104704-12-3

Basic information

• Product Name: bis<4'-methyl<2,2'-bipyridyl>-4-yl>propane
• CAS NO: 104704-12-3
• Molecular Weight: 380.492
• Mol File: 104704-12-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis<4'-methyl<2,2'-bipyridyl>-4-yl>propane(CAS DataBase Reference)
• NIST Chemistry Reference: bis<4'-methyl<2,2'-bipyridyl>-4-yl>propane(104704-12-3)
• EPA Substance Registry System: bis<4'-methyl<2,2'-bipyridyl>-4-yl>propane(104704-12-3)

Safety Data

• Hazardous Substances Data: 104704-12-3(Hazardous Substances Data)

Upstream product

• 1134-35-6 4,4'-dimethyl-2,2'-bipyridines 
• 104704-10-1 4-(2-bromoethyl)-4'-methyl-2,2'-bipyridine 

Relevant articles and documents

Intramolecular Energy Transfer in Covalently Linked Polypyridine Ruthenium(II)/Osmium(II) Binuclear Complexes. Ru(II)(bpy)2Mebpy(CH2)n-MebpyOs(II)(bpy)2 (n=2, 3, 5, and 7)

A novel series of polymethylene-linked heterobinuclear complexes of polypyridine ruthenium(II)/osmium(II) complex Ru(II)(bpy)2Mebpy-(CH2)n-MebpyOs(II)(bpy)2(bpy=2,2'-bipyridine and N=2, 3, 5, and 7), 1, was prepared.The photophysical behavior was examined in various solvents.The emission spectra of 1 (excitation wavelength: 455 nm) showed a nearly complete quenching of Ru(II) -> ?*(bpy) metal-to-ligand charge transfer (MLCT) emission and the enhancement of Os(II) -> ?*(bpy) MLCT emission.The luminescence lifetime measurements by a time-correlated single photon-counting method provided evidence that intramolecular energy transfer is a significant pathway for the observed emission quenching.The rate constants of the intramolecular energy transfer in ethanol are 5.3 * 108, 3.3 * 108, 1.3 * 108, and 1.0 * 108 s-1 for 1 (n=2, 3, 5, and 7), respectively.They were found to be proportional to the inverse sixth power on the center-to-center distance of the two complexes.The mechanisms is discussed in terms of the Foerster (a dipole-dipole interaction) mechanism.