Phosphine structural characterization

Assefa, Z Forward, J.M., Grant T.A., Staples, R.J., Hanson, B.E., Mohamed, A.A. and Fackler, J.P. Jr (2003) Three-coordinate, luminescent, water-soluble gold(l) phosphine complexes structural characterization and photoluminescence properties in aqueous solution. Inorganica Chimica Acta, 352, 31 5. 

Synthesis and structural characterization of linear Au(l) N-heterocyclic carbene complexes New analogues of the Au(l) phosphine drug auranofin. Journal of OrganometaUic Chemistry, 690, 5625-5635. 

Nitrosyl is now well established as a ligand for low-valent cobalt. The distorted tetrahedral [Co(NO)2(py)2]+ has been prepared and structurally characterized.132 In contrast to bis-phosphine... 

The bi- and tridentate phosphines dppp (l,3-bis(diphenylphosphino)propane) and dppep (bis (2-diphenylphosphinoethyl)phenylphosphine) have been complexed with Co and their divalent four- and five-coordinated thiophenolate complexes Co(dppp)(SPh)2 and Co(dppep)(SPh)2 have been isolated and structurally characterized.379 Somewhat related to dppp is the bidentate silane Ph2PCH2SiMe2CH2PPh2, which forms high-spin, pseudo-tetrahedral dihalocobalt(II) complexes.380... 

Chelation of ixo-maleonitriledithiolate (imdt) has been structurally characterized in the octahedral cobalt(III) complex trmw-[Co(imdt)2(P(ra-Bu)3)2], formed via reaction of cobalt(II) ion with K2(imdt) in the presence of the phosphine.1037 Simple chelating thiolates such as SCH2CH2S not only form mononuclear compounds, but participate in bridging in clusters such as [Co3(SCH2CH2S)3(PEt3)3]3+ (243).1038... 

The structure of [IrCl2(edmp)2]PF6, (193), edmp = (2-aminoethyl)dimethyl phosphine, confirms that the coordination geometry around the Ir center is approximately octahedral. If the edmp ligand is replaced by edpp, edpp = (2-aminoethyl)diphenylphosphine, then the isomeric form (194) may be isolated and structurally characterized. The X-ray crystal structure of fac-[Ir(edmp)3]Cl3 5H20 has also been reported.338... 

Reaction of [cp IrCl2]2 with 2,6-dimethoxyphenyl(diphenylphosphine), mdmpp, gives (222), and with tris(2,6-dimethoxyphenyl)phosphine, tdmpp, gives (223).394 Addition of tcne to a CH2C12 solution of (222) yields the structurally characterized complex (224), in which tcne has inserted into a C—11 aromatic bond.395 The complex (223) reacts with one molar equivalent of tcne to give (225), and with two molar equivalents to give (226) both have been analyzed by X-ray crystallography.396... 

Zinc telluride and zinc selenide polymetallic species with phosphine ligands have been structurally characterized 301 further details are discussed in Section 6.8.7. The use of mono- and bidentate phosphine ligands of varying steric bulk contributes to the variation of structural types in the formation of zinc tellurolate polyzinc species with Zn10, Zn14, and Zn16 species structurally characterized by Fenske et al.30... 

The tetrameric zinc anion [Zn4(//-ScPh)r,(ScPh)4]2 has been structurally characterized as the first example of a Zn4Se4 adamantane cage-type structure.594 A further example was characterized by Bochmann and co-workers as part of a study of polymetallic zinc selenophenolates, in this case with chlorides replacing the terminal selenophenolates, [Zn4(/u-SePh)6Cl4]. Octameric zinc species were also characterized with either chloride or phosphine ligands resulting in anionic and neutral complexes respectively, [Zn8(/x-SePh)12Cl4]2 and Zn8(yu-SePh)12(SePh)2 (P Pr3)2.301... 

Treatment of 4 with either PF3 or 13CO results in CO substitution believed to proceed via a dissociative process yielding Ti(CO)2(PF3)-(dmpe)2 (6) and Ti(13CO)3(dmpe)2. Structural characterization of 6 showed it also to be monomeric, but possessing a monocapped trigonal prismatic geometry. Complexes 4, 5, and 6 may be considered phosphine-substituted derivatives of the as yet unisolated Ti(CO)7, thus representing the only isolable titanium carbonyl complexes where the titanium atom is in the zero oxidation state. 

Complexes of the type (L)AuR have been isolated with a large variety of donors L, including predominantly tertiary phosphines and isocyanides. The dinuclear complex (dppm)(AuMe)2 has been prepared by treatment of (dppm)(AuCl)2 with MeLi and structurally characterized.17 Examples (L)AuR with a carbene ligand L are also known. A simple methyl compound was prepared from the chloride complex with dimethylmagnesium (Equation (l)).18... 

The heavier alkali metal phosphides M P(SiMe3)2 (M = K, Rb, Cs) have been synthesized by P-Si cleavage of the corresponding trisilyl-phosphine with MOBu1 and have been structurally characterized as their THF adducts [M P(SiMe3)2 (THF)]x (21). The greater size of the... 

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