Hexapole state-selection and orientation of asymmetric top molecules: CH2F2
作者： Toby D. Hain , Robert M. Moision , Thomas J. Curtiss
DOI: 10.1063/1.480043
关键词: Molecule 、 Atomic physics 、 Spectral line 、 Stark effect 、 Electric field 、 Rotational energy 、 Chemistry 、 State distribution 、 Voltage 、 Probability distribution
摘要: Molecular beams of the b-type asymmetric top molecule methylenefluoride (CH2F2) were focused and rotationally state-selected with an electrostatic hexapole. The focusing behavior is mediated by dependence rotational energy on electric field strength, Stark effect. matrix quantum theory needed to calculate energies molecules within are summarized. These calculated parameterized for lowest 165|JτM〉 levels CH2F2. Excellent agreement was found between classical trajectory simulations incorporating these experimentally measured hexapole spectra. Based this agreement, state distribution transmitted as a function voltage has been ascertained. Comparisons made simulated spectra a-type rotor, formaldehyde (H2CO). theoretical formalism describe orientational probability functi...
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