461-68-7

Basic information

• Product Name: perfluoroallene
• Synonyms: perfluoroallene;1,1,3,3-Tetrafluoroallene;1,1,3,3-Tetrafluoropropadiene;Tetrafluoro-1,2-propanediene
• CAS NO: 461-68-7
• Molecular Formula: C₃F₄
• Molecular Weight: 112.03
• Mol File: 461-68-7.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 79.8°Cat760mmHg
• Flash Point: 2.1°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 97mmHg at 25°C
• CAS DataBase Reference: perfluoroallene(CAS DataBase Reference)
• NIST Chemistry Reference: perfluoroallene(461-68-7)
• EPA Substance Registry System: perfluoroallene(461-68-7)

Safety Data

• Hazardous Substances Data: 461-68-7(Hazardous Substances Data)

Usage

InChI:InChI=1/CF2NPS/c2-5(3)4-1-6

Upstream product

• 356-35-4 Perfluoro-1,5-hexadiene 
• 689-99-6 difluoroacetylene 
• 460-86-6 1,3-dibromo-1,1,3,3-tetrafluoro-propane 
• 77547-36-5 3,4-Difluoro-3-cyclobutene-1,2-dione 
• 41895-33-4 poly(vinylidene fluoride) 
• 19721-29-0 1,2,3,3-tetrafluorocyclopropene 
• 460-61-7 3-bromo-1,1,3,3-tetrafluoro-propene 

Downstream Products

• 690-27-7 2H-pentafluoropropene 
• 460-61-7 3-bromo-1,1,3,3-tetrafluoro-propene 
• 406-46-2 3-chloro-1,1,3,3-tetrafluoropropene 
• 85738-59-6 4-difluoromethylene-2-ethyl-5,5-difluoro-3-phenylisoxazolidine 
• 711-40-0 1-benzyl-3-(1-difluoromethylene-2,2,3,3,5,5-hexafluoropent-4-enyl)-2,5-dimethyl-1H-pyrrole 
• 676095-45-7 N-benzyl-3,3,3-trifluoropropionamide 
• 20174-11-2 1,3,3,3-tetrafluoropropyne 
• 61886-93-9 1,3-difluoroallene 
• 676095-46-8 N-(2-phenylethyl)-3,3,3-trifluoropropionamide 

Relevant articles and documents

Squaric acid difluoride

Hitherto unknown squaric acid difluoride (3,4-difluoro-3-cyclobutene-1,2-dione) (1a) has been synthesized in 71% yield by gas phase fluorination of squaric acid dichloride (1c) with KF at 250°C. (1a) has been characterized by multinuclear NMR, mass, IR and Raman spectra. The IR spectrum is in excellent agreement with its ab initio prediction (MP2, 6-311 + G(2d, p)). The vacuum thermolysis of (1a) at 700°C does not yield the expected decarbonylation product FCCF (2a) although the precursor of the latter, F2CCCO, and three C3F4 isomers (propyne, allene, cyclopropene) which are also found as decomposition products of (2a) have been identified.

Isolation, Characterization and Some Properties of Free Difluoroethyne, FCCF

Difluoroethyne, FCCF 1, has been prepared by vacuum pyrolysis of perfluoro-1,2,3-triazine, isolated in pure form and characterized by 19F NMR and gas phase IR spectroscopy; its decomposition, with a half-life-time at 300 K and ca. 2.5 mbar of ca. 15 min, yields in the first step a polymer and :CF2, the latter either oligomerizing or reacting with 1 to form three different C3F4 isomers.

Infrared Multiphoton-Induced Isomerization of Tetrafluorocyclopropene

Infrared multiphoton excitation of tetrafluorocyclopropene (TFCP) leads to the unexpected formation of tetrafluoroallene (TFA) and tetrafluoropropyne (TFP).The ratio of TFP to TFA formed in the reaction is independent of fluence and pressure, and no other products are formed.The conversion per pulse increases as the pressure of TFCP increases but decreases as the pressure of a buffer gas or the products increases.The apparent intramolecular 1,2-fluorine migration required to form the products is discussed in terms of both unimolecular and bimolecular processes.