Synthesis and 83Kr NMR spectroscopy of Kr@C60
Synthesis and 83Kr NMR spectroscopy of Kr@C60
Synthesis of Kr@C60 is achieved by quantitative high-pressure encapsulation of the noble gas into an open-fullerene, and subsequent cage closure. Krypton is the largest noble gas entrapped in C60 using ‘molecular surgery’ and Kr@C60 is prepared with >99.4% incorporation of the endohedral atom, in ca. 4% yield from C60. Encapsulation in C60 causes a shift of the 83Kr resonance by −39.5 ppm with respect to free 83Kr in solution. The 83Kr spin-lattice relaxation time T1 is approximately 36 times longer for Kr encapsulated in C60 than for free Kr in solution. This is the first characterisation of a stable Kr compound by 83Kr NMR.
11284-11287
Hoffman, Gabriela
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Bacanu, George R.
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Marsden, Elizabeth
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Walkey, Mark
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Sabba, Mohamed
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Bloodworth, Sally
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Tizzard, Graham J.
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Levitt, Malcolm H.
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Whitby, Richard J.
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6 October 2022
Hoffman, Gabriela
8b98ba1c-ee09-4922-82e4-a9240aa12e64
Bacanu, George R.
6ac562d2-cba9-4b2c-8749-83d2573f5821
Marsden, Elizabeth
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Walkey, Mark
432139de-52cb-4e28-9ad0-b254e0523775
Sabba, Mohamed
bef5e5e8-18b2-43d9-8969-4a9b25bb8691
Bloodworth, Sally
943160fc-1b70-4c29-b2e3-b7785cee8a0c
Tizzard, Graham J.
8474c0fa-40df-43a6-a662-7f3c4722dbf2
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
Whitby, Richard J.
45632236-ab00-4ad0-a02d-6209043e818b
Hoffman, Gabriela, Bacanu, George R., Marsden, Elizabeth, Walkey, Mark, Sabba, Mohamed, Bloodworth, Sally, Tizzard, Graham J., Levitt, Malcolm H. and Whitby, Richard J.
(2022)
Synthesis and 83Kr NMR spectroscopy of Kr@C60.
Chemical Communications, 2022 (80), .
(doi:10.1039/D2CC03398D).
Abstract
Synthesis of Kr@C60 is achieved by quantitative high-pressure encapsulation of the noble gas into an open-fullerene, and subsequent cage closure. Krypton is the largest noble gas entrapped in C60 using ‘molecular surgery’ and Kr@C60 is prepared with >99.4% incorporation of the endohedral atom, in ca. 4% yield from C60. Encapsulation in C60 causes a shift of the 83Kr resonance by −39.5 ppm with respect to free 83Kr in solution. The 83Kr spin-lattice relaxation time T1 is approximately 36 times longer for Kr encapsulated in C60 than for free Kr in solution. This is the first characterisation of a stable Kr compound by 83Kr NMR.
Text
d2cc03398d
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Accepted/In Press date: 11 September 2022
Published date: 6 October 2022
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© 2022 The Royal Society of Chemistry.
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Local EPrints ID: 471219
URI: http://eprints.soton.ac.uk/id/eprint/471219
ISSN: 1359-7345
PURE UUID: 21a65c22-0670-458c-9574-d2edadee76d9
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Date deposited: 31 Oct 2022 18:12
Last modified: 06 Jun 2024 02:10
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Author:
Gabriela Hoffman
Author:
George R. Bacanu
Author:
Elizabeth Marsden
Author:
Mark Walkey
Author:
Mohamed Sabba
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