Si(CH_3)_3Cl分子电离电势和化学键能的测定

The Measurement of Adiabatic Ionization Potential of Si(CH_3)_3Cl and Chemical Bond Energies of Si(CH_3)_3 Cl^+

The photoionization spectroscopy of Si(CH3)3Cl in the range of 50 -130 nm wasstudied with synchrotron radiation source. The adiabatic ionization potentials of moleculeSi(CH3)3Cl and radical Si(CH3)3 are 10.06 ±0.02 eV and 7.00±0.03 eV respectively. Inaddition, the appearance potentials of Si(CH3)2Cl+, Si(CH3)3+, SiCl+ and SiCH3+ weredetermined:AP(Si(CH3)2Cl+) ＝10.49±0.02eV, AP(Si(CH3)3+) ＝ 11.91 ±0.02eVAP(SiCl+) ＝ 18.64 ±0.06eV, AP(SiCH3+)＝ 18.62 ±0.02eVFrom these, some chemical bond energies of Si(CH3)3Cl+ were calculated:D(Si(CH3)2Cl+ - CH3) ＝0.43 ±0.02eV, D(Si(CH3)3+ - Cl) ＝ 1.85 ± 0.02eVD(SiCH3+ - (2CH3 ＋ Cl)) ＝ 8.56 ± 0．06eV, D(SiCH3+ - 2CH3) ＝6.71±0．06eVD(SiCl+ - 3CH3) ＝ 8.58 ± 0.06eV, D(SiCl＋- 2CH3) ＝ 8.15 ±0.06eVD(SiCH3+- (CH3 ＋ Cl)) ＝8.13 ±0.

The photoionization spectroscopy of Si(CH3)3Cl in the range of 50 -130 nm wasstudied with synchrotron radiation source. The adiabatic ionization potentials of moleculeSi(CH3)3Cl and radical Si(CH3)3 are 10.06 ±0.02 eV and 7.00±0.03 eV respectively. Inaddition, the appearance potentials of Si(CH3)2Cl+, Si(CH3)3+, SiCl+ and SiCH3+ weredetermined:AP(Si(CH3)2Cl+) ＝10.49±0.02eV, AP(Si(CH3)3+) ＝ 11.91 ±0.02eVAP(SiCl+) ＝ 18.64 ±0.06eV, AP(SiCH3+)＝ 18.62 ±0.02eVFrom these, some chemical bond energies of Si(CH3)3Cl+ were calculated:D(Si(CH3)2Cl+ - CH3) ＝0.43 ±0.02eV, D(Si(CH3)3+ - Cl) ＝ 1.85 ± 0.02eVD(SiCH3+ - (2CH3 ＋ Cl)) ＝ 8.56 ± 0．06eV, D(SiCH3+ - 2CH3) ＝6.71±0．06eVD(SiCl+ - 3CH3) ＝ 8.58 ± 0.06eV, D(SiCl＋- 2CH3) ＝ 8.15 ±0.06eVD(SiCH3+- (CH3 ＋ Cl)) ＝8.13 ±0.06eV