Addition of aluminium,zinc and magnesium hydrides to rhodium(iii)
|
| |
| Authors: | Olga Ekkert Andrew J P White Harold Toms Mark R Crimmin |
| |
| Institution: | a Department , of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK . Email: ; b The School of Biological and Chemical Sciences , Queen Mary, University of London , Mile End Road , London E1 4NS , UK |
| |
| 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. |
| |
| Keywords: | |
|
|
