ELECTRONIC STATES OF SOME SIMPLE ETHERS STUDIED BY VACUUM ULTRAVIOLET-ABSORPTION AND NEAR-THRESHOLD ELECTRON ENERGY-LOSS SPECTROSCOPY

被引：50

作者：

BREMNER, LJ ^{[1
]}

CURTIS, MG ^{[1
]}

WALKER, IC ^{[1
]}

机构：

[1] HERIOT WATT UNIV,DEPT CHEM,EDINBURGH EH14 4AS,MIDLOTHIAN,SCOTLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 08期

关键词：

D O I：

10.1039/ft9918701049

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：

Vacuum ultraviolet absorption spectra (250-105 nm, 5-11.8 eV) and near-threshold electron energy-loss spectra (0 eV-E(i,1)) have been recorded for dimethyl ether (1), diethyl ether (2), tetrahydrofuran (3), 1,4-dioxane (4) and 3,4-dihydropyran (5). For the saturated compounds 1-4 the low-lying electronically excited states are predominantly Rydberg in nature, selectively mixed with valence-excited states. Also, the lowest triplet state in each of the saturated molecules is within 0.5 eV of the 1n(o)3s state. The spectra of 5 resemble those of unsaturated hydrocarbons; its lowest triplet state (3-pi-pi*) is ca. 4.2 eV.

引用

页码：1049 / 1055

页数：7

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