Four-membered chelate rings in complexes with 2,2-bis(diphenylphosphino)propane. Crystal and molecular structures of trans-[RuCl2{Me2C(PPh2)2}2], [RuCl{Me2C(PPh2)2}(η-C5H5)] and [(η-C5H5)Ru(µ-CO)2-{µ-Me2C(PPh2)2}RhCl2](Rh–Ru)

Barkley, James V.; C, Grimshaw J; Higgins, Simon J.; Hoare, Paul B.; McCart, Mark K.; Smith, Anthony K.

doi:10.1039/dt9950002901

Cited by 17 publications

(13 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Treatment of solutions of 1a or 1b (prepared in situ from trans-[RuCl 2 (dppm) ] ϩ . 10 Sullivan and Meyer reported that solutions of cis-[RuCl 2 -(dppm) 2 ] were photochemically converted to trans-[RuCl 2 (dppm) 2 ] over several days. 11 When CDCl 3 solutions of 2a, b and 3a, b were left in ambient light for up to one week, partial conversion to the trans isomer was observed ( 31 P{ 1 H} NMR monitoring), but these reactions did not go to completion.…”

Section: Metathesis Of Triflate Complexes With Other Anionic Ligandsmentioning

confidence: 99%

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

et al. 2003

Self Cite

View full text Add to dashboard Cite

Section: Metathesis Of Triflate Complexes With Other Anionic Ligandsmentioning

confidence: 99%

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

et al. 2003

Self Cite

View full text Add to dashboard Cite

“…Recently, we have shown that the ligand 2,2-bis(diphenylphosphino)propane (2,2-dppp) is very effective at chelating Rh(I), reacting with [Rh 2 Cl 2 (CO) 4 ] to give exclusively [RhCl(CO)(2,2-dppp- P,P ‘)], in marked contrast with both dppm and 1,1-dppe …”

mentioning

confidence: 99%

Unusually Stable Four-Membered Chelate Rings in Nickel(II), Palladium(II), and Platinum(II) Complexes with the Ligand 2,2-Bis(diphenylphosphino)propane (2,2-dppp). Crystal and Molecular Structure of [PdI₂(2,2-dppp)]·0.8CH₂Cl₂

et al. 1998

Self Cite

View full text Add to dashboard Cite

The ligand Ph2PC(CH3)2PPh2 (2,2-dppp) reacts with Ni(II) salts to give robust square-planar chelate complexes [NiX2(2,2-dppp-P,P‘)] (X = Cl, 1; X = Br, 2) and the salt [Ni(2,2-dppp)2](ClO4)2 (3). The Pd(II) analogues [PdCl2(2,2-dppp)] (4), [PdI2(2,2-dppp)] (5), and [Pd(2,2-dppp)2](BF4)2 (6) have also been made. The crystal structure of 5 (obtained as 5·0.8CH2Cl2) has been determined by X-ray diffraction. The geminal C(CH3)2 group, when compared with related Ph2PCH2PPh2 (dppm) complexes, causes a small compression of the P−C−P chelate ring angle (to 91.3(3)° for 5). With [PtCl2(PhCN)2], 2,2-dppp affords [PtCl2(2,2-dppp)] (7), which undergoes metathesis with NaI to give [PtI2(2,2-dppp)] (8), and [Pt(2,2-dppp)2]Cl2 (9) was obtained by reaction of [PtCl2(PhCN)2] with 2 equiv of 2,2-dppp. Reactions were then attempted with 7 and 9, which are known to result in ring-opening reactions with the corresponding complexes of dppm, but in all cases, only 2,2-dppp chelate complexes could be isolated. Thus, treatment of 7 or 9 with excess MeLi gave exclusively [PtMe2(2,2-dppp)] (10) rather than cis,cis-[Pt2Me4(2,2-dppp)2]. Attempts to ring-open 10 with excess 2,2-dppp to give cis-[PtMe2(2,2-dppp−P)2] were unsuccessful. Treatment of 10 with 1 equiv of HCl or, better, treatment of [PtCl(Me)(1,5-cyclooctadiene)] with 2,2-dppp gave only mononuclear [PtCl(Me)(2,2-dppp)] (11) and no dimer of the type [MePt(μ-2,2-dppp)2(μ-Cl)PtMe]Cl. Treatment of 7 with 2 equiv of NaCN in EtOH gave the chelate complex [Pt(CN)2(2,2-dppp)] (12) rather than trans,trans-[Pt2(CN)4(μ-2,2-dppp)2], and treatment of 7 with LiC⋮CPh in thf or (better) H2NNH2·H2O/HC⋮CPh in EtOH gave [Pt(C⋮CPh)2(2,2-dppp)] (13), rather than trans,trans-[Pt2(C⋮CPh)4(μ-2,2-dppp)2]. Reaction of 7 with LiC⋮CBun in thf likewise gave [Pt(C⋮CBun)2(2,2-dppp)] (14) in low yield. The complexes were characterized by microanalyses (C, H, N and, in some cases, halide), infrared spectroscopy, 31P{1H} and 1H NMR spectroscopy, and fast atom bombardment mass spectrometry.

