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Issue 10, 2015
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Addition of aluminium, zinc and magnesium hydrides to rhodium(III)

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Abstract

We report the addition of M–H bonds (M = Al, Zn, Mg) to a Rh(III) intermediate generated from the reductive elimination of triethylsilane from [Cp*Rh(H)2(SiEt3)2]. A series of new heterobimetallic complexes possessing Rh–M bonds have been isolated and characterised by a number of spectroscopic (1H, 29Si, 13C, 103Rh NMR, infrared, and X-ray diffraction) and computational techniques (NBO and QTAIM analysis). Experimental and computational data are consistent with cleavage of the M–H bond upon addition to rhodium with formation of new Rh–M and Rh–H bonds. Upon photolysis the Al analogue of this series undergoes a further elimination reaction producing triethylsilane and a highly unusual Rh2Al2H4 containing cluster proposed to contain an Al(I) bridging ligand.

Graphical abstract: Addition of aluminium, zinc and magnesium hydrides to rhodium(iii)

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Publication details

The article was received on 11 Apr 2015, accepted on 03 Jul 2015 and first published on 03 Jul 2015


Article type: Edge Article
DOI: 10.1039/C5SC01309G
Citation: Chem. Sci., 2015,6, 5617-5622
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    Addition of aluminium, zinc and magnesium hydrides to rhodium(III)

    O. Ekkert, A. J. P. White, H. Toms and M. R. Crimmin, Chem. Sci., 2015, 6, 5617
    DOI: 10.1039/C5SC01309G

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