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

Autor: Olga Ekkert, Andrew J. P. White, Harold Toms, Mark R. Crimmin
Přispěvatelé: The Royal Society, Engineering & Physical Science Research Council (EPSRC), Commission of the European Communities
Jazyk: angličtina
Předmět:
Zdroj: Chemical Science
ISSN: 2041-6539
2041-6520
DOI: 10.1039/c5sc01309g
Popis: 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].
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.
Databáze: OpenAIRE