INFRARED-SPECTRA OF MATRIX-ISOLATED AND SOLID ETHYLENE - FORMATION OF ETHYLENE DIMERS

被引：79

作者：

RYTTER, E ^{[1
]}

GRUEN, DM ^{[1
]}

机构：

[1] ARGONNE NATL LAB, DIV CHEM, ARGONNE, IL 60439 USA

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1979年 / 35卷 / 03期

关键词：

D O I：

10.1016/0584-8539(79)80137-3

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Spectra of matrices with ethylene/argon ratios from 1/1 to 1/999 and a 1/24 ethylene/xenon matrix have been recorded in the temperature range 15-105 K. From relative i.r. intensities, frequency shifts and statistical calculations, the data are interpreted in terms of a monomer → dimer → aggregate → crystal scheme. It is proposed that the dimer, (C2H4)2, has D2d symmetry with a structure determined by quadruple hydrogen bonding and hydrogen-hydrogen repulsion. A method is described for calculation of the vibrational splitting due to interactions between the dimer molecular constituents. Solid ethylene has been studied between 15 and 85K. A transformation between two crystalline phases is characterized. © 1979.

引用

页码：199 / 207

页数：9

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