New anionic and dianionic polydentate systems featuring ancillary phosphinosulfides as ligands in coordination chemistry and catalysis

Doux, Marjolaine; Piechaczyk, Olivier; Cantat, Thibault; Mézailles, Nicolas; Floch, Pascal Le

doi:10.1016/j.crci.2006.10.009

Cited by 15 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The NiÀP bond lengths are 2.1844(8) and 2.1850(8) Å while the NiÀN distance was found to be 1.825(2) Å. The PÀNiÀP angle of 8 was found to be 141.49(3)°while the NÀNiÀP in the NNiP three membered ring was found to be 45.34 (8)°.…”

Section: ' Results and Discussionmentioning

confidence: 91%

“…The analogous reaction of 3 with NiCl 2 (dme) afforded [(tBu 2 PH)(NMe)(CH 2 ) 2 (NMe)(tBu 2 P)NiCl 3 ], (12), which upon treatment with B(C 6 F 5 ) 3 afforded the species (k 3 P,C, P-tBu 2 PN(Me)CHCH 2 N(Me)PtBu 2 )NiCl (13). Crystallographic studies of 4À6, 8,9,11, and 12 are reported. The implications of these results are considered.…”

Section: ' Experimental Sectionmentioning

confidence: 99%

“…Yellow crystals suitable for X-ray diffraction were grown from hexanes. 1 Synthesis of (j 3 P,N,P-tBu 2 PNH(CH 2 ) 2 NPtBu 2 )PdI (7) and (k 3 P,N,P-tBu 2 PNH(CH 2 ) 2 NPtBu 2 )NiCl (8). These compounds were prepared in a similar fashion, and thus only one preparation is detailed.…”

Section: ' Experimental Sectionmentioning

confidence: 99%

“…Additional details are provided in the Supporting Information. Crystallographic parameters for 4À6, 8,9,11, and 12 are given in Table 1.…”

Section: X-ray Data Collection and Reduction Crystals Were Coated Inmentioning

confidence: 99%

“…Chelating ligands have proven instrumental in the development of new catalysts; furthermore trans-chelating “pincer” ligands have garnered considerable attention over the years. − The most extensively investigated pincer complexes feature ligands based on a meta-substituted arene skeleton (PCP). Variations of the PCP-pincer framework have been shown to alter the electronic and steric properties of the corresponding metal complexes, resulting in unique reactivity. , …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Nickel(II) and Palladium(II) Bis-Aminophosphine Pincer Complexes

Gwynne

Stephan

2011

Organometallics

View full text Add to dashboard Cite

Chelating ligands have proven instrumental in the development of new catalysts; furthermore trans-chelating "pincer" ligands have garnered considerable attention over the years. 1À13 The most extensively investigated pincer complexes feature ligands based on a meta-substituted arene skeleton (PCP). Variations of the PCP-pincer framework have been shown to alter the electronic and steric properties of the corresponding metal complexes, resulting in unique reactivity. 14,15 Aminophosphine chelating ligands of the form (linker)-(NR 0 PR 2 ) 2 have also garnered attention, as such ligands are readily prepared from diamines and chlorophosphines. 5,16 While linked diaminophosphine ligands such as (CH 2 N(R 0 )PR 2 ) 2 (R 0 = H, alkyl; R = alkyl, aryl) have been reported by Wollins, 17 Gusev, 9 Vogt, 16 and others, 18À21 investigations of PCP aminophosphine-based pincer ligand complexes have received less attention. 10 We were drawn to these systems, as such ligands offer adjacent P and N donors, suggesting the possibility of unique binding modes and thus subsequent reactivity. In this regard, the only report in which the N atom of an aminophosphine has been shown to participate in binding to a metal was recently reported by Palacios et al. In this case a bis-aminophosphine ligand was shown to bind to Ru via both P atoms as well as one of the amino NH groups, affording the Ru cation [Cp*Ru(k 3 P,N,P-(iPr 2 PNH) 2 C 6 H 10 ] + . 21 In this paper, we describe the synthesis and characterization of Ni and Pd complexes of bis-aminophosphine chelating ligands. Interestingly, these ligands are shown to readily adopt two tridentate binding modes. Participation of the secondary N adjacent to P affords k 3 P,N,P ligands that incorporate three-membered NPM metallacycles. Alternatively, metalation of the alkyl chain in the ligand backbone affords k 3 P,C,P pincer complexes.

