12595-79-8

Basic information

• Product Name: 2-Ethynylium-1-yl
• CAS NO: 12595-79-8
• Molecular Formula: C2
• Molecular Weight: 24.022
• Mol File: 12595-79-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-Ethynylium-1-yl(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Ethynylium-1-yl(12595-79-8)
• EPA Substance Registry System: 2-Ethynylium-1-yl(12595-79-8)

Safety Data

• Hazardous Substances Data: 12595-79-8(Hazardous Substances Data)

Upstream product

• 460-19-5 ethanedinitrile 
• 593-63-5 chloroacetylene 

Relevant articles and documents

An Electronic Absorption Spectrum of C2+:B4Σu- - X4Σg-

The B4Σu- - X4Σg- electronic transition of C2+ in a 5 K neon matrix has been identified.The 0-0, 1-0, and 2-0 bands are observed in absorption when (12)C2+ and (13)C2+ are produced in the matrix by photolysis followed by photoionization of various precursors, the most favorable one being chloroacetylene.The carrier and symmetry of the transition are assigned on the basis of spectroscopic and chemical evidence and by comparison to recent calculations.The 1-1 band is also observed in the wavelength-dispersed fluorescence spectrum of C2+, subsequent to laser excitation of the 1-0 absorption transition.The derived spectroscopic constants (in neon matrix) are ν00=19765(4) cm-1, w'e=1507(4) cm-1, ωκ'e=8(4) cm-1, and ν''(1-0)=1359(6) cm-1.