Tris(2-imidazolyl)phosphine hemihydrate

Copping, D.; Frampton, Christopher S.; Howard-Lock, H. E.; Lock, C. J. L.

doi:10.1107/s0108270191010119

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…The P−C bond lengths (1.813(2)−1.827(2) Å) and the C−P−C bond angles (98.39(1)−102.24(1)°) are similar to those found for tris[2-(1-methyl-4-tolylimidazolyl)]phosphine . Ligand 1 exhibits the chiral propeller arrangement often seen in triarylphosphines. , With respect to the plane defined by the N-donor atoms N2, N4, and N6, two of the vinyl groups are pointing “up” and one “down”. If such a conformation would be fixed by polymerization, the immobilized ligand would not be able to act as a tridentate N , N ‘, N ‘ ‘-ligand.…”

Section: Resultssupporting

confidence: 56%

“…16 Ligand 1 exhibits the chiral propeller arrangement often seen in triarylphosphines. 16,17 With respect to the plane defined by the N-donor atoms N2, N4, and N6, two of the vinyl groups are pointing "up" and one "down". If such a conformation would be fixed by polymerization, the immobilized ligand would not be able to act as a tridentate N,N′,N′′-ligand.…”

Section: Resultsmentioning

confidence: 99%

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Highly Cross-linked Polymers Containing N,N‘,N‘ ‘-Chelate Ligands for the Cu(II)-Mediated Hydrolysis of Phosphoesters

et al. 2005

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Three immobilized Cu(II) complexes were generated by the following: (a) homopolymerization of the N,N',N' '-chelate ligand tris[2-(1-vinylimidazolyl)]phosphine (1) and subsequent metalation with CuCl2; (b) copolymerization of 1 with ethyleneglycol dimethacrylate (EGDMA) und subsequent metalation with CuCl2; or (c) molecular imprinting with the organometallic Mo-complex [Mo(eta3-C4H7)(CO)2(1)](TsO) (5) and EGDMA and subsequent replacement of Mo(II) by Cu(II). All three polymeric Cu complexes were found to efficiently promote the hydrolysis of activated phosphoesters with the relative activity being dependent on the nature of the polymer and the substrate.

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Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 99%

Highly Cross-linked Polymers Containing N,N‘,N‘ ‘-Chelate Ligands for the Cu(II)-Mediated Hydrolysis of Phosphoesters

et al. 2005

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“…Severance of P-C bonds in tris(imidazolyl)phosphines has been observed previously by other authors in attempts to prepare chloro[tris(4,5-dimethylimidazol-2-yl)phosphine]gold(I) leading to the formation of a bis(carbene)gold(I) derivative, 15 and tris(imidazol-2-yl)phosphine which converts into bis(imidazol-2-yl)phosphinic acid. 16 As hydrolysis was not observed during the preparation of 3a the hydrolysis of tris(thiazolyl)phosphines was further investigated. For this purpose 2c was dissolved in DMSO-d 6 and one equivalent of aqueous NaOH added.…”

Section: Resultsmentioning

confidence: 99%