477795-42-9

Basic information

• Product Name: Pyridine, 4,4'-[(2,5-diiodo-1,4-phenylene)di-(1E)-2,1-ethenediyl]bis-
• CAS NO: 477795-42-9
• Molecular Formula: C20H14I2N2
• Molecular Weight: 536.154
• Mol File: 477795-42-9.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Pyridine, 4,4'-[(2,5-diiodo-1,4-phenylene)di-(1E)-2,1-ethenediyl]bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Pyridine, 4,4'-[(2,5-diiodo-1,4-phenylene)di-(1E)-2,1-ethenediyl]bis-(477795-42-9)
• EPA Substance Registry System: Pyridine, 4,4'-[(2,5-diiodo-1,4-phenylene)di-(1E)-2,1-ethenediyl]bis-(477795-42-9)

Safety Data

• Hazardous Substances Data: 477795-42-9(Hazardous Substances Data)

Upstream product

• 106-42-3 para-xylene 
• 1124-08-9 2,5-diiodo-p-xylene 
• 872-85-5 pyridine-4-carbaldehyde 
• 660870-76-8 [2,5-dichloro-4-(diethoxyphosphorylmethyl)benzyl]phosphonic acid diethyl ester 
• 56403-29-3 2,5-diiodo-1,4-bis(bromomethyl)benzene 

Relevant articles and documents

Novel cruciform structures as model compounds for coordination induced single molecule switches

We have synthesized various molecular cruciforms consisting of two different crossing π-systems and comprising crosswise arranged thiol- and pyridine-anchor groups. With these model compounds we strive towards the investigation of a new switching concept based on the potential dependent coordination of pyridines to gold electrodes in an electrochemical set-up. Integration of these cruciform molecules between both electrodes of a mechanically controlled break junction in a liquid environment gave insight into their single molecule transport properties. These studies allowed individual transport characteristics to be assigned to the bar subunits of the cruciforms but also revealed the remaining experimental challenges to realize the suggested switching concept. Schweizerische Chemische Gesellschaft.

Cruciform π-systems: Hybrid phenylene-ethynylene/phenylene-vinylene oligomers

The cruciform pentamers 3a-g were synthesized by a combined Horner-Sonogashira approach; their band gaps vary significantly with emission varying from blue to red depending upon their substituent pattern.