THE INFRARED SPECTRA OF 15 ORGANIC BROMIDES FROM 500 TO 800 CM-1
THE INFRARED SPECTRA OF 15 ORGANIC BROMIDES FROM 500 TO 800 CM-1
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DOI：
10.1021/ja01196a022
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发表时间：
1947-01-01
影响因子：
15
通讯作者：
DANIELS, F
中科院分区：
文献类型：
--
作者：
MORTIMER, FS;BLODGETT, RB;DANIELS, F
这项研究的目的是试图找出分子振动谱的变化与化学键的相对反应性之间的某种联系。之所以选择碳溴键，是因为两个原子质量的巨大差异会导致一种基本的振动模式，这种振动模式主要是由碳溴键的拉伸引起的。这个频率在较长红外线中的位置被认为是特别有利于研究的，因为在这个光谱区域发现的谐波很少。重叠光谱使得在较短红外波段对有机物质进行红外测量的解释变得困难，但在560厘米-1附近的区域，大多数这些复杂现象消失了。然而，本研究选择的化合物的光谱显示出其他的复杂性，导致没有一个单一的波段可以单独分配给碳溴键的振动。因此，原定的调查目的已被推迟。然而，在研究过程中记录的光谱并没有在其他文献中记录，因此，本文的目的是介绍这些光谱和对所涉及的红外波段的可能解释。
This investigation was undertaken in an at-tempt to find some correlation between shifts in the vibrational spectrum of a molecule and the relative reactivities of a chemical bond. The carbon-bromine bond was chosen because the large difference in the masses of the two atoms should lead to a fundamental mode of vibration which is due primarily to the stretching of this bond. The location of this frequency in the longer infrared was felt to be particularly favorable for study, because so few harmonics are found in this region of the spectrum. Overlapping spectra have rendered difficult the interpretation of infra-red measurements on organic materials in the shorter infrared, but in the region near 560 cm.-1 most of these complications disappear. However, the spectra of the compoundschosen for this study have shown other complications resulting in the fact that no single band can be assigned to the vibration of the carbon-bromine bond alone. For this reason the original purpose of the inves-tigation has been postponed. However, the spectra which were recorded during the course of the study are not recorded elsewhere in the litera-ture andfor this reason the present paper has been written to present these spectra and a possible interpretation of the infrared bands involved.