Squeezing formaldehyde into C60 fullerene

Autor: Vijyesh K. Vyas, George R. Bacanu, Murari Soundararajan, Elizabeth S. Marsden, Tanzeeha Jafari, Anna Shugai, Mark E. Light, Urmas Nagel, Toomas Rõõm, Malcolm H. Levitt, Richard J. Whitby

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)

Abstract The cavity inside fullerene C60 provides a highly symmetric and inert environment for housing atoms and small molecules. Here we report the encapsulation of formaldehyde inside C60 by molecular surgery, yielding the supermolecular complex CH

Externí odkaz: https://doaj.org/article/6a5940fd03964202935337481b8b97fb

Scalable dissolution-dynamic nuclear polarization with rapid transfer of a polarized solid

Autor: Karel Kouřil, Hana Kouřilová, Samuel Bartram, Malcolm H. Levitt, Benno Meier

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)

Dissolution-dynamic nuclear polarization is able to enhance nuclear magnetic resonance signals, but requires complex procedures to generate hyperpolarized nuclear spins. Here the authors establish a fast and facile method to transfer hyperpolarized s

Externí odkaz: https://doaj.org/article/9f67a0c7eed34642b02b4806db4b0bfe

The Aharonov-Anandan phase and geometric double-quantum excitation in strongly-coupled nuclear spin pairs

Autor: Christian Bengs, Mohamed Sabba, Malcolm H. Levitt

The Aharonov–Anandan phase is a contribution to the phase acquired by the cyclic evolution of a quantum state, which depends only on the geometric properties of its trajectory. We report the study and the exploitation of the Aharonov–Anandan phas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac6ad11e941852ff7e77a989f1d3c6f9
https://eprints.soton.ac.uk/477037/

Rapid hyperpolarization and purification of the metabolite fumarate in aqueous solution

Autor: John W. Blanchard, Laurynas Dagys, Dmitry Budker, Eleonora Cavallari, Malcolm H. Levitt, Gerd Buntkowsky, Maksim Tsukanov, Danila A. Barskiy, Alexander Pines, Francesca Reineri, Kerstin Münnemann, Stephan Knecht, Silvio Aime, James Eills, Erik van Dyke, Peter Blümler, Bea Bliemel

Publikováno v: Proceedings of the National Academy of Sciences of the United States of America 118(13), e2025383118 (2021). doi:10.1073/pnas.2025383118
Proceedings of the National Academy of Sciences of the United States of America, vol 118, iss 13
Proceedings of the National Academy of Sciences
chemRxiv
Proceedings of the National Academy of Sciences of the United States of America

Significance Magnetic resonance imaging is hindered by inherently low sensitivity, which limits the method for the most part to observing water molecules in the body. Hyperpolarized molecules exhibit strongly enhanced MRI signals which opens the door

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ca142476cf51bdb28120de5a884a2c

Synthesis and 83Kr NMR spectroscopy of Kr@C60

Autor: Gabriela Hoffman, George R. Bacanu, Elizabeth S. Marsden, Mark C. Walkey, Mohamed Sabba, Sally Bloodworth, Graham J. Tizzard, Malcolm H. Levitt, Richard J. Whitby

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 w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed90921ff033c442aed558ce4ac70bc8
https://eprints.soton.ac.uk/471219/