Synthesis and reactivity of N@C60O.
The endohedral fullerene epoxide N@C60O was synthesised, isolated by High Performance Liquid Chromatography (HPLC), and characterised by Electron Spin Resonance (ESR). This nitrogen radical displays predominantly axial symmetry characteristics as expected for a monoadduct, evidenced by a zero-field...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1797058814315331584 |
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| author | Jones, M Britz, D Morton, J Khlobystov, A Porfyrakis, K Ardavan, A Briggs, G |
| author_facet | Jones, M Britz, D Morton, J Khlobystov, A Porfyrakis, K Ardavan, A Briggs, G |
| author_sort | Jones, M |
| collection | OXFORD |
| description | The endohedral fullerene epoxide N@C60O was synthesised, isolated by High Performance Liquid Chromatography (HPLC), and characterised by Electron Spin Resonance (ESR). This nitrogen radical displays predominantly axial symmetry characteristics as expected for a monoadduct, evidenced by a zero-field splitting D parameter of 6.6 MHz and an E parameter of 0.5 MHz in powder at 77 K. Photo- and thermally-activated silencing of the nitrogen radical were observed, the latter showing the evolution of a new spin signal during heating at 100 degrees C. We suggest that loss of nitrogen spin is due to coupling with a radical formed by opening of the epoxide ring. This implies that the reaction of C60O with C60 in the solid state proceeds via a radical, rather than ionic, intermediate. |
| first_indexed | 2024-03-06T19:55:40Z |
| format | Journal article |
| id | oxford-uuid:257e8b92-e564-42bf-80ba-384ade8d4d4e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:55:40Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:257e8b92-e564-42bf-80ba-384ade8d4d4e2022-03-26T11:55:57ZSynthesis and reactivity of N@C60O.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:257e8b92-e564-42bf-80ba-384ade8d4d4eEnglishSymplectic Elements at Oxford2006Jones, MBritz, DMorton, JKhlobystov, APorfyrakis, KArdavan, ABriggs, GThe endohedral fullerene epoxide N@C60O was synthesised, isolated by High Performance Liquid Chromatography (HPLC), and characterised by Electron Spin Resonance (ESR). This nitrogen radical displays predominantly axial symmetry characteristics as expected for a monoadduct, evidenced by a zero-field splitting D parameter of 6.6 MHz and an E parameter of 0.5 MHz in powder at 77 K. Photo- and thermally-activated silencing of the nitrogen radical were observed, the latter showing the evolution of a new spin signal during heating at 100 degrees C. We suggest that loss of nitrogen spin is due to coupling with a radical formed by opening of the epoxide ring. This implies that the reaction of C60O with C60 in the solid state proceeds via a radical, rather than ionic, intermediate. |
| spellingShingle | Jones, M Britz, D Morton, J Khlobystov, A Porfyrakis, K Ardavan, A Briggs, G Synthesis and reactivity of N@C60O. |
| title | Synthesis and reactivity of N@C60O. |
| title_full | Synthesis and reactivity of N@C60O. |
| title_fullStr | Synthesis and reactivity of N@C60O. |
| title_full_unstemmed | Synthesis and reactivity of N@C60O. |
| title_short | Synthesis and reactivity of N@C60O. |
| title_sort | synthesis and reactivity of n c60o |
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