dc.creator Gesenberg, Christoph 2007-08-21T01:46:52Z 2007-08-21T01:46:52Z 1997 https://hdl.handle.net/1911/19162 New synthetic routes leading to 1-vinylcyclopropene and methylenecyclopropene were established making use of the Vacuum Gas-Solid Reaction (VGSR) technique. Both syntheses were planned in a way that allowed the use of solid fluoride as the dehalosilylation inducing reagent in the last step. The decomposition of methylenecyclopropene at temperatures above $-$75$\sp\circ$C was investigated and a dimer of methylenecyclopropene was proposed as the initial decomposition product. Fullerenes have been synthesized and separated using chromatographic techniques. Helium containing isomers of higher fullerenes were analyzed by $\sp3$He NMR spectroscopy and signals were assigned to isomers of C$\sb{76}$, C$\sb{78}$ and C$\sb{84}$. A novel C$\sb{60}$ derivative has been synthesized by the reaction of C$\sb{60}$ with cyclopropa (b) naphthalene and the product of the reaction with $\sp3$He@C$\sb{60}$ revealed the signal of the new compound in the $\sp3$He NMR. Fullerene hydrides $\sp3$He@C$\sb{60}$H$\sb{36}$ and $\sp3$He@C$\sb{60}$H$\sb{18}$ were synthesized by Birch reduction or reaction of $\sp3$He@C$\sb{60}$ with dihydroanthracene and the products were analyzed by $\sp3$He NMR. The spectra revealed one isomer for C$\sb{60}$H$\sb{18}$ and two isomers for C$\sb{60}$H$\sb{36}$. The most intense signal for C$\sb{60}$H$\sb{36}$ was assigned to the isomer with D$\sb{\rm 3d\sp\prime}$ symmetry based on the $\sp3$He NMR chemical shift value. application/pdf eng Organic chemistry Synthesis of cyclopropene derivatives and chemistry of fullerenes Thesis Text Chemistry Natural Sciences Rice University Doctoral Doctor of Philosophy Gesenberg, Christoph. "Synthesis of cyclopropene derivatives and chemistry of fullerenes." (1997) Diss., Rice University. https://hdl.handle.net/1911/19162.
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