Aggregation and interactions of C 60 and C 70 fullerenes in neat N-methylpyrrolidinone and in N-methylpyrrolidinone/toluene mixtures

M Alfè,B Apicella,R Barbella,A Bruno,A Ciajolo

doi:10.1016/j.cplett.2005.02.030

Aggregation and interactions of C 60 and C 70 fullerenes in neat N-methylpyrrolidinone and in N-methylpyrrolidinone/toluene mixtures

M Alfè, B Apicella + Show 3 more

https://doi.org/10.1016/j.cplett.2005.02.030

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Journal: Chemical physics letters	Publication Date: Mar 1, 2005
Citations: 40

Affiliation: University of Naples Federico II, Institute for Research on Combustion

#Time Resolved Fluorescence Polarization Anisotropy #N-methylpyrrolidinone + Show 8 more

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Abstract

A strong solvatochromic effect leading to the loss of the fine structure of UV–visible spectra and to the change of the specific absorption was observed for C 60 and C 70 fullerenes in N-methylpyrrolidinone (NMP). The C 60 and C 70 fullerene interactions in NMP solutions were studied by using time resolved fluorescence polarization anisotropy and dynamic light scattering techniques aiming to the determination of fullerene sizes. The process was studied as time dependent in toluene/NMP solutions and both the formation of fullerenes aggregates and specific interactions between fullerenes and NMP were observed.

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