Preparation,structure,and property of organic isothiocyanide-Fe(II) complexes,trans-[FeH(NCSR)(dppe)_2][X](dppe=Ph_2PCH_2CH_2PPh_2;R=Me,Et,Pr,i-Pr,CH_2CH=CH_2,CH_2CCH;X=I,Br,CF_3SO_3,BF_4)

摘要

The compound trans-[FeH(Cl)(dppe)_2](1)reacted with KSCN to give trans-[FeH(NCS)(dppe)_2](2),which underwent electrophilic attack by alkyl iodides or alkyl bromides (RX) to give organic isothiocyanide-Fe(II) complexes of the type trans-[FeH(NCSR)(dppe)_2]X{X=I:R=Me(3),Et(4),Pr(5),CH_2CH=CH_2(6),i-Pr(7);X=Br:R=Pr(8),CH_2CH=CH_2(9),CH_2C ac ident to CH(10)}.Comjpound 2 also reacted with strong electrohphiles,MeSO_3CF_3 and Me_3O·BF_4,to give trans-[FeH(NC-SMe)(dppe)_2][SO_3CF_3](11) and trans-[FeH(NCSMe)(dppe)_2][BF_4](12),respectively.Compounds 2 and 11 were characterized structurally by X-ray diffraction,in which the hydride ligand appears to be involved in the dihydrogen bonding,M-H…H-C.