IR multiple photon dissociation spectroscopy of MO2 + (M = V, Nb, Ta).

IR multiple photon dissociation spectroscopy of MO2 + (M = V, Nb, Ta).
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MO2 的红外多光子解离光谱(M = V、Nb、Ta)。

DOI:
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发表时间:
2020
影响因子:
4.4
通讯作者:
C. van der Linde
C. van der Linde
中科院分区:
化学2区
文献类型:
--
作者:
Frank J. Wensink;Maximilian G. Münst;Jakob Heller;M. Ončák;J. Bakker;C. van der Linde

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将激光蒸发团簇光源耦合到自由电子激光器的傅里叶变换离子回旋共振质谱仪光束线上,用于腔内实验。气相金属离子及其氧化物(VO2+、NbO2+和TaO2+)的形成和光谱用红外多光子解离光谱表征,通过原子氧的损失和克服3 eV-6 eV的碎裂能。在所有Mo2+基模中都观察到了该信号:在900 cm-1-1000 cm-1范围内的对称和反对称ν1和ν3伸缩模式以及在300 cm-1-450 cm-1范围内的ν2弯曲模式。观察到弯曲振动有一个显著的子结构,这至少部分是由旋转的子结构引起的。
A laser vaporization cluster source is coupled to the Fourier-transform ion cyclotron resonance mass spectrometer beamline of the free-electron laser for intracavity experiments. Gas phase metal ions and their oxides (VO2 +, NbO2 +, and TaO2 +) are formed and spectroscopically characterized using IR multiple-photon dissociation spectroscopy via loss of atomic oxygen and overcoming fragmentation energies of 3 eV-6 eV. The signal is observed for all MO2 + fundamental modes: the symmetric and anti-symmetric ν1 and ν3 stretch modes in the 900 cm-1-1000 cm-1 range and the ν2 bending mode in the 300 cm-1-450 cm-1 range. A remarkable substructure is observed for the bending vibration, which is at least partly due to the rovibrational substructure.
DOI: 10.1039/c9cp04586d
发表时间: 2019
期刊: Physical chemistry chemical physics : PCCP
影响因子: --
作者:
N. T. Zimmermann;T. M. Bernhardt;J. M. Bakker;U. Landman;S. M. Lang
通讯作者: S. M. Lang