74317-27-4

Basic information

• Product Name: 18-crown-6/p-nitrobenzenediazonium tetrafluoroborate complex
• Synonyms: 18-crown-6/p-nitrobenzenediazonium tetrafluoroborate complex
• CAS NO: 74317-27-4
• Molecular Weight: 501.24
• Mol File: 74317-27-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 18-crown-6/p-nitrobenzenediazonium tetrafluoroborate complex(CAS DataBase Reference)
• NIST Chemistry Reference: 18-crown-6/p-nitrobenzenediazonium tetrafluoroborate complex(74317-27-4)
• EPA Substance Registry System: 18-crown-6/p-nitrobenzenediazonium tetrafluoroborate complex(74317-27-4)

Safety Data

• Hazardous Substances Data: 74317-27-4(Hazardous Substances Data)

Upstream product

• 17455-13-9 18-crown-6 ether 
• 456-27-9 4-nitrobenzenediazonium tetrafluoroborate 

Downstream Products

• 17455-13-9 18-crown-6 ether 
• 456-27-9 4-nitrobenzenediazonium tetrafluoroborate 

Relevant articles and documents

Influence of Steric and Electronic Effects on the Binding of Arenediazonium Cations to 18-Crown-6 in Methanol at 25 deg C

Log K, ΔH, and TΔS values for the interaction of several arenediazonium salts with 18-crown-6 were determined in methanol at 25 deg C by the calorimetric titration technique.The complex of benzenediazonium cation with 18-crown-6 is enthalpy stabilized with log K = 2.50.Substitution of a methyl group onto the ortho position(s) of benzenediazonium cation results in a total loss of complex stability.Substitution of various groups onto the para position results in changes in complex stability according to the electronic effect exerted in the diazonium moiety.A linear Hammett relationship (ρ = 0.65) was found between log K and ?+p values associated with the para substituent.