196599-73-2

Basic information

• Product Name: Silane, [(4-ethoxyphenyl)ethynyl]trimethyl- (9CI)
• Synonyms: Silane, [(4-ethoxyphenyl)ethynyl]trimethyl- (9CI)
• CAS NO: 196599-73-2
• Molecular Formula: C13H18OSi
• Molecular Weight: 218.36692
• Product Categories: ETHOXY
• Mol File: 196599-73-2.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Silane, [(4-ethoxyphenyl)ethynyl]trimethyl- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, [(4-ethoxyphenyl)ethynyl]trimethyl- (9CI)(196599-73-2)
• EPA Substance Registry System: Silane, [(4-ethoxyphenyl)ethynyl]trimethyl- (9CI)(196599-73-2)

Safety Data

• Hazardous Substances Data: 196599-73-2(Hazardous Substances Data)

Upstream product

• 540-38-5 p-Iodophenol 
• 699-08-1 1-ethoxy-4-iodobenzene 
• 1066-54-2 trimethylsilylacetylene 

Downstream Products

• 1034142-69-2 1-ethoxy-4-(phenylethynyl)benzene 

Relevant articles and documents

Synthesis of diphenyl-diacetylene-based nematic liquid crystals and their high birefringence properties

We synthesized two series of diphenyl-diacetylene (DPDA)-based materials with alkoxy and alkyl tails of length m (DPDA-OCm and DPDA-Cm, respectively), and measured their nematic-phase birefringence (Δn) as a function of wavelength and temperature. We found that Δn decreases with an increase in m, possibly by a dilution effect of the low-Δn alkyl tail. Further, of the two series, Δn was found to be relatively higher in the DPDA-OCm materials, with the highest value of 0.4 obtained for DPDA-OC1 at 550 nm at 10 °C below the isotropic-to-nematic transition temperature. Further, we observed the temperature dependence for Δn, which is proportional to the order parameter (s). From extrapolation to s = 1 (the perfect orientation state), it is speculated that the DPDA-O moiety has the potential to afford a very large Δn of 0.9. The Royal Society of Chemistry 2012.