Phosphide complexes

Heteropolynudear phosphide complexes phosphorus as unique atom bridging coinage metal centers. Chemistry - A European Journal, 6(22), 4116-4123. 

During the cross-couplings to form C—N, C—O, C—S, and C—P bonds, the arylpalladium halide complexes are converted to arylpalladium amide, alkoxide, thiolate, and phosphide complexes. Examples of each type of complex have now been isolated, and the reductive elimination of the organic products has been studied. Although the reductive elimination to form carbon-hydrogen and carbon-carbon bonds is common, reductive elimination to form carbon-heteroatom bonds has been studied only recently. This reductive elimination chemistry has been reviewed.23... 

Heterometallic alkali metal phosphide complexes with transition metals have also been reported. The complex [(Cy2P)3Hf(ju.-PCy2)2Li (DME)] results from the reaction of LiPCy2 with HfCl4(THF) (98). This complex persists in solution. Jones et al. have reported the synthesis and reactivity toward a range of electrophiles of a series of lithium di-t-butylphosphido(alkyl)cuprates [RCu(PBu2)Li] (R = Me,... 

ESR studies of titaniiun(III) and zirconium(III) cyclopentadienylorgano-phosphide complexes have been reported but no studies of related dithiophosphate compounds have been described. 

Figures 12.2.7(e)-(g) show the core structures of three lithium phosphide complexes. Li(l t20)2(P Bu)2(Ga 2Bu3) has a puckered Ga2P2 four-membered ring, in which one Ga atom is four- and the other three-coordinated, as shown in Fig. 12.2.7(e). The Li-P bond length is 266 pm(av.).

Scheme 68 Proposed initial cation formation during the activation reaction of a half-lanthanidocene phosphide complex with [PI13C] (CgFsh] [270]...

In recent years, phosphide complexes have proved accessible ... 

Figure 13 The structure of a range of metal-phosphide complexes...

From the numerous NMR data on phosphametallocenes which are recorded in the literature, it is possible to extract two characteristic spectral features. First, the phosphametallocenes, contrary to most of the complexes of phosphorus ligands, have a resonance at high field. Table 18 gives some representative data. Thus, from this point of view, phosphametallocenes are very different from the classical P" compounds with their characteristic P resonances at very low field. There is no obvious explanation of this phenomenon. Just one remark may be made. In a normal 1-electron phosphide complex,... 

Protonation of a heteroleptic, cyclometallated lanthanum phosphide complex with [NEt3H][BPh4] was shown to occur at the La-P and not at the La-C bond, which allowed the isolation of a cationic lanthanum alkyl complex as shown in Scheme 22.157,158... 

Good examples of cyclic (mostly polycyclic) structures are provided by metal alkoxides. Some spectacular rings are the gold (I)-phosphide complexes of the type [AuPR2] (n = 3, 4 or 6). ... 

Nanometric particles of InP were readily prepared by the decomposition of an indium phosphide complex, In(PBu 2)3, at 167 °C in 4-ethylpyridine. The resulting material shows marked quantum confinement effects, and was investigated using optical absorption and photoluminescence spectroscopies, and TEM. " " Similar precursors were used... 

According to SAXS data, the molecules of platinum phosphide complex [(PPh2)Pt]g io are almost spherical in shape with a mean diameter of 15.2 A. Unlike the platinum analog, treatment of the palladium complex [ (Ph3 P)Pd(OAc)2]2... 

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