The reaction of Cp2TiCl2 with either the mono- or dipotassium salt of acetylenedicarboxylic acid (ADC) gives high yields of an insoluble orange product. The insoluble compound shows potential semiconductor behavior, as evidenced by an apparent bandgap in the orange region of the visible spectrum. Under N2 ,the compound decomposes at 238° C, eventually losing approximately 46% total mass up to 1350° C. The exothermic decomposition in air, beginning at 235° C, results in the formation of titanium oxides.
Hagler, Tanya L.; Draganjac, Mark; Nave, Paul M.; Bennett, J. Ed; Kahn, Farooq; Engelken, Robert; Williams, Chris; Poole, Chris; and Yu, Kwok Fai
"Reaction of Titanocene Dichloride with Acetylenedicarboxylate,"
Journal of the Arkansas Academy of Science: Vol. 48
, Article 13.
Available at: http://scholarworks.uark.edu/jaas/vol48/iss1/13