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Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Dr Paul Waddell
This is the 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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