A Reversible NO-Triggered Multiple Metallaborane Cluster Fusion by Ligand Expulsion/Addition from (PMe2Ph)4Pt2B10H10 to Afford (PMe2Ph)8Pt8B40H40 and (PMe2Ph)5Pt4B20H20

0523884 - ÚACH 2021 RIV US eng J - Článek v odborném periodiku
Bould, Jonathan - Clegg, W. - Waddell, P. G. - Cvačka, Josef - Dušek, Michal - Londesborough, Michael Geoffrey Stephen
A Reversible NO-Triggered Multiple Metallaborane Cluster Fusion by Ligand Expulsion/Addition from (PMe2Ph)4Pt2B10H10 to Afford (PMe2Ph)8Pt8B40H40 and (PMe2Ph)5Pt4B20H20.
Inorganic Chemistry. Roč. 59, č. 7 (2020), s. 5030-5040. ISSN 0020-1669. E-ISSN 1520-510X
Grant CEP: GA ČR(CZ) GA18-20286S; GA ČR(CZ) GA18-10504S; GA MŠMT(CZ) LO1603
GRANT EU: European Commission(CZ) CZ.2.16/3.1.00/24510
Grant ostatní: AV ČR(CZ) StrategieAV21/10
Program: StrategieAV
Institucionální podpora: RVO:61388980 ; RVO:61388963 ; RVO:68378271
Klíčová slova: Hydrogen * Platinum * Ligands * Metal clusters
Obor OECD: Inorganic and nuclear chemistry; Organic chemistry (UOCHB-X); Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impakt faktor: 5.165, rok: 2020
Způsob publikování: Omezený přístup
https://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.0c00247

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.
Trvalý link: http://hdl.handle.net/11104/0308643


Vědecká data: CCDC