Abstract
The reaction of RI (R = Me, Et or Pr) or [Et 3O][PF 6] with [NBU 4] trans-[Re(CN) 2(dppe) 2] (dppe = Ph 2PCH 2CH 2PPh 2) affords the diisocyanide complexes trans-[Re(CNR) 2(dppe) 2]A (R = Me, A = I; R = Pr, A =I 3; R = Et, A = PF 6, whereas trans-[Re(CNH)(CNSiMe 3)(dppe) 2]CF 3SO 3 is obtained from the reaction with Me 3SiO 3SCF 3. The X-ray crystal structure of trans-[Re(CNEt) 2)(dppe) 2]CF 6 was determined. The redox properties of the compounds were studied by cyclic voltammetry and controlled potential electrolysis, and are discussed in terms of the electronic properties of the metal centres and ligands.
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