【摘要】 本文报道某些芳香族羟肟及其过渡金属铜、镍、钴和铁配合物的EI质谱,借助亚稳跃迁、高分辨质谱和稳定同位素¹⁵N、⁶³Cu、和⁶⁵Cu标记物,讨论其断裂途径,总结断裂规律.更多还原

【Abstract】 The EI mass spectra of salicyladoxime,2-hydroxyacetophenone oxime,2-hydro-xybenzophenone oxime,2-hydroxy-4-methoxybenzophenone oxime and bisaromatic hydro-xyloxime metal[Cu（II）,Ni（II）,Co（II） and Fe（II）]complexes have been studied using high resolution mass spectrometry,metastable ion measurements and the stable isotopes ¹⁵N,⁶³Cu and ⁶⁵Cu labelling to elucidate the fragmentation pathways.It has been found that the spectra of all compounds（1—24）except Fe-complex（24）show molecular ions.The relative intensity of molecular ions of complexes is closely related to the electronic nature of substituents.In all metal-complexes（9—22）the main decomposition pathways involve the successive loss of O,NO and then H₂O or LH. In these spectra the fragment ions of metal free species resulting from the cleavage of the dioxime ligands can be discriminated.更多还原