Copyright The Royal Society of Chemistry, 1998.

                      SUPPLEMENTARY DATA: TABLE 3.
                                    
                                    
        Dihydrogen Isotopomer Distribution Formed in the Reaction
   [NiH(dppe)2]+ in the Reaction Between [Ni(dppe)2] and DCl in
THF at
                                 25.00C.
                                    
                                    

[Ni(dppe)2]/mmol dm-3         [DCl]/mmol dm-3          HD/%     
D2/%
     5.0                      10.0             64        36
                              20.0             66        34
                              50.0             63        37
                              100.0                 67        33