Carbene complexes. Part VI. Complexes from imidoyl chloride and rhodium(I) precursors, and the crystal and molecular structure of carbonyltri-iodo-[α-(N-methyl-α-methyliminobenzylamino)benzylidene-N,C]rhodium, I3(OC)Rh–CPh(NMe)CPh:NMe
- 1 January 1974
- journal article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 1,p. 68-74
- https://doi.org/10.1039/dt9740000068
Abstract
The reaction of an imidoyl chloride R1C(Cl):NR2 with the RhI complex [Rh(CO)2Cl]2 in the rigorous absence of hydrogen chloride affords the RhIII carbene chelate Cl3(OC)[graphic omitted]R2. The chloride ligands are replaceable by Br– or I–, and the chelate bridge is cleaved by reaction with a tertiary phosphine. A single-crystal X-ray analysis of (IV) I3(OC)[graphic omitted]Me by the heavy-atom method has been refined to R 0·047 for 2400 independent terms measured on a diffractometer: the complex has an approximately octahedral Rh environment, with Rh–C(carb) 1·968(13), C(carb)–N 1·328(16), Rh–N 2·047(9), Rh–I 2·662(4)—2·774(4), and Rh–C(O) 1·892(14)Å. Crystals are monoclinic, a= 10·83(1), b= 17·24(2), c= 11·52(1)Å, β= 97·3(2)°, Z= 4, space group P21/n.Keywords
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