Related Experiment Videos
Separation of N2@C60 and N@C60
Tomohiro Suetsuna1, Nita Dragoe, Wolfgang Harneit
1Department of Advanced Materials Science, University of Tokyo, Tokyo 113-8656, Japan.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|November 2, 2002
Summary
Researchers successfully separated and identified nitrogen (N@C60) and nitrogen dimer (N2@C60) inside buckminsterfullerene (C60) using HPLC. This marks the first evidence of the N2@C60 molecule as an endohedral C60 complex.
Area of Science:
- Fullerenes chemistry
- Nanomaterials science
- Separation science
Background:
- Endohedral fullerenes, where atoms are encapsulated within fullerene cages, are of significant interest.
- Previous research has focused on noble gas and metallic atom encapsulation within C60.
Purpose of the Study:
- To achieve the separation and identification of nitrogen (N@C60) and nitrogen dimer (N2@C60) endohedral fullerenes.
- To provide the first evidence for the existence of the N2@C60 molecule as an endohedral complex.
Main Methods:
- High-Performance Liquid Chromatography (HPLC) was employed for sequential separation.
- A hexane/toluene mixture was used as the eluent to evaluate separation factors.
Main Results:
- Nitrogen (N@C60) and nitrogen dimer (N2@C60) species were successfully separated and identified after eleven sequential HPLC steps.
- The retention times of these endohedrals were comparable to noninteractive endohedral C60 species, such as noble gas endohedrals.
- The separation factors for these endohedrals were determined.
Conclusions:
- This study presents the first definitive evidence for the N2@C60 molecule existing as an endohedral C60 complex.
- The successful HPLC separation demonstrates a viable method for isolating and characterizing such nitrogen-based endohedral fullerenes.