trans-Dichlorooxo(2-propoxido)bis(triphenylphosphine)rhenium(V)

Abram, Sonja; Abram, U.; Schulz-Lang, Ernesto; Strähle, Joachim

doi:10.1107/s0108270194013314

Cited by 23 publications

(15 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rhenium-oxo distance of 1.680(6) Å is in the expected range for monooxo rhenium complexes. The Re-OCH 3 distance of 1.865(6) Å is expectedly longer, but reflects some double bond character as has been observed previously for a number of rhenium(V) complexes with oxo and alkoxo ligands in trans position [31,32]. Markedly longer Re-OR bonds have been found when the alkoxo units are cis to the oxo unit [33].…”

Section: Resultssupporting

confidence: 58%

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Braband

Blatt

Abram

2006

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Reactions of the oxorhenium(V) complexes [ReOX 3 (PPh 3 ) 2 ] (X ϭ Cl, Br) with the N-heterocyclic carbene (NHC) 1,3,4-triphenyl-1,2,4-triazol-5-ylidene (L Ph ) under mild conditions and in the presence of MeOH or water give [ReOX 2 (Y)(PPh 3 )(L Ph )] complexes (X ϭ Cl, Br; Y ϭ OMe, OH). Attempted reactions of the carbene precursor 5-methoxy-1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazole (1) with [ReOCl 3 (PPh 3 ) 2 ] or [NBu 4 ][ReOCl 4 ] in boiling xylene resulted in protonation of the intermediately formed carbene and decomposition products such 2251 as [HL Ph ][ReOCl 4 (OPPh 3 )], [HL Ph ][ReOCl 4 (OH 2 )] or [HL Ph ][ReO 4 ] were isolated. The neutral [ReOX 2 (Y)(PPh 3 )(HL Ph )] complexes are purple, airstable solids. The bulky NHC ligands coordinate monodentate and in cis-position to PPh 3 . The relatively long ReϪC bond lengths of approximate 2.1 Å indicate metal-carbon single bonds.

show abstract

Section: Resultssupporting

confidence: 58%

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Braband

Blatt

Abram

2006

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…In the present case, however, the Re–O3 bond seems to be rather strengthened than weakened. The transfer of electron density from a Re=O double bond to Re–O bonds in trans position is not without precedent and has been observed for a number of (non‐chelating) alcoholates before 14,19. It goes normally along with relatively short Re–O bonds and elongated Re–O–C angles in such molecules.…”

Section: Resultsmentioning

confidence: 99%

Rules of Boron–Nitrogen Doping in Defect Graphene Sheets: A First‐Principles Investigation of Band‐Gap Tuning and Oxygen Reduction Reaction Catalysis Capabilities

2014

View full text Add to dashboard Cite

Introduction of defects and nitrogen doping are two of the most pursued methods to tailor the properties of graphene for better suitability to applications such as catalysis and energy conversion. Doping nitrogen atoms at defect sites of graphene and codoping them along with boron atoms can further increase the efficiency of such systems due to better stability of nitrogen at defect sites and stabilization provided by B-N bonding. Systematic exploration of the possible doping/codoping configurations reflecting defect regions of graphene presents a prevalent doping site for nitrogen-rich BN clusters and they are also highly suitable for modulating (0.2-0.9 eV) the band gap of defect graphene. Such codoped systems perform significantly better than the platinum surface, undoped defect graphene, and the single nitrogen or boron atom doped defect graphene system for dioxygen adsorption. Significant stretching of the O-O bond indicates a lowering of the bond breakage barrier, which is advantageous for applications in the oxygen reduction reaction.

show abstract

“…Such values are somewhat smaller than expected for Re–O single bonds, but not unusual for oxido or arylimido complexes of rhenium(V), since similar features are found with about 50 per cent of the crystallographically studied compounds of these types . The effect is commonly explained by a partial transfer of electron density from the Re–O/N double bonds to the trans Re–O bond , …”

Section: Resultsmentioning

confidence: 99%

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh₃as a Facile Reductant

et al. 2019

View full text Add to dashboard Cite

The salicylidene Schiff bases of bis(2-aminophenyl)diselenide and -ditelluride react with [ReOCl 3 (PPh 3 ) 2 ] or the arylimidorhenium(V) compounds [Re(NPhR)Cl 3 (PPh 3 ) 2 ] (R = H, F, CF 3 ) with formation of rhenium(V) complexes with tridentate {O,N,Se/Te} chalcogenolato ligands. The ligands adopt a facial coordination mode with the oxygen donors trans to the multiply bonded O 2or NPhR 2ligands. The reduction of the dichalcogenides and the formation of the chalcogenolato ligands oc-[a]

show abstract

trans-Dichlorooxo(2-propoxido)bis(triphenylphosphine)rhenium(V)

Cited by 23 publications

References 1 publication

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Rules of Boron–Nitrogen Doping in Defect Graphene Sheets: A First‐Principles Investigation of Band‐Gap Tuning and Oxygen Reduction Reaction Catalysis Capabilities

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh₃as a Facile Reductant

Contact Info

Product

Resources

About

trans-Dichlorooxo(2-propoxido)bis(triphenylphosphine)rhenium(V)

Cited by 23 publications

References 1 publication

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Oxorhenium(V) Complexes with 1,3,4‐Triphenyl‐1,2,4‐triazol‐5‐ylidene

Rules of Boron–Nitrogen Doping in Defect Graphene Sheets: A First‐Principles Investigation of Band‐Gap Tuning and Oxygen Reduction Reaction Catalysis Capabilities

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh3as a Facile Reductant

Contact Info

Product

Resources

About

Rhenium(V) Complexes with Selenolato‐ and Tellurolato‐Substituted Schiff Bases – Released PPh₃as a Facile Reductant