论文部分内容阅读
The multiphoton ionization and fragmentation pathway of furan at 450nm is analyzed on the basis of statistical theory and Ladder-Switching model. Our calculation indicates that fragmentation takes plase after furan molecules absorb six photons of 450nm, C+ begins to appear after absorption of nine photons, production of C2+ ions needs absorption of at least 15 photons. Our interesting result is that C+ ions is produced by dissociation of C3H+, CH2+ and C3+ ions, not of C2+ ions. Theoretically computed relative abundance of C+/C2+ after absorption 15 photons agrees well with our experimental results.
The multiphoton ionization and fragmentation pathway of furan at 450 nm is analyzed on the basis of statistical theory and Ladder-Switching model. Our calculation indicates that fragmentation takes plase after furan molecules absorb six photons of 450 nm, C + begins to appear after absorption of nine photons, production of C2 + ions needs absorption of at least 15 photons. Our interesting result is that C + ions is produced by dissociation of C3H +, CH2 + and C3 + ions, not of C2 + ions. Theoretically computed relative abundance of C + / C2 + after absorption 15 photons agrees well with our experimental results.