234448-73-8

Basic information

• Product Name: Re(CO)3(bipyridyl)(CCPh)
• Synonyms: Re(CO)3(bipyridyl)(CCPh)
• CAS NO: 234448-73-8
• Molecular Weight: 527.553
• Mol File: 234448-73-8.mol

Chemical Properties

• CAS DataBase Reference: Re(CO)3(bipyridyl)(CCPh)(CAS DataBase Reference)
• NIST Chemistry Reference: Re(CO)3(bipyridyl)(CCPh)(234448-73-8)
• EPA Substance Registry System: Re(CO)3(bipyridyl)(CCPh)(234448-73-8)

Safety Data

• Hazardous Substances Data: 234448-73-8(Hazardous Substances Data)

Upstream product

• 56498-59-0 Re(CO)3(2,2'-bipyridine)Br 
• 536-74-3 phenylacetylene 
• 468083-38-7 [Re(tetrahydrofuran)(CO)3(2,2'-bipyridyl)]B(3,5-bis(trifluoromethyl)phenyl)4 
• 55658-96-3 tricarbonyl(2,2'-bipyridine)chlororhenium(I) 
• 4440-01-1 lithium phenylacetylide 

Downstream Products

• 234448-72-7 [Re(CO)3(C₅NH₄C₅NH₄)(CCC₆H₅)]2Ag⁽¹⁺⁾*PF₆^(1-)=[Re(CO)3C₁₀N₂H₈(CCC₆H₅)]2AgPF₆ 

Relevant articles and documents

A thallium mediated route to σ-arylalkynyl complexes of bipyridyltricarbonylrhenium(I)

A simple, one-pot preparation of rhenium(I) σ-arylalkynyl complexes is reported using thallium(I) hexafluorophosphate as a halogen abstraction agent. This new route to rhenium σ-alkynyls enjoys higher yields compared to analogous preparations using silver salts by eliminating potential electrochemical degradation pathways.

Synthesis, electrochemistry and structural characterization of luminescent rhenium(I) monoynyl complexes and their homo- and hetero-metallic binuclear complexes

A series of luminescent rhenium(I) monoynyl complexes, [Re(N-N)(CO)3(C≡C-R)] (N-N = bpy, tBu2bpy; R = C6H5, C6H4-Cl-4, C6H4-OCH3-4, C6H4-C8H17-4, C6H4-C6H5, C8H17, C4H3S, C4H2S-C4H3S, C5H4N), together with their homo- and heterometallic binuclear complexes, {Re(N-N)(CO)3(C≡C-C5H4N)[M]} (N-N = bpy, tBu2bpy; [M] = [Re{(CF3)2-bpy}(CO)3]ClO4, [Re(NO2-phen)(CO)3]ClO4, W(CO)5) have been synthesized and their electrochemical and photoluminescence behaviors determined. The structural characterization and electronic structures of selected complexes have also been studied. The luminescence origin of the rhenium(I) alkynyl complexes has been assigned as derived states of a [dπ(Re) → π*(N-N)] metal-to-ligand charge transfer (MLCT) origin mixed with a [π(C≡CR)→π*(N-N)] ligand-to-ligand charge transfer (LLCT) character. The assignments are further supported by extended Hu?ckel molecular orbital (EHMO) calculations, which show that the LUMO mainly consists of π*(N-N) character while the HOMO is dominated by the antibonding character of the Re-C≡CR moiety resulted from the overlap of the dπ(Re) and π(C≡CR) orbitals.

New synthetic routes to cationic rhenium tricarbonyl bipyridine complexes with labile ligands

Triflate abstraction from the complex [Re(OTf)(CO)3(bipy)] (1) using the salt NaBAr′4 (Ar′ = 3,5-bis(trifluoromethyl)phenyl) in dichloromethane solution in the presence of L = PPh3, NCMe, NCPh, imines, ketones, Et2O, THF, MeOH, and Mel affords cationic complexes [Re(L)(CO)3(bipy)]+ as their BAr′4-salts. The new complexes have been characterized spectroscopically and, for [Re(η1-O=C(Me)R)(CO)3(bipy)]BAr′4 (R = CH3, 6a; R = Ph, 6b), and [Re(THF)(CO)3(bipy)] BAr′4 (9), also by single-crystal X-ray diffraction. Compared with conventional methodologies, the route reported here allows the coordination of a broader range of weakly coordinating ligands and requires considerably milder conditions. On the other hand, the reactions of lithium acetylides with [Re(THF)(CO)3(bipy)]BAr′4 (9) can be used for the high-yield syntheses of rhenium alkynyls [Re(C≡CR)(CO)3(bipy)] (R = Ph, 12; R = SiMe3, 13). Complex 9 was found to catalyze the aziridination of benzylideneaniline with ethyl diazoacetate.