81704-80-5

Basic information

• Product Name: isocyanomethide anion
• Synonyms: isocyanomethide anion
• CAS NO: 81704-80-5
• Molecular Weight: 40.0446
• Mol File: 81704-80-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: isocyanomethide anion(CAS DataBase Reference)
• NIST Chemistry Reference: isocyanomethide anion(81704-80-5)
• EPA Substance Registry System: isocyanomethide anion(81704-80-5)

Safety Data

• Hazardous Substances Data: 81704-80-5(Hazardous Substances Data)

Upstream product

• 593-75-9 methyl isocyanate 
• 16331-65-0 t-butoxide 
• 16331-64-9 ethanolate 
• 3315-60-4 methanolate 

Downstream Products

• 593-75-9 methyl isocyanate 
• 16331-65-0 t-butoxide 
• 57-12-5 cyanide^(1-) 
• 71000-82-3 cyanate 

Relevant articles and documents

Gas-Phase Negative Ion Chemistry of Methyl Isocyanide

The gas-phase negative ion chemistry of methyl isocyanide (CH3NC) has been studied at 0.4 Torr in a flowing afterglow apparatus and compared with that of its isomer acetonitrile (CH3CN).Methyl isocyanide has been determined to be 1.8 +/- 0.4 kcal/mol less acidic than acetonitrile in the gas phase, yielding ΔH0 acid(CH3NC) = 374 +/- 3 kcal/mol.The isocyano group has been found to stabilize an adjacent radical site better than does the cyano group.Methyl isocyanide reacts with bases by competing proton abstraction and SN2 processes.The reaction of the isocyanomethyl anion with a number of neutral reagents has also been studied.It undergoes hydrogen-deuterium exchange with D2O while cyanide ion is a major product upon reaction with O2, SO2, N2O, COS, CS2, and C6H5CHO.Other ions are also produced in smaller amounts with many of these reagents.The rates of reaction of the isomeric anions with CH3Br have also been determined.