Cleavage of the P–C bond in [PtCl2(Ph2PCH2PPh2-P,P′)] under mild conditions

Alcock, Nathaniel W.; Bergamini, Paola; Kemp, Terence J.; Pringle, Paul G.

doi:10.1039/c39870000235

Cited by 40 publications

(43 citation statements)

References 2 publications

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“…This material may be purchased from the Depository of Unpublished Data, CISTI, National Research Council of Canada, Ottawa, Ont., Canada KIA 0S2. A) are similar to those reported for complexes with simple amino acids (8,17). Mercury binds less readi!y to harder oxygen sites, but the Hg-O(8) distance (2.07(2) A) indicates a normal single bond (22) in the [(CH3Hg),G1yGly]+ ion.…”

Section: Description Of the Structuressupporting

confidence: 65%

“…In both of our compounds, one such secondary bond with Hg (1) (Table 3). Although weaker than the contact with a free carb~xylate oxygen in the tyrosine complex (Hg.e.0 = 2.62(2) A) (17), this interaction is strong enough to control the conformation at this end of the complexes.…”

Section: Description Of the Structuresmentioning

confidence: 99%

“…Relying mainly on 'H nmr spectroscopy, Rabenstein et al (15,16) have investigated the equilibrium reactions between the CH3Hg+ cation and various amino acids in aqueous solutions. The only available crystal structure with a non-sulfur-containing amino acid is the tyrosine complex, in which one CH3Hg+ group is bonded to the NH2 end of the molecule (17).…”

Section: Introductionmentioning

confidence: 99%

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Complexation of glycylglycine by the methylmercury cation: a vibrational spectroscopy and X-ray diffraction study

Alex¹,

Savoie²,

Corbeil³

et al. 1986

Can. J. Chem.

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Section: Description Of the Structuressupporting

confidence: 65%

Section: Description Of the Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Complexation of glycylglycine by the methylmercury cation: a vibrational spectroscopy and X-ray diffraction study

Alex¹,

Savoie²,

Corbeil³

et al. 1986

Can. J. Chem.

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“…Most such metal-mediated cleavages in simple tertiary, bis-or polyphosphines take place (27) only under forcing conditions although there have been some recent reports of phosphidobridged complexes being formed under comparatively mild conditions from dppm, and related P-C-P complexes, of di-iron carbonyl (2829) and platinum chloride (30,37). What may also be significant is that we have so far been unable to find a Ph 2 PCH 2 -fragment in any product of the Co 11 and Ni^dppm/NaBH^CO reactions outiined above.…”

Section: Co 1 and Ni 1 Diphenylphosphido-bridged Complexesmentioning

confidence: 98%

Bis(diphenylphosphino)methane in Organometallic Synthesis

Hughes

1992

ACS Symposium Series

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A new, versatile, one-step route to bis(diphenylphosphino)methane (dppm) metal carbonyl complexes involving NaBH 4 reduction of a metal salt/dppm mixture under CO has been developed. The reaction outcome is determined by careful control of the conditions. With Co II , the complexes [Co(η 2 -dppm) 2 (CO)][Co(CO) 4 ], Co 2 (μ-dppm) 2 (CO) 4 , Co 2 (µ-dppm) 2 (µ-CO) 2 (CO) 2 , and Co 2 (μ-dppm) 2 (μ-Η)(μ-ΡΡh 2 )(CO) 2 can all be obtained as the major product. CoBH 2 (η 1 -dppm)(η 2 -dppm)(CO) 2 , the first stable metallaborane, is a minor product and other η 1 -and η 2 -dppm-Co-CO complexes can also be prepared. With Ni II , Ni(η 1 -dppm) 2 (CO) 2 , Νi 2 (μ-ddpm) 2 (μ-CO)(CO) 2 and [Ni 2 (μ-dppm) 2 (μ-PPh 2 )(CO) 2 ]X can all be prepared as major products. The heterobinuclear CoRh(µ-dppm) 2 (CO) 3 is similarly prepared from Co II /Rh III /dppm/BH 4 -/CO reactions and related (e.g., Co-Mn, Ni-Cu) complexes can be prepared by twostep processes. Pd IV gives at least five Pd-dppm-CO complexes.Bis(diphenylphosphino)methane (dppm) is a versatile ligand in coordination chemistry since it can act as a mono-coordinating, bridging or chelating species with metals. The small bite angle of dppm does not favor chelation and the majority of such complexes reported to date contain mono-coordinating or, more usually, bridging dppm. Indeed, the importance of bridging dppm in the stabilization of homo-and heterobinuclear (and cluster) complexes has received increasing recognition recently (1-4). Binuclear and small cluster complexes are of considerable interest because many reactions which take place with these systems, particularly those which contain metal-metal bonds and/or coordinatively unsaturated metal centers, are analogous (4) to those which take place on metal surfaces in the context of heterogeneous catalysis. Also in the context of catalysis, many metal phosphine, metal carbonyl, and metal carbonyl phosphine complexes are active catalysts for a variety of homogeneous processes (5). Metal carbonyl phosphine complexes are most often prepared by reaction of a metal carbonyl and a phosphine or, less commonly, by treatment of a metal phosphine complex with 0097-6156/ 92/ 0486-0173S06. 00/ 0

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“…Calc for C 18 5HCl (5.0 g, 11 mmol) was dissolved in 100 mL water and the pH adjusted to ~6 with 2.5 M NaOH.…”

Section: -(2'-pyridinylmethanamino)-mentioning

confidence: 99%

Mono- and Dinuclear Copper(II) Complexes of Pendant-Arm Macrocyclic Polyamines: Synthesis, Characterization and Investigation as Hydrolytic Cleavage Agents for DNA

McCann¹,

Iuliis²,

Lawrance³

et al. 2006

BioInorganic Reaction Mechanisms

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Cleavage of the P–C bond in [PtCl₂(Ph₂PCH₂PPh₂-P,P′)] under mild conditions

Cited by 40 publications

References 2 publications

Complexation of glycylglycine by the methylmercury cation: a vibrational spectroscopy and X-ray diffraction study

Complexation of glycylglycine by the methylmercury cation: a vibrational spectroscopy and X-ray diffraction study

Bis(diphenylphosphino)methane in Organometallic Synthesis

Mono- and Dinuclear Copper(II) Complexes of Pendant-Arm Macrocyclic Polyamines: Synthesis, Characterization and Investigation as Hydrolytic Cleavage Agents for DNA

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