171820-18-1

Basic information

• Product Name: 2,5-di-(4-fluorophenyl)-pyridine
• Synonyms: 2,5-di-(4-fluorophenyl)-pyridine
• CAS NO: 171820-18-1
• Molecular Weight: 267.278
• Mol File: 171820-18-1.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2,5-di-(4-fluorophenyl)-pyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-di-(4-fluorophenyl)-pyridine(171820-18-1)
• EPA Substance Registry System: 2,5-di-(4-fluorophenyl)-pyridine(171820-18-1)

Safety Data

• Hazardous Substances Data: 171820-18-1(Hazardous Substances Data)

Upstream product

• 116195-81-4 2,5-di-iodopyridine 
• 1765-93-1 4-fluoroboronic acid 
• 624-28-2 2,5-dibromopyridine 
• 98-80-6 phenylboronic acid 
• 460-00-4 1-Bromo-4-fluorobenzene 
• 214360-58-4 2-(4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 

Relevant articles and documents

Efficient Suzuki-Miyaura mono-arylation of symmetrical diiodo(hetero)arenes

A reliable protocol for converting 1,4-diiodo-2,3,5,6-tetrafluorobenzene into 1-(hetero)aryl-4-iodo-2,3,5,6-tetrafluorobenzene derivatives has been lacking in the literature. We have identified optimal conditions to achieve this conversion in good yields and have minimized formation of the bis-coupling product. The newly identified protocol involving the use of a syringe pump has been extended to other symmetrical diiodo(hetero)arenes.

Aryl 5-substitution of a phenyl-pyridine based ligand as a viable way to influence the opto-electronic properties of bis-cyclometalated Ir(iii) heteroleptic complexes

This manuscript reports on the synthesis, the photophysical study and the electroluminescent properties of a series of heteroleptic cyclometalated iridium(iii) complexes based on 2,5-diaryl-pyridines as C^N cyclometalating ligands and acetylacetonate as ancillary ligand. The complexes were characterised by elemental analysis, ESI-MS, multinuclear NMR, TGA and electrochemistry. Their optical properties were investigated by UV-Vis and photoluminescence. DFT and TD-DFT calculations provided further insights into the effects of the 5-aryl substitution on the electronic and photophysical properties of the new complexes. The presence of suitable π-extended ligands exerts a beneficial effect on the performances of the corresponding solution-processed light-emitting diodes, leading to a maximum brightness of 10620 cd m-2 at a current efficiency of 10.0 cd A-1.