THE VIBRATION-SPECTRA OF THE DIIODIDES OF THE 1ST-ROW TRANSITION-METALS - THE INFRARED-SPECTRA OF GASEOUS CAI2, MNI2 AND ZNI2

被引：5
|
作者：
KONINGS, RJM
FEARON, JE
机构：
[1] Netherlands Energy Research Foundation, ECN, 1755 ZG Petten
来源：
CHEMICAL PHYSICS LETTERS | 1993年 / 206卷 / 1-4期
关键词：
D O I：
10.1016/0009-2614(93)85516-Q
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：
The infrared spectra of the gaseous CaI2, MnI2 and ZnI2 Molecules have been measured by high-temperature infrared spectroscopy. The results are consistent with a linear geometry for all three molecules. On the basis of the present results and previous studies on the first-row transition metal iodides, the trends in the force constants of the Zn-Ca series are examined. It is shown that the stretching force constants steadily decrease from Zn to Ca, in agreement with an ionic bonding. The bending force constants show a different pattern, where the effect of the non-uniform distribution of the d electrons is evident from significant deviations from the Zn-Mn-Ca line for the iodides of nickel, iron and chromium.
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页码：57 / 61
页数：5
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