Dissociation energies of molecular hydrogen and the hydrogen molecular ion

被引：82

作者：

Zhang, YP ^{[1
]}

Cheng, CH ^{[1
]}

Kim, JT ^{[1
]}

Stanojevic, J ^{[1
]}

Eyler, EE ^{[1
]}

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.92.203003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have obtained improved values for the dissociation energies of molecular hydrogen and its ion by using a high-resolution pulse-amplified laser to probe the second dissociation limit. The onset of the vibrational continuum is observed by state-selective detection of the atomic products of dissociation, and several auxiliary measurements link the results to the ground state. The dissociation energies are accurate to 0.010-0.026 cm(-1), improving previous measurements by a factor of 3-7. Agreement with ab initio calculations is good for H-2, D-2, and their ions, but not for HD and HD+.

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页码：203003 / 1

页数：4

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