NEGATIVE-ION PHOTOELECTRON-SPECTROSCOPY OF THE HETERONUCLEAR ALKALI-METAL DIMER AND TRIMER ANIONS - NAK-, KRB-, RBCS-, KCS-, NA2K-, AND K2CS-

被引：15

作者：

EATON, JG ^{[1
]}

SARKAS, HW ^{[1
]}

ARNOLD, ST ^{[1
]}

MCHUGH, KM ^{[1
]}

BOWEN, KH ^{[1
]}

机构：

[1] JOHNS HOPKINS UNIV,DEPT CHEM,BALTIMORE,MD 21218

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 193卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(92)85697-9

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：

Negative ion photoelectron spectra are reported for the heteronuclear alkali dimer and trimer anions, NaK-, KRb-, KCs-, RbCs-, Na2K-, and K2Cs- at 488 nm. In addition to assigning all of the electronic transitions observed in the mixed dimer anion spectra, vertical detachment energies, adiabatic electron affinities, and dimer anion dissociation energies have also been determined. A linear correlation between mixed dimer EA(a)s and alpha(M*)/r(M*M)2 (alpha(M*) = the more electropositive alkali atom's polarizability) confirms the presence of ionic character in heteronuclear alkali dimers. Also, vertical detachment energies and adiabatic electron affinities are reported for the trimer systems.

引用

页码：141 / 146

页数：6

共 33 条

[11] MODEL POTENTIAL CALCULATIONS FOR GROUND AND EXCITED-STATES OF LINA [J].