show abstract

Section: ' Results and Discussionmentioning

confidence: 91%

Section: ' Experimental Sectionmentioning

confidence: 99%

Section: ' Experimental Sectionmentioning

confidence: 99%

“…Additional details are provided in the Supporting Information. Crystallographic parameters for 4À6, 8,9,11, and 12 are given in Table 1.…”

Section: X-ray Data Collection and Reduction Crystals Were Coated Inmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nickel(II) and Palladium(II) Bis-Aminophosphine Pincer Complexes

Gwynne

Stephan

2011

Organometallics

View full text Add to dashboard Cite

show abstract

ChemInform Abstract: New Anionic and Dianionic Polydentate Systems Featuring Ancillary Phosphinosulfides as Ligands in Coordination Chemistry and Catalysis

Doux¹,

Piechaczyk²,

Cantat³

et al. 2008

ChemInform

View full text Add to dashboard Cite

show abstract

Synthesis and Structural Characterization of Thiophosphinoyl Late‐Transition‐Metal and Divalent Lanthanide Complexes Derived from 2‐Quinolyl‐Linked (Thiophosphorano)methane

2013

View full text Add to dashboard Cite

The synthesis and structural characterization of a series of late‐transition‐metal and divalent lanthanide complexes derived from 2‐quinolyl‐linked phosphoranosulfide CH2(iPr2P=S)(C9H6N‐2) are reported. Metathesis of dimeric lithium complex [(Li{Et2O}{CH(iPr2P–S)(C9H6N‐2)})2] (1) with CoCl2 (2 equiv.) afforded a heteroleptic cobalt(II) complex [(CoCl{CH(iPr2P=S)2(C9H6N‐2)})2] (2). Treatment of potassium complex [(K{CH(iPr2P–S)(C9H6N‐2)})n] (3) with MCl2 (M = Mn, Fe, Co; 1 equiv.) afforded homoleptic 2‐quinolyl‐linked (thiophosphorano)methanide metal(II) complexes, [M{CH(iPr2P–S)2(C9H6N‐2)}2] [M = Mn (4), Fe (5), Co (6)]. Metathesis reaction of 3 with [YbI2(thf)2] and [EuI2(thf)2] (1 equiv.) afforded dimeric homoleptic ytterbium(II) complex [(Yb{CH(iPr2P–S)(C9H6N‐2)}2)2] (7) and europium(II) complex [(Eu{CH(iPr2P–S)(C9H6N‐2)}2)2] (8), respectively. The structures of 2 and 4–8 have been determined by X‐ray crystallography. Furthermore, the magnetic susceptibility of compounds 4–6 have been determined by using Evan's method.

show abstract

New anionic and dianionic polydentate systems featuring ancillary phosphinosulfides as ligands in coordination chemistry and catalysis

Cited by 15 publications

References 28 publications

Nickel(II) and Palladium(II) Bis-Aminophosphine Pincer Complexes

Nickel(II) and Palladium(II) Bis-Aminophosphine Pincer Complexes

ChemInform Abstract: New Anionic and Dianionic Polydentate Systems Featuring Ancillary Phosphinosulfides as Ligands in Coordination Chemistry and Catalysis

Synthesis and Structural Characterization of Thiophosphinoyl Late‐Transition‐Metal and Divalent Lanthanide Complexes Derived from 2‐Quinolyl‐Linked (Thiophosphorano)methane

Contact Info

Product

Resources

About