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Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Dr Paul Waddell
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2020.
For re-use rights please refer to the publisher's terms and conditions.
© 2020 American Chemical Society. The dimetallic boron hydride cluster, (PMe2Ph)4Pt2B10H10 (1-Pt2), is known to reversibly sequester small molecules (e.g., O2, CO, and SO2) across its Pt-Pt cluster vector. Here, we report the very different effect of the addition of nitric oxide (NO) to solutions of (1-Pt2) that prompts the elimination of some of its phosphine ligands and the autofusion of the resultant {(PMe2Ph)xPt2B10H10} units to afford the metallaborane conglomerates (PMe2Ph)8Pt8B40H40 (2-Pt8, 38%) and (PMe2Ph)5Pt4B20H20 (3-Pt4, 34%). Single-crystal X-ray studies of these multicluster assemblies reveal the links between the clusters to be a combination of both Pt-Pt bonds and Pt-μH-B 2-electron, 3-center bonds in (2-Pt8) and Pt-μH-B 2-electron, 3-center bonds in (3-Pt4). For compound (2-Pt8), the cluster assemblage can be effectively reversed by the addition of ethyl isonitrile (EtNC) to afford (EtNC)3(PMe2Ph)2Pt2B10H10 4 in quantitative yield. The compounds were characterized by mass spectrometry, multielement NMR spectroscopy, and single-crystal X-ray diffraction studies.
Author(s): Bould J, Clegg W, Waddell PG, Cvacka J, Dusek M, Londesborough MGS
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
Year: 2020
Volume: 59
Issue: 7
Pages: 5030-5040
Print publication date: 06/04/2020
Online publication date: 24/03/2020
Acceptance date: 23/01/2020
Date deposited: 12/03/2020
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: American Chemical Society
URL: https://doi.org/10.1021/acs.inorgchem.0c00247
DOI: 10.1021/acs.inorgchem.0c00247
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