Synthesis of the first completely spin-compatible N@C60 cyclopropane derivatives by carefully tuning the DBU base catalystElectronic supplementary information (ESI) available: MS, UV-vis and 1H-NMR data for products 3 and 5, the spin number evolution after the end of the main reaction (fourfold excess of DBU catalyst). See DOI: 10.1039/c5cc01459j

Two cyclopropane derivatives of N@C 60 were synthesised by well-controlled Bingel reactions, in which 94% of the spin centres were retained, as confirmed by a series of quantitative electron spin paramagnetic resonance (EPR) measurements. Further study on the influence of the DBU catalyst base revea...

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Main Authors: Zhou, Shen, Rašovi, Ilija, Briggs, G. Andrew D, Porfyrakis, Kyriakos
Format: Article
Language:English
Online Access:Get full text
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Summary:Two cyclopropane derivatives of N@C 60 were synthesised by well-controlled Bingel reactions, in which 94% of the spin centres were retained, as confirmed by a series of quantitative electron spin paramagnetic resonance (EPR) measurements. Further study on the influence of the DBU catalyst base revealed a spin loss mechanism through a fullerene-DBU diradical. Two cyclopropane derivatives of N@C 60 were synthesised by well-controlled Bingel reactions, in which 94% of the spin centres were retained, as confirmed by a series of quantitative electron spin paramagnetic resonance (EPR) measurements.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc01459j