show abstract

“…These were isolated and washed with petrol before drying under vacuum. 1 (20). To 17 (0.151 g, 0.244 mmol) in thf (50 ml) was added n-BuLi (0.2 ml, 0.32 mmol) turning the solution dark yellow.…”

Section: Methodsmentioning

confidence: 99%

Backbone modified small bite-angle diphosphines: Synthesis and molecular structures of [M(CO)4{X2PC(R1R2)PX2}] (M=Mo, W; X=Ph, Cy; R1=H, Me, Et, Pr, allyl, R2=Me, allyl)

Hogarth¹,

Kilmartin²

2007

Journal of Organometallic Chemistry

View full text Add to dashboard Cite

Four-membered chelate rings in complexes with 2,2-bis(diphenylphosphino)propane. Crystal and molecular structures of trans-[RuCl₂{Me₂C(PPh₂)₂}₂], [RuCl{Me₂C(PPh₂)₂}(η-C₅H₅)] and [(η-C₅H₅)Ru(µ-CO)₂-{µ-Me₂C(PPh₂)₂}RhCl₂](Rh–Ru)

Cited by 17 publications

References 45 publications

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

Unusually Stable Four-Membered Chelate Rings in Nickel(II), Palladium(II), and Platinum(II) Complexes with the Ligand 2,2-Bis(diphenylphosphino)propane (2,2-dppp). Crystal and Molecular Structure of [PdI₂(2,2-dppp)]·0.8CH₂Cl₂

Backbone modified small bite-angle diphosphines: Synthesis and molecular structures of [M(CO)4{X2PC(R1R2)PX2}] (M=Mo, W; X=Ph, Cy; R1=H, Me, Et, Pr, allyl, R2=Me, allyl)

Contact Info

Product

Resources

About

Four-membered chelate rings in complexes with 2,2-bis(diphenylphosphino)propane. Crystal and molecular structures of trans-[RuCl2{Me2C(PPh2)2}2], [RuCl{Me2C(PPh2)2}(η-C5H5)] and [(η-C5H5)Ru(µ-CO)2-{µ-Me2C(PPh2)2}RhCl2](Rh–Ru)

Cited by 17 publications

References 45 publications

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

Syntheses, characterisation and some ligand substitution chemistry of Ru(ii)–diphosphine triflate complexes

Unusually Stable Four-Membered Chelate Rings in Nickel(II), Palladium(II), and Platinum(II) Complexes with the Ligand 2,2-Bis(diphenylphosphino)propane (2,2-dppp). Crystal and Molecular Structure of [PdI2(2,2-dppp)]·0.8CH2Cl2

Backbone modified small bite-angle diphosphines: Synthesis and molecular structures of [M(CO)4{X2PC(R1R2)PX2}] (M=Mo, W; X=Ph, Cy; R1=H, Me, Et, Pr, allyl, R2=Me, allyl)

Contact Info

Product

Resources

About

Four-membered chelate rings in complexes with 2,2-bis(diphenylphosphino)propane. Crystal and molecular structures of trans-[RuCl₂{Me₂C(PPh₂)₂}₂], [RuCl{Me₂C(PPh₂)₂}(η-C₅H₅)] and [(η-C₅H₅)Ru(µ-CO)₂-{µ-Me₂C(PPh₂)₂}RhCl₂](Rh–Ru)

Unusually Stable Four-Membered Chelate Rings in Nickel(II), Palladium(II), and Platinum(II) Complexes with the Ligand 2,2-Bis(diphenylphosphino)propane (2,2-dppp). Crystal and Molecular Structure of [PdI₂(2,2-dppp)]·0.8CH₂Cl₂