Square Planar Ru( <i> <sup>i</sup> </i> Pr <sub>2</sub> PCH <sub>2</sub> CH <sub>2</sub> NH) <sub>2</sub> and its Role in Fast and Selective Catalytic Amine–Borane Dehydropolymerization to Form High Molecular Weight Polyaminoboranes
Abstract Addition of t BuOK to orange RuCl 2 ( i Pr 2 PCH 2 CH 2 NH 2 ) 2 forms the pink, square planar, Ru(II) complex Ru( i Pr 2 PCH 2 CH 2 NH) 2 . This is an active catalyst (ToF 250 s −1 ) for the dehydropolymerization of H 3 B·NMeH 2 to give high molecular weight polyaminoborane, [H 2 BNMeH] n ( M n = 138 700 g mol −1 ) at low loadings (0.03 mol%). An induction period observed is due to the initial formation of a hydroxy‐hydride species, Ru( i Pr 2 PCH 2 CH 2 NH 2 ) 2 (OH)(H), prior to fast turnover.
Authors
- M. Arif Sajjad (ORCID: https://orcid.org/0000-0002-4119-9912)
- Andrew S. Weller (ORCID: https://orcid.org/0000-0003-1646-8081)
- Mathew J. Cross (ORCID: https://orcid.org/0000-0003-3495-442X)
- Stuart A. Macgregor (ORCID: https://orcid.org/0000-0003-3454-6776)
Institutions
- University of St Andrews (GB)
- University of York (GB)
Publication Details
- Journal
- Angewandte Chemie
- Published
- 2025-04-08
- DOI
- https://doi.org/10.1002/ange.202500019
- Primary Topic
- Hydrogen Storage and Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00