188548-57-4

Basic information

• Product Name: 6,6'-Di-2-thienyl-3,3'-bipyridine
• Synonyms: 6,6'-Di-2-thienyl-3,3'-bipyridine;6,6'-Bis(2-thienyl)-3,3'-bipyridine
• CAS NO: 188548-57-4
• Molecular Formula: C18H12N2S2
• Molecular Weight: 320.43128
• Mol File: 188548-57-4.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• Density: 1.278
• CAS DataBase Reference: 6,6'-Di-2-thienyl-3,3'-bipyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 6,6'-Di-2-thienyl-3,3'-bipyridine(188548-57-4)
• EPA Substance Registry System: 6,6'-Di-2-thienyl-3,3'-bipyridine(188548-57-4)

Safety Data

• Hazardous Substances Data: 188548-57-4(Hazardous Substances Data)

Upstream product

• 91891-74-6 5-bromo-2-(thiophen-2-yl)pyridine 

Relevant articles and documents

Synthesis and basic optical properties of new π-conjugated thiophene-pyridine co-oligomers

Two series of π-conjugated thiophene-pyridine co-oligomers, Py-Th-(Th)m-Th-Py (Py = pyridine unit; Th = thiophene unit; 4a: m = 0; 5a: m = 1; 6a: m = 2) and Th-Py-(Th)m-Py-Th (4b: m = 0; 5b: m = 1; 6b: m = 2), have been prepared by palladium- or nickel-promoted C-C coupling reaction in high yields. The π-π* absorption peak of Py-Th-(Th)m-Th-Py (390-440 nm) is observed at a longer wavelength than that of Th-Py-(Th)m-Py-Th (345-410 nm) with the same m number. These UV-vis data are considered to reflect a charge transfer (CT) interaction between the thiophene (donor) and pyridine (acceptor) units. 4a-6a, 5b, and 6b show photoluminescence in a range of 430-540 nm and give quantum yields (Φ) of 20-40%. 4b affords a high quantum yield of Φ = 71%. A linear correlation holds between the π-π* transition energy and the inverse of the number of the aromatic units [1/(m+4)] for the 4a-6a and 4b-6b series.