Number of the records: 1
A simple and high-yield route to iridium, rhodium, osmium and ruthenium nido-6-metalladecaborane compounds
- 1.
SYSNO ASEP 0548676 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A simple and high-yield route to iridium, rhodium, osmium and ruthenium nido-6-metalladecaborane compounds Author(s) Bould, Jonathan (UACH-T) SAI, RID, ORCID
Londesborough, Michael Geoffrey Stephen (UACH-T) SAI, RID, ORCID
Passarelli, V. (ES)
Clegg, W. (GB)
Waddell, P. G. (GB)
Cvačka, Josef (UOCHB-X) RID, ORCID
Macias, R. (ES)Number of authors 7 Source Title Dalton Transactions. - : Royal Society of Chemistry - ISSN 1477-9226
Roč. 50, č. 45 (2021), s. 16751-16764Number of pages 14 s. Language eng - English Country GB - United Kingdom Keywords 10-vertex metallaborane chemistry ; nuclear-magnetic-resonance ; polyhedral ruthenaborane chemistry ; containing cluster chemistry Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry Subject RIV - cooperation Institute of Organic Chemistry and Biochemistry - Analytical Chemistry, Separation R&D Projects GA18-20286S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UACH-T - RVO:61388980 ; UOCHB-X - RVO:61388963 UT WOS 000717119100001 EID SCOPUS 85120477514 DOI 10.1039/d1dt02971a Annotation We report a high-yield heterogeneous solid/liquid phase synthetic method to a series of nido-6-metalladecaboranes. The hydridoirida- and hydridorhoda-decaboranes, [6,6,6-H(PPh3)(2)-nido-6-MB9H13] [M = Ir (1), Rh (2)] are isolatable in 98% yields from the reaction of the square-planar M(I) complexes, [MCl(PPh3)(3)] (M = Rh, Ir), with K[B9H14]. The same synthetic procedure, but using [MCl(CO)H(PPh3)(3)] (M = Ru, Os) as metal starting reagents produces the CO-ligated clusters, [6,6,6-(CO)(PPh3)(2)-nido-6-MB9H13] [M = Ru (3), Os (4)], in yields of 83% and 95%, respectively. These highly convenient syntheses permit the investigation of the reaction chemistry of the new nido-6-metalladecaboranes. Thus, the CO-ligated compounds, 3 and 4, react with the square-planar platinum(II) complex, [PtCl2(PMe2Ph)(2)], in the presence of potassium triethylborohydride, to give the bimetallic clusters, [1,1,1-(CO)H(PPh3)-isocloso-1-RuB9H8-mu-(1,2)-{Pt(PMe2Ph)(2)}] (5) and [7,7-(PMe2Ph)(2)-9,9,9-(CO)(PPh3)(2)-nido-7,9-PtOsB9H11] (6), and the monometallic nido-5-osamadecaborane, [5,5,5-(PPh3)(2)(CO)-nido-5-OsB9H13] (7). This reactivity illustrates the potential of polyhedral boron-based clusters as molecular scaffolds (“B-frames”) for the construction of multimetallic species. Single-crystal X-ray diffraction analyses have revealed the molecular structures of 3, 5, 6 and 7, the compounds are also studied by multielement NMR spectroscopy, mass spectrometry, IR spectroscopy, and in some cases computationally. Futhermore, the rotation of the {M(X)(PR3)(2)} moiety (X = H, CO), as PH3-ligated models, is studied by means of DFT-calculated relaxed potential energy surface scans, giving some insight into the lability of the metal-to-borane fragment interaction and of the exo-polyhedral ligands. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2022 Electronic address https://doi.org/10.1039/D1DT02971A
Number of the records: 1