Determination of the ionization and dissociation energies of the hydrogen molecule

被引：174

作者：

Liu, Jinjun ^{[1
]}

Salumbides, Edcel J. ^{[2
]}

Hollenstein, Urs ^{[1
]}

Koelemeij, Jeroen C. J. ^{[2
]}

Eikema, Kjeld S. E. ^{[2
]}

Ubachs, Wim ^{[2
]}

Merkt, Frederic ^{[1
]}

机构：

[1] ETH, Phys Chem Lab, CH-8093 Zurich, Switzerland

[2] Vrije Univ Amsterdam, Dept Phys & Astron, Ctr Laser, NL-1081 HV Amsterdam, Netherlands

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 130卷 / 17期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

dissociation energies; ground states; hydrogen neutral molecules; ionisation potential; molecule-photon collisions; photodissociation; photoexcitation; photoionisation; potential energy functions; Rydberg states; HIGH RYDBERG STATES; GROUND-STATE; H-2; SPECTROSCOPY; POTENTIALS; DYNAMICS; CONSTANTS; FREQUENCY; CRYSTALS; SPECTRUM;

D O I：

10.1063/1.3120443

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The transition wave number from the EF (1)Sigma(+)(g)(v=0,N=1) energy level of ortho-H-2 to the 54p1(1)(0) Rydberg state below the X+ (2)Sigma(+)(g)(v(+)=0,N+=1) ground state of ortho-H-2(+) has been measured to be 25 209.997 56 +/-(0.000 22)(statistical)+/-(0.000 07)(systematic) cm(-1). Combining this result with previous experimental and theoretical results for other energy level intervals, the ionization and dissociation energies of the hydrogen molecule have been determined to be 124 417.491 13(37) and 36 118.069 62(37) cm(-1), respectively, which represents a precision improvement over previous experimental and theoretical results by more than one order of magnitude. The new value of the ionization energy can be regarded as the most precise and accurate experimental result of this quantity, whereas the dissociation energy is a hybrid experimental-theoretical determination.

引用

页数：8

共 48 条

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