Photoelectron spectroscopy of naphthalene cluster anions
Photoelectron spectroscopy of naphthalene cluster anions
复制标题
萘簇阴离子的光电子能谱
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
K. Bowen
中科院分区：
文献类型：
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作者：
J. Song;S. Han;I. Chu;J. Kim;S. K. Kim;S. Lyapustina;Shoujun Xu;J. Nilles;K. Bowen
对均相萘簇阴离子（Nph）n=2-7-进行了质谱和阴离子光电子能谱研究，以表征其阴离子核的性质。在这一系列中最小的稳定物种被认为是萘二聚体阴离子。测定了萘团簇（n=2-7）的垂直脱离能，发现其垂直脱离能随团簇尺寸的增大而增大。通过外推，发现孤立萘分子的垂直脱离能为−0.18 eV，与文献中的绝热电子亲和势值一致。（Nph）2−和（Nph）1−（H2O）1的光谱特征之间的高度相似性意味着（Nph）2−具有溶剂化的单体阴离子核心。这里研究的所有萘簇阴离子被解释为具有单体阴离子核心。
Mass spectrometric and anion photoelectron spectroscopic studies of homogeneous naphthalene cluster anions, (Nph)n=2–7−, were conducted to characterize the nature of their anionic cores. The smallest stable species in this series was found to be the naphthalene dimer anion. The vertical detachment energies of naphthalene clusters, n=2–7, were determined and found to increase smoothly with cluster size. By extrapolation, the vertical detachment energy of the isolated naphthalene molecule was found to be −0.18 eV, in agreement with its adiabatic electron affinity value from literature. The strong similarity between the spectral profiles of (Nph)2− and (Nph)1−(H2O)1 implied that (Nph)2− possesses a solvated monomeric anion core. All of the naphthalene cluster anions studied here were interpreted as having monomer anion cores.