Resonant two-photon ionization spectroscopy of the 13-electron triatomic Si2N

被引：18

作者：

Brugh, DJ

Morse, MD

机构：

[1] Department of Chemistry, University of Utah, Salt Lake City

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 267卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(97)00108-5

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：

Resonant two-photon ionization spectra of (Si2N)-Si-28, (Si2N)-Si-28,29 and (Si2N)-Si-28,30 have been collected between 32000 cm-' and 36000 cm(-1). A fit of the rotationally resolved spectrum of the most intense band of (Si2N)-Si-28 at 34314 cm(-1) reveals the transition to be (2) Sigma(u)(+) <-- (X) over tilde(2)II(g,1/2). A molecular orbital analysis is made to justify the assignment. The geometric structure is determined to be linear and centrosymmetric in both the ground and excited state with r(0)(n)(Si-N) = 1.6395 +/- 0.0014 Angstrom and r'(Si-N) = 1.6343 +/- 0.0014 Angstrom. The ionization energy is determined to be less than 8.51 eV.

引用

页码：370 / 376

页数：7

共 22 条

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