146 research outputs found
Method of Solubilizing Single-Walled Carbon Nanotubes in Organic Solutions
Naked single-walled nanotube carbon metals and semiconductors are dissolved in various organic solutions
Method of Solubilizing Shortened Single-Walled Carbon Nanotubes in Organic Solutions
Naked single-walled nanotube carbon metals and semiconductors were dissolved in organic solutions by derivatization with SOCl2 and octadecylamine charge. Both ionic (charge transfer) and covalent solution phase chemistry with concomitant modulation of the single-walled carbon nanotubes (SWNT) band structure were demonstrated. Solution phase near-IR spectroscopy was used to study the effects of chemical modifications on the band gaps of the SWNTs. Reaction of solubilized SWNTs with dichlorocarbene led to functionalization of the nanotube walls
Solubilizing Single Walled Carbon Nanotubes by Direct Reaction with Amines and Alkylaryl Amines
Naked single-walled nanotube carbon metals and semiconductors are dissolved in organic solutions by direct functionalization with amines or alkylaryl amines having an uninterrupted carbon chain of at least 5 and more preferably 9 carbon atoms in length
Homoconjugation in Radical Cations
Recent studies of nuclear spin polarization effects in cyclopropane
derivatives have provided considerable information on the
structure as well as the spin and charge density distributions in
this class of radical ca,tions. In the present work we report an
extension of the frontier MO/perturbation MO theory of homoconjugation
to include such species in an attempt to rationalize
further the experimental results mentioned above, and to provide
guidelines for understanding the structures of radical cations
derived from other types of cyclopropane derivatives.
The structures observed for the radical ca\u271:ions of diphenylcyclopropane,
trimethylcyclopropane, and benzonorcaradiene are
rationalized, and the structures of the radical cations of spirocyclopropanefluorene
and vicinally cyclopolyene-substituted cyclopropanes
are predicted
Method of Solubilizing Carbon Nanotubes in Organic Solutions
Carbon nanotubes are dissolved in organic solutions by attaching an aliphatic carbon chain (which may contain aromatic residues) so as to render the carbon nanotubes soluble
Homoconjugation in Radical Cations
Recent studies of nuclear spin polarization effects in cyclopropane
derivatives have provided considerable information on the
structure as well as the spin and charge density distributions in
this class of radical ca,tions. In the present work we report an
extension of the frontier MO/perturbation MO theory of homoconjugation
to include such species in an attempt to rationalize
further the experimental results mentioned above, and to provide
guidelines for understanding the structures of radical cations
derived from other types of cyclopropane derivatives.
The structures observed for the radical ca\u271:ions of diphenylcyclopropane,
trimethylcyclopropane, and benzonorcaradiene are
rationalized, and the structures of the radical cations of spirocyclopropanefluorene
and vicinally cyclopolyene-substituted cyclopropanes
are predicted
Method of Solubilizing Unshortened Carbon Nanotubes in Organic Solutions
Naked carbon nanotubes are dissolved in organic solutions by terminating the nanotubes with carboxylic acid groups and attaching an aliphatic carbon chain so as to render the carbon nanotubes soluble
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