96897-04-0

Basic information

• Product Name: 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine)
• Synonyms: 1,2-Bis(4'-methyl-2,2'-bipyridin-4-yl)ethane;4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine);4,4''-Ethylenebis[4'-methyl-2,2'-bipyridine];4-Methyl-4'-[2-(4'-methyl-2,2'-bipyridine-4-yl)ethyl]-2,2'-bipyridine
• CAS NO: 96897-04-0
• Molecular Formula: C24H24N4
• Molecular Weight: 368.47416
• Mol File: 96897-04-0.mol
• Article Data: 5

Chemical Properties

• Melting Point: 190.0 to 194.0 °C
• Appearance: /
• CAS DataBase Reference: 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine)(CAS DataBase Reference)
• NIST Chemistry Reference: 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine)(96897-04-0)
• EPA Substance Registry System: 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine)(96897-04-0)

Safety Data

• Hazardous Substances Data: 96897-04-0(Hazardous Substances Data)

Usage

General Description

4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine) is a chemical compound with the molecular formula C22H20N4. It is a bidentate ligand and contains two 4-methyl-2,2'-bipyridine units connected by an ethylene linkage. 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine) is commonly used in coordination chemistry as a chelating ligand to form coordination complexes with metal ions. These complexes have a wide range of applications including in catalysis, luminescent materials, and as sensitizers in dye-sensitized solar cells. The ability of 4',4'''-Ethylenebis(4-methyl-2,2'-bipyridine) to form stable complexes with metal ions makes it a valuable tool in the field of chemical research and industrial applications.

Upstream product

• 81998-04-1 4-(hydroxymethyl)-4'-methyl-2,2'-bipyridine 
• 104704-09-8 4'-methyl-2,2'-bipyridine-4-carboxylaldehyde 
• 1134-35-6 4,4'-dimethyl-2,2'-bipyridines 
• 106-93-4 ethylene dibromide 
• 88351-40-0 CH₃(C₁₀H₆N₂)CH₂Li 
• 81998-05-2 4-bromomethyl-4'-methyl-2,2'-bipyridine 

Relevant articles and documents

Bridging Efficiency within Multinuclear Homogeneous Catalysts in the Photocatalytic Reduction of Carbon Dioxide

A trinuclear complex consisting of one [Ru(dmb)3]2+ (dmb=4,4′-dimethyl-2,2′-bipyridine) (Ru) and two [Re(dmb)(CO)3Cl] (Re) building blocks, [Re(CO)3Cl(dmb-dmb)Ru(dmb)(dmb-dmb)Re(CO)3Cl](PF6)2 (Re-Ru-Re), is presented. Photophysical properties of Re-Ru-Re and the individual components with different or no covalent linkages are thoroughly investigated and compared. To elucidate the role of the single covalent bonds, photocatalytic reduction of CO2 is performed with the trinuclear complex and a series of model systems featuring systematic absence of linkages between the metal centers. Photoluminescence spectra and quantum yields reveal efficient energy transfer from the excited state of Re to Ru if these fragments are covalently linked. Moreover, intramolecular electron transfer from the one-electron reduced species of Ru to Re occurs if there is covalent bonding, leading to a higher photostability and thus the highest turnover number in photocatalytic CO2 reduction of 199 for the trinuclear complex Re-Ru-Re within the systems under investigation. Optimized experimental conditions reveal the highest turnover number (315) reported to date for ReI/RuII-based homogeneous catalysts in photocatalytic CO2 reduction.

Binuclear, ruthenium - manganese complexes as simple artificial models, for photosystem II in green plants

As part of a project aimed at developing models for photosystem II (PSII) in green plants, we have prepared a series of model compounds (7, 8, and 13). In these compounds, a photosensitizer, ruthenium(II) tris(bipyridyl) complex (to mimic the function of P680 in PSII), was covalently linked to a manganese(II) ion through different bridging ligands. The structures of the compounds were characterized by electron paramagnetic resonance measurements and electrospray ionization mass spectrometry. The interaction between the ruthenium and manganese moleties within the complex was probed by steady- state and time-resolved emission measurements. When the binuclear complexes are exposed to flash photolysis in the presence of an electron acceptor such as methylviologen (MV2+), it could be shown that after the initial electron transfer from the excited state of Ru(II) in compound 7, forming Ru(III) and MV+. , an intramolecular electron transfer from coordinated Mn(II) to the photogenerated Ru(III) occurred with a first-order rate constant of 1.8 x 105 s-1, regenerating Ru(II). This is believed to be the first supramolecular system where a manganese complex has been used as an electron donor to a photo-oxidized photosensitizer. Possible extensions to develop the manganese donor, and thus to approach the function of reaction center in PSII, are indicated.

Synthesis and Luminescence Properties of Di- and Tri-methylene Linked Tris(2,2'-bipyridine)ruthenium(II) Complex Dimers. Ground-Excited State Interaction

Di- and tri-methylene-linked Ru(bpy)3(2+) complexes 2 were synthesized.The luminescence properties of 2 were compared with those of its component monomer.In the excited 2 systems, the intermolecular interaction leading to the enhanced quenching or the formation of a new triplet excimer was not observed.