73787-83-4Relevant academic research and scientific papers
Photochemistry and Dynamics of Vinyl Bromide and Vinyl Iodide in Rare Gas Matrices
Paolucci, Dora M.,Gunkelman, Katherine,McMahon, Michael T.,McHugh, Jeanine,Abrash, Samuel A.
, p. 10506 - 10510 (2007/10/02)
Dilute solid solutions of vinyl bromide in krypton and vinyl iodide in argon were photolyzed at 10 K with a medium pressure mercury lamp.When the vinyl bromide is photolyzed, both hydrogen bromide-acetylene complexes and bromoacetylene are observed as photolysis products.Kinetic analysis shows that the hydrogen bromide-acetylene complexes are the only primary photolysis products and that the bromoacetylene is formed by secondary photolysis of the hydrogen bromide-acetylene complexes.Similar results are observed for the photolysis of vinyl iodide, with hydrogen iodide-acetylene complexes the only primary products and iodoacetylene observed as a secondary photolysis product of the hydrogen iodide-acetylene complex.We present the first reported vibrational frequencies for the HI-acetylene complex.
Infrared Spectra of Hydrogen-Bonded ? Complexes between Hydrogen Halides and Acetylene
McDonald, Stephen A.,Johnson, Gary L.,Keelan, Brian W.,Andrews, Lester
, p. 2892 - 2896 (2007/10/02)
Hydrogen-bonded ? complexes C2H2--H-X have been formed by codeposition of C2H2 and HX in excess argon at 15 K and by vacuum-UV photolysis of vinyl halides.The strength of the hydrogen bond, as measured by the displacement of the H-X vibrational fundamental below the isolated HX value, decreases in the series HF, HCl, and HBr as expected.Similar complexes made from di- and thichloroethylenes give slightly higher H-Cl vibrations which show minimal interaction between the halide and the acetylene substituent.The H-F fundamentals for C2H4 and C2H2 complexes at 3732 and 3747 cm-1, respectively, show that the ? electrons in double and triple bonds are comparable hydrogen-bond acceptors.
