Scattering of electrons from 1-butene, H2C=CHCH2CH3, and 2-methylpropene, H2C=C(CH3)2, molecules

被引：8

作者：

Mozejko, Pawel ^{[1
]}

Ptasinska-Denga, Elzbieta ^{[1
]}

Szmytkowski, Czeslaw ^{[1
]}

Zawadzki, Mateusz ^{[1
]}

机构：

[1] Gdansk Univ Technol, Fac Appl Phys & Math, Dept Atom Phys & Luminescence, Atom Phys Grp, PL-80233 Gdansk, Poland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2012年 / 45卷 / 14期

关键词：

IONIZATION CROSS-SECTIONS; VIBRATIONAL-EXCITATION; POLYATOMIC-MOLECULES; ENERGY; HYDROCARBONS; SPECTROSCOPY; DIFFRACTION; COLLISION; ETHYLENE; ISOMERS;

D O I：

10.1088/0953-4075/45/14/145203

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report absolute grand total cross sections (TCSs) for electron scattering from 1-butene (H2C=CHCH2CH3) and 2-methylpropene (H2C=C(CH3)(2)) molecules, measured at electron impact energies ranging from 1 to 400 eV and from 1 to 350 eV, respectively, using a linear electron-transmission technique. The general shape of cross sections for both butene isomers looks similar. Two structures in each TCS energy curve are discernible: a small peak in the vicinity of 2.3 eV and a pronounced very broad enhancement with the maximum located around 8 eV. The magnitude of TCS for 2-methylpropene appears somewhat higher than that for 1-butene below 20 eV, while above 70 eV the TCS curves practically overlap. In addition, comparison is made of TCSs for an ethylene (H2C=CH2) molecule and its mono and double methyl-substituted derivatives: propene (H2C=CHCH3) and 2-methylpropene.

引用

页数：9

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