Towards water-tolerant ansa-aminoboranes for parahydrogen-induced polarization and beyond
Konsewicz, Karolina; Repo, Timo; Zhivonitko, Vladimir V (2025-03-05)
Royal society of chemistry
05.03.2025
Konsewicz, K., Repo, T., & Zhivonitko, V. V. (2025). Towards water-tolerant ansa -aminoboranes for parahydrogen-induced polarization and beyond. Chemical Communications, 10.1039.D5CC00528K. https://doi.org/10.1039/D5CC00528K
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This journal is © The Royal Society of Chemistry 2025. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
https://creativecommons.org/licenses/by/3.0/
This journal is © The Royal Society of Chemistry 2025. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
https://creativecommons.org/licenses/by/3.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202503182072
https://urn.fi/URN:NBN:fi:oulu-202503182072
Tiivistelmä
Abstract
Three orders of magnitude of 1H NMR signal enhancement were observed in the metal-free activation of parahydrogen using an ansa-aminoborane in the presence of a 100-fold water excess at 9.4 T. Kinetic studies corroborated the reversibility of water addition to the intramolecular N–B Lewis centers in both polar and nonpolar solvents. Furthermore, DFT modeling supported these results.
Three orders of magnitude of 1H NMR signal enhancement were observed in the metal-free activation of parahydrogen using an ansa-aminoborane in the presence of a 100-fold water excess at 9.4 T. Kinetic studies corroborated the reversibility of water addition to the intramolecular N–B Lewis centers in both polar and nonpolar solvents. Furthermore, DFT modeling supported these results.
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