21423-86-9Relevant articles and documents
Study of the Formation of the First Aromatic Rings in the Pyrolysis of Cyclopentene
Herbinet, Olivier,Rodriguez, Anne,Husson, Benoit,Battin-Leclerc, Frédérique,Wang, Zhandong,Cheng, Zhanjun,Qi, Fei
, p. 668 - 682 (2016/02/23)
The thermal decomposition of cyclopentene was studied in a jet-stirred reactor operated at constant pressure and temperature to provide new experimental information about the formation of the first aromatic rings from cyclic C5 species. Experim
Thermal decomposition of the halide and pseudohalide derivatives of bis(cyclopentadienyl)titanium(IV)
Brown, Gilbert M.
, p. 3028 - 3032 (2008/10/08)
The thermal decomposition reactions of Ti(Cp)2(X)2, where Cp is η5-C5H5 and X is Cl-, Br-, NCS-, NCO-, and N3-, were studied at atmospheric pressure by temperature-programmed pyrolysis with analysis of the evolved gas by mass spectroscopy. The gas evolution versus temperature profile showed that the compounds decomposed in a single, sharp, symmetrical step with the loss of cyclopentadiene observed from all compounds. The pseudohalide-containing compounds evolved products of the breakdown of this moiety simultaneously with C5H6. The gas evolution versus temperature profiles were used to measure ΔH? for the decomposition of the azide and cyanate compounds. The compound Ti(Cp)2(N3)2 was used for the chemical vapor deposition of titanium-containing films on quartz or CaF2 substrates at 400°C. Additional pyrolysis converts the film to an adherent, chemically resistant, refractory material. The infrared spectrum of the initial deposition product on a CaF2 substrate was obtained. Chemical analysis and IR spectroscopy suggest the film contains a large excess of carbon over that required for stoichiometric TiC. Hydrocarbon evolution probably occurs by a hydrogen abstraction mechanism, which leads to dehydrogenation of coordinated cyclopentadienyl. This dehydrogenated ring system appears to be the source of the excess carbon in the solid film.
