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Akademický článek

NMR lineshape analysis using analytical solutions of multi-state chemical exchange with applications to kinetics of host–guest systems

Autor: Václav Březina, Lenka Hanyková, Nadiia Velychkivska, Jonathan P. Hill, Jan Labuta

Publikováno v: Scientific Reports, Vol 12, Iss 1, Pp 1-15 (2022)

Abstract Nuclear magnetic resonance (NMR) lineshape analysis is a powerful tool for the study of chemical kinetics. Here we provide techniques for analysis of the relationship between experimentally observed spin kinetics (transitions between differe

Externí odkaz: https://doaj.org/article/105b9b0a9a1e40d18be4d2ee15d9577c

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Akademický článek

Pyrazinacenes exhibit on-surface oxidation-state-dependent conformational and self-assembly behaviours

Autor: David Miklík, S. Fatemeh Mousavi, Zuzana Burešová, Anna Middleton, Yoshitaka Matsushita, Jan Labuta, Aisha Ahsan, Luiza Buimaga-Iarinca, Paul A. Karr, Filip Bureš, Gary J. Richards, Pavel Švec, Toshiyuki Mori, Katsuhiko Ariga, Yutaka Wakayama, Cristian Morari, Francis D’Souza, Thomas A. Jung, Jonathan P. Hill

Publikováno v: Communications Chemistry, Vol 4, Iss 1, Pp 1-10 (2021)

Acenes are a promising class of organic materials with distinctive electronic and optical properties. Here decaazapentacene and octaazatetracenes are prepared and their self-assembly behaviour at different oxidation states is analysed.

Externí odkaz: https://doaj.org/article/909424714771438ba3a7987f6703d9f0

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Akademický článek

Multimodal switching of a redox-active macrocycle

Autor: Daniel T. Payne, Whitney A. Webre, Yoshitaka Matsushita, Nianyong Zhu, Zdenĕk Futera, Jan Labuta, Wipakorn Jevasuwan, Naoki Fukata, John S. Fossey, Francis D’Souza, Katsuhiko Ariga, Wolfgang Schmitt, Jonathan P. Hill

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)

Molecules that can switch between multiple stable states in response to stimuli are promising for many applications, but are challenging to construct. Here, the authors design a resorcinarene switching manifold with multiple oxidation states and coup

Externí odkaz: https://doaj.org/article/8c90602b192a41a78876b89a99a9ac13

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Akademický článek

Improving the Colloidal Stability of Temperature-Sensitive Poly(N‑isopropylacrylamide) Solutions Using Low Molecular Weight Hydrophobic Additives

Autor: Nadiia Velychkivska, Larisa Starovoytova, Václav Březina, Lenka Hanyková, Jonathan P. Hill, Jan Labuta

Publikováno v: ACS Omega, Vol 3, Iss 9, Pp 11865-11873 (2018)

Externí odkaz: https://doaj.org/article/237bcc0f09ab4b8aaffe4563a34c6c59

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Akademický článek

Estimation of Enantiomeric Excess Based on Rapid Host–Guest Exchange

Autor: Jan Labuta, Shinsuke Ishihara, Daniel T. Payne, Kazuyoshi Takimoto, Hisako Sato, Lenka Hanyková, Katsuhiko Ariga, Jonathan P. Hill

Publikováno v: Chemosensors, Vol 9, Iss 9, p 259 (2021)

Chiral molecules possess enantiomers that have non-superimposable chemical structures but exhibit identical nuclear magnetic resonance (NMR) spectra. This feature prevents the use of NMR spectroscopic methods for the determination of enantiomeric exc

Externí odkaz: https://doaj.org/article/9c687a2fe6ff4186b38cbb36318fe600

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Akademický článek

Dynamic Processes in Prochiral Solvating Agents (pro-CSAs) Studied by NMR Spectroscopy

Autor: Jan Labuta, Shinsuke Ishihara, Katsuhiko Ariga, Jonathan P. Hill

Publikováno v: Symmetry, Vol 6, Iss 2, Pp 345-367 (2014)

Several dynamic processes, including tautomerism and macrocyclic inversion, in 1H-NMR prochiral solvating agents (pro-CSAs) are investigated. Various features of pro-CSA, including modes of interaction for complex formation, stoichiometry, binding st

Externí odkaz: https://doaj.org/article/5fce1efffc034dff91aba0aec9be9d3d

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