Mass Spectrometry of Organometallics. I. Titanium Cyclopentadieny Complexes

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Abstract
The possibility of mass spectral analysis of less volatile and air sensitive organometallic compunds has been studied with an electron-impact, Muttauch-type mass spectrograph. Several organotitanium compounds, (C5H5)2Ti, (C5H5)2Ti-methylacetylene complex, (C5H5)2Ti-allylchlorideand (C5H5)2TiCl2-AlEt2Cl complex, have been subjected to mass spectral analysis, and the parent ion has been detected for each compound. The (C5H5)2Ti-methylacetylene complex gave a parent ion of (C5H5)2Ti(C3H4)2+; NMR and IR suggested the structure as a five-membered cyclic diene complex of (C5H5)2Ti. The (C5H5)2Ti-allylchloride gave a parent ion of (C5H5)2-Ti(C3H5)+ which proves the existence of allyl complex of (C5H5)2Ti. The (C5H5)2TiCl2-AlEt2Cl complex gave a parent ion of (C5H5)2TiCl2AlEtCl+ which is in agreement with the composition reported in the literature.