Bi-Donor Ligands

Spectra depend on exciting e line and indicate the presence of two allowed transitions in the visible region 

Levason and C. A. McAuliffe, Inorg. Chim. Acta, 1975,15, 79. 

Reactions of SF02(0Me) and (Et30)(BF4) with transition-metal complexes have been examined (see p. Zll) With palladium under mild conditions ligand abstraction occurs [equation (11) M = Pd or Pt X = Cl, Br, or I L = amine, phosphine, arsine, or cyanide). I.r. spectra of alcoholic solutions of K2[Pd(SCN)4] with added phosphite, P(OR)3 (R = Et, Pr, Pr , Bu, Bu , or Bu ) have been interpreted in terms of formation of [Pd P(OR)3 4](SCN)2.  

Sb-co-ordinated species [M(dsbm)X2]2 and [M(dsbm)2Cl2] (M = Pd or Pt X = Cl, Br, or I dsbm = bisdiphenylstibinomethane) have been synthesized. Possible structures were proposed on the basis of electronic and i.r. spectral measurements and it appears likely that in the solid state the monomeric complexes are five-co-ordinate with bridging X groups. 

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Iron carbonyl complexes with As, Sb, Bi donor ligands, 6, 57 with boron, 6, 7 cyanides and isocyanides, 6, 15 Fe3(CO)i2, 6, 260... 

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