Isothiocyanato Complexes of Rhenium. V. trans-Bis(isothiocyanato)(methoxy)(phenylimido)bis(triphenylphosphine)rhenium(V)

Hübener, Rainer; Abram, U.; Strähle, Joachim

doi:10.1107/s0108270195000564

Cited by 8 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1-3,8,30 The geometry about the amide N atom is consistent with a triplybonded N-Ph group. The Re-N-C(Ph) unit is essentially linear [178.4(3)Њ], whereas the Re-N and N-C distances of 1.745(4) and 1.378(6) Å, respectively, correspond with the mean values reported for phenylimido-alkoxo compounds [44][45][46][47][48][49][50]. The phenyl ring stands upright, roughly perpendicular to the equatorial plane.…”

mentioning

confidence: 76%

See 1 more Smart Citation

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Couillens¹,

Gressier²,

Turpin³

et al. 2002

J. Chem. Soc., Dalton Trans.

View full text Add to dashboard Cite

Reacting 1-phenyl-2-(diphenylphosphino)ethanone (P 1 ∼OH), 1-tert-butyl-2-(diphenylphosphino)ethanone (P 2 ∼OH) and 1-phenyl-2-(diphenylphosphino)propanone (P 3 ∼OH) with ReOCl 3 (PPh 3 ) 2 and Re(NPh)Cl 3 (PPh 3 ) 2 in toluene and ethanol in the presence of NEt 3 yields complexes in which these ligands bind as monoanionic enolato chelating agents. Bromo and iodo analogues are prepared similarly. The reactions are solvent dependent. The disubstituted ReOCl(P∼O) 2 compounds obtained in toluene adopt the 'twisted' cis-(P,P) octahedral structure. With Re(NPh)Cl 3 -(PPh 3 ) 2 , P 1 ∼OH and P 2 ∼OH give the corresponding Re(NPh)Cl(P∼O) 2 compounds and the trans-(P,P)-trans-(Cl,Cl) isomer of monosubstituted Re(NPh)Cl 2 (PPh 3 )(P∼O) as the major products, together with small amounts of 'twisted' trans-(P,P) Re(NPh)Cl(P∼O) 2 . The monosubstituted complex is the only species isolated with P 3 ∼OH. The major structural difference between the two systems is the small stability gap between the cis-and the trans-(P,P) isomers of the imido complexes. In ethanol, unexpected cis-ethoxo-oxo complexes ReO(OEt)(P∼O) 2 are isolated, resulting from stereoselective substitution of the halide in the 'twisted' cis-(P,P) octahedral complexes. The reactions with Re(NPh)Cl 3 (PPh 3 ) 2 are less selective and give rise to mixtures of complexes. The trans-ethoxo-phenylimido compound Re(NPh)(OEt)(P 1 ∼O) 2 is obtained in good yield. A crystallographic study reveals an unexpected 'equatorial' trans-(P,P) structure with the ethoxo ligand trans to the Re᎐ ᎐ NPh bond. 1 H NMR indicates that the ethoxo ligand acts as an electron reservoir in these complexes, since its protons are strongly deshielded in the cis-oxo-ethoxo species and strongly shielded in the trans-phenylimido-ethoxo complex.

show abstract

mentioning

confidence: 76%

“…The Re-O3-C5 bond angle of 135.0(3)Њ in the ethoxo group lies in the normal range. [44][45][46][47][48][49][50][51][52][53][54] Interestingly, the O3-C5 bond is nearly coplanar with the Re-O1 bond [C5-O3-Re-O1 torsion angle = 7.3(5)Њ] (Fig. 5).…”

Section: Crystal Structure Of Re(nph)(oet)(p 1 ∼O) 2 (16)mentioning

confidence: 99%

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Couillens¹,

Gressier²,

Turpin³

et al. 2002

J. Chem. Soc., Dalton Trans.

View full text Add to dashboard Cite

show abstract

“…This is mainly due to the poor solubility of the most common starting material [Re(NPh)Cl 3 (PPh 3 ) 2 ] in most organic solvents. Thus, ligand exchange reactions are restricted to halides, pseudohalides, diimines, or some other robust chelating ligands . Thermally unstable ligands are not suitable for such procedures.…”

Section: Introductionmentioning

confidence: 99%

Reactions of [ReOCl₃(PPh₃)₂] with 4‐Fluoroaniline

Scholtysik

Jungfer

Hagenbach

et al. 2018

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

The reaction of [ReOCl3(PPh3)2] with an equivalent amount of 4‐fluoroaniline gives the rhenium(V) complex [Re(NPhF)(NH2PhF)Cl3(PPh3)] as the major product, whereas from a reaction with an excess of the aniline the dinuclear compound [{Re(NPhF)(NH2PhF)Cl2(PPh3)}2O] was isolated. The addition of an excess of PPh3 to the [ReOCl3(PPh3)2]/4‐fluoroaniline reaction mixture gives [Re(NPhF)Cl3(PPh3)2] in good yields. The products were studied by NMR spectroscopy and X‐ray diffraction.

show abstract

Isothiocyanato complexes of rhenium VI. Synthesis, characterization and structures of cis-and trans-[ReCl2(NCS) (Me2PhP)3]

Hübener

Ortner

Strähle

et al. 1996

Inorganica Chimica Acta

View full text Add to dashboard Cite

Isothiocyanato Complexes of Rhenium. V. trans-Bis(isothiocyanato)(methoxy)(phenylimido)bis(triphenylphosphine)rhenium(V)

Cited by 8 publications

References 0 publications

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Reactions of [ReOCl₃(PPh₃)₂] with 4‐Fluoroaniline

Isothiocyanato complexes of rhenium VI. Synthesis, characterization and structures of cis-and trans-[ReCl2(NCS) (Me2PhP)3]

Contact Info

Product

Resources

About

Isothiocyanato Complexes of Rhenium. V. trans-Bis(isothiocyanato)(methoxy)(phenylimido)bis(triphenylphosphine)rhenium(V)

Cited by 8 publications

References 0 publications

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Synthesis and characterisation of oxo- and phenylimido-rhenium(v) complexes containing bidentate phosphinoenolato ligands

Reactions of [ReOCl3(PPh3)2] with 4‐Fluoroaniline

Isothiocyanato complexes of rhenium VI. Synthesis, characterization and structures of cis-and trans-[ReCl2(NCS) (Me2PhP)3]

Contact Info

Product

Resources

About

Reactions of [ReOCl₃(PPh₃)₂] with 4‐Fluoroaniline