八配位β－二酮锆的质谱研究

Mass Spectrometric Study of Zirconium (Ⅳ)β-Diketonates

八配位β－二酮锆的质谱研究梁泽斌柴璋，李碧钦（北方工业大学化学系，北京，１０００４１）（中国科学技术大学研究生院化学部）关键词β－二酮锆，质谱，分子离子八配位β－二酮锆是制做氧化锆膜的气相淀积源材料。了解这些化合物的气相分解历程以及分解产物对控制气相...

The mass spectra of eight-coordinateacetylacetona zirconium(Ⅳ)were studied.The ion fragmentation pathways in the mass spectra are investigated on the fragment ions of acetylacetonatezirconium. Zrconium oxide [ZrO2H]+ is the smallest metal-containing frag ment resulting from Zr(acac)4 ion dissociation reaction. The molecular ion is obtained by regulating the degree of desolvation of sample molecules introduced into the ion source with the continuous flow probe and the analytes is the solution of Zr(acac)4in acetylacetone. The mass spectra of eight-coordinate trifluoro-acetylacetonatezirconium are reported in brief.