and N-phenylpiperidine-carbodithioato sodium salts and their cobalt (II), nickel (II) and copper (II) complexes

Two new dithiocarbamate ligands and their cobalt(II), nickel(II)_and copper(II) complexes have been investigated by mass spectrometry. The fragmentation modes of the ligands have been discussed and compared with those of previously studied dithioligands and with those of the obtained complexes. An important feature of the spectra of the ligands is the absence of the molecular ion peaks which were present in the spectra of the previously studied dithioligands; however, the molecular ion peaks are present in the spectra of the complexes reported here. This behaviour is exactly the reverse of that observed in our previous studies. The postulated decomposition routes of the ligands and of the complexes are discussed in detail.