2417-82-5

Basic information

• Product Name: cyclopropyl radical
• Synonyms: cyclopropyl radical
• CAS NO: 2417-82-5
• Molecular Formula: C₃H₅
• Molecular Weight: 0
• Mol File: 2417-82-5.mol
• Article Data: 4

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: cyclopropyl radical(CAS DataBase Reference)
• NIST Chemistry Reference: cyclopropyl radical(2417-82-5)
• EPA Substance Registry System: cyclopropyl radical(2417-82-5)

Safety Data

• Hazardous Substances Data: 2417-82-5(Hazardous Substances Data)

Usage

InChI:InChI=1/C3H5/c1-2-3-1/h1H,2-3H2

Upstream product

• 79-20-9 acetic acid methyl ester 
• 4333-56-6 cyclopropyl bromide 
• 16571-41-8 trimethylsilyl radical 
• 75-19-4 cyclopropane 

Downstream Products

• 74-85-1 ethene 
• 107-02-8 acrolein 

Relevant articles and documents

Application of multi-photon ionization mass spectrometry to the study of the reactions O + C2H4, F + C3H6, F + c-C3H6, F + CH3OH, H + CH2OH and O + CH3O

The experimental arrangement of a time-of-flight mass spectrometer with multi-photon ionization and electron impact ionization is described. This set up was combined with a discharge flow reactor and a molecular beam sampling device. The detection of the radicals CH3, C3H5, CH2OH and their deuterated analogs by the wave-length selective multi-photon ionization allowed the identification of primary products of elementary reactions in the gas-phase (around 1 mbar).

Absolute Rate Constants for the Reaction of Triethylsilyl Radicals with Organic Halides

The absolute rate constants for the reactions of Et3Si. radicals with a number of organic halides have been measured in solution by using laser flash photolysis techniques.The reactivities cover a wide range; e.g., the rate constants at ca. 300 K are 4.3 * 109, 1.1 * 108, 2.5 * 106, and 5 M-1 s-1 for CH3CH2I, C6H5Br, (CH3)3CCl, and C6H5CH2F, respectively.Arrhenius parameters were determined for a few representative substrates.Thus, for CCl4, Ea = (0.78 +/- 0.24) kcal/mol and log (A/M-1 s-1) = 10.2 +/- 0.2, data which can be combined with relative rates from the literature to yield absolute rate constants for some additional substrates.Comparison of the Arrhenius parameters for halogen abstraction from several substrates suggests the involvment of charge-transfer interactions in some of these reactions.Such rate-enhancing interactions can have a greater influence on the preexponential factor than on the activation energy.An explanation for this phenomenon is advanced.Combination of our rate constants with data from literature also allows evaluation of the rates of inversion at the silicon center in triorganosilyl radicals as being in the range (3-12) * 109 s-1 at temperatures from 0 to 80 deg C which implies that a considerable activation barrier is involved in such process.