Dissociative Electron Attachment to Hydrogen Halides and their Deuterated Analogs

Journal of Chemical Physics - Tập 48 Số 5 - Trang 1949-1955 - 1968
L. G. Christophorou1, R. N. Compton1, Hannah Dickson1
1Health Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee

Tóm tắt

The swarm-beam technique has been employed to study the electron-attachment processes in HX and DX (X = halogen) molecules. Attachment cross sections as a function of electron energy σc(ε), corrected for the finite width of the electron beam, are reported for the direct dissociative attachment, i.e., HX(or DX) + e→H (or D) + X−. There is a strong increase in σc(ε) in going from HCl to HBr to HI, i.e., with decreasing energy of the dissociative-attachment peak. The ratio of σc(ε) for isotopic species is found to be very nearly equal to the square root of the inverse ratio of the reduced masses of the products. In addition to the direct dissociative electron attachment to HX and DX molecules, a separate attachment process occurs at thermal electron energies.

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Tài liệu tham khảo

1929, Phil. Mag., 7, 277, 10.1080/14786440208564739

1930, Phil. Mag., 10, 145, 10.1080/14786443009461565

1934, J. Chem. Phys., 2, 827, 10.1063/1.1749403

1959, Phys. Rev., 114, 1028, 10.1103/PhysRev.114.1028

1927, Phys. Rev., 30, 614, 10.1103/PhysRev.30.614

1936, Phys. Rev., 50, 722, 10.1103/PhysRev.50.722

1954, Z. Naturforsch., 9a, 335

1956, J. Res. Natl. Bur. Std., 57, 367, 10.6028/jres.057.039

1957, J. Chem. Phys., 26, 1281, 10.1063/1.1743508

1958, J. Chem. Phys., 29, 503, 10.1063/1.1744531

1959, Soviet Phys.—JETP, 35, 783

1965, J. Chem. Phys., 43, 4273, 10.1063/1.1696685

1966, J. Chem. Phys., 45, 536, 10.1063/1.1727601

1967, Phys. Rev., 154, 110, 10.1103/PhysRev.154.110

1962, Phys. Rev., 126, 2089, 10.1103/PhysRev.126.2089

1957, Rev. Sci. Instr., 28, 103, 10.1063/1.1715825

1960, Phys. Rev., 117, 1411, 10.1103/PhysRev.117.1411

1967, J. Chem. Phys., 47, 3138, 10.1063/1.1712365

1958, Health Phys., 1, 39, 10.1097/00004032-195801000-00006

1948, Phys. Rev., 74, 1406, 10.1103/PhysRev.74.1406

1956, Rev. Sci. Instr., 27, 716, 10.1063/1.1715680

1968, J. Chem. Phys., 48, 1956, 10.1063/1.1668997

1964, J. Chem. Phys., 41, 255, 10.1063/1.1725630

1965, Phys. Rev. Letters, 14, 533, 10.1103/PhysRevLett.14.533

1967, Phys. Rev., 158, 25, 10.1103/PhysRev.158.25

1967, J. Chem. Phys., 46, 1530

1966, Phys. Rev., 150, 14, 10.1103/PhysRev.150.14

1966, Phys. Rev., 150, 14, 10.1103/PhysRev.150.14

1959, Phys. Rev., 113, 816, 10.1103/PhysRev.113.816

1968, J. Chem. Phys., 48, 901, 10.1063/1.1668733

1963, J. Chem. Phys., 38, 780, 10.1063/1.1733743

1966, Phys. Letters, 23, 656, 10.1016/0031-9163(66)90211-3

1963, J. Chem. Phys., 38, 1540, 10.1063/1.1776916

1967, Phys. Rev., 163, 103, 10.1103/PhysRev.163.103

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Journal of Chemical Physics

Tập 48 Số 5

1949-1955

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