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|Title:||Conversion of linear to rhombic C₄ in the gas phase: A joint experimental and theoretical study|
|Other Titles:||Conversion of linear to rhombic C(4) in the gas phase: A joint experimental and theoretical study|
|Citation:||Journal of the American Chemical Society, 2000; 122(29):7105-7113|
|Publisher:||Amer Chemical Soc|
|Stephen J. Blanksby, Detlef Schröder, Suresh Dua, John H. Bowie, and Helmut Schwarz|
|Abstract:||Charge reversal (CR) and neutralization reionization (NR) experiments carried out on a 4-sector mass spectrometer demonstrate that isotopically labeled, linear C4 anion rearranges upon collisional oxidation. The cations and neutrals formed in these experiments exhibit differing degrees of isotopic scrambling in their fragmentation patterns, indicative of (at least) partial isomerization of both states. Theoretical studies, employing the CCSD(T)/aug-cc-pVDZ//B3LYP/6-31G(d) level of theory, favor conversion to the rhombic C4 isomer on both cationic and neutral potential-energy surfaces with the rhombic structures predicted to be slightly more stable than the linear forms in each case. The combination of experiment with theory indicates that the elusive rhombic C4 is formed as a cation and as a neutral following charge stripping of linear C4-.|
|Description:||Web Release Date: July 11, 2000|
|Rights:||© 2000 American Chemical Society|
|Appears in Collections:||Chemistry publications|
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