130645-07-7

Upstream product

• 1121-78-4 5-Hydroxy-2-methylpyridine 
• 98-88-4 benzoyl chloride 
• 34237-07-5 3,3'-Dihydroxy-6,6'-dimethyl-2,2'-bipyridine 

Downstream Products

• 144342-85-8 Tetra(tert-butyl) 2,2',2,2'-<<3,3'-bis(benzoyloxy)-2,2'-bipyridine-6,6'-diyl>bis(methylenenitrilo)>tetrakis(acetate) 
• 144343-01-1 2,2',2,2'-<<3,3'-Bis(benzoyloxy)-2,2'-bipyridine-6,6'-diyl>bis(methylenenitrilo)>tetrakis(acetic acid) 
• 144342-55-2 6,6'-Bis(bromomethyl)-2,2'-bipyridine-3,3'-diyl dibenzoate 

Relevant academic research and scientific papers

Spectrofluorometric method and compounds that are of value for the method

A chelate formed between Eu3+, Tb3+, Dy3+ and Sm3+ and a compound having the formula STR1 where A1-6 are single carbon or nitrogen atoms; n=1 or 2; R1-6 is nothing when A is a nitrogen, and hydrogen or an organic group when A is a carbon; Z and Z' are selected among --N(CH2 CH2 COO-)2, --N(CH2 COO-)2, --N(CH2 OPO32-)2 and --N(CH2 PO32-)2 ;--species that --X--Y is a substituent replacing a hydrogen anywhere in the parent compound; and --X--Y represents an organic group containing no chelating heteroatom closer than four atoms from a chelating heteroatom in the parent compound and X is a stable bridge containing certain groups and Y is selected from (a) specified relative groups allowing coupling to other compounds and (b) residues of compounds participating in biospecific affinity reactions.

New 2,2'-Bipyridine Derivatives and Their Luminescence Properties with Europium(III) and Terbium(III) Ions

Twenty differently substituted 2,2',2",2"'-III and TbIII ions.The relative luminescence yields, excitation maxima, and emission decay constants were determined for the corresponding EuIII and TbIII chelates.The substituents at the bipyridine moiety had a significant effect on the luminescence properties: the best relative luminescence yields R were obtained for ligands with electron-donating substituents (e.g.Me, Ph), electron-withdrawing substituents (e.g.NO2, COOH) had a reverse effect.However, no clear correlation between the relative luminescence yields and the substituent parameters was found.