Issue 29, 2025
From the journal:

Chemical Communications

Towards water-tolerant ansa-aminoboranes for parahydrogen-induced polarization and beyond†

Karolina Konsewicz,a   Timo Repo ORCID logo b  and  Vladimir V. Zhivonitko ORCID logo *a  

* Corresponding authors

a NMR Research Unit, Faculty of Science, University of Oulu, P.O. Box 3000, Oulu, Finland
E-mail: vladimir.zhivonitko@oulu.fi

b Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, Helsinki, Finland

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.

Graphical abstract: Towards water-tolerant ansa-aminoboranes for parahydrogen-induced polarization and beyond

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Article information

DOI
https://doi.org/10.1039/D5CC00528K
Article type
Communication
Submitted
28 Jan 2025
Accepted
04 Mar 2025
First published
05 Mar 2025
This article is Open Access
Creative Commons BY license

Chem. Commun., 2025,61, 5443-5446

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Towards water-tolerant ansa-aminoboranes for parahydrogen-induced polarization and beyond

K. Konsewicz, T. Repo and V. V. Zhivonitko, Chem. Commun., 2025, 61, 5443 DOI: 10.1039/D5CC00528K

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