A Far-Infrared Study of the Structures of Tris(Methyl Methyl Phosphonate) Iron(III), Tris(EthylEthylphosphonate) Iron(III), and Tris(IsopropylMethylphosphonate) Iron(III)
作者:
EugeneP. Scheide,
GeorgeG. Guilbault,
期刊:
Spectroscopy Letters
(Taylor Available online 1971)
卷期:
Volume 4,
issue 9
页码: 329-335
ISSN:0038-7010
年代: 1971
DOI:10.1080/00387017108064659
出版商: Taylor & Francis Group
关键词: far-infrared;organophosphorus complexes;structures
数据来源: Taylor
摘要:
In articles by Kokalas et al.1,2studies were made of the interaction of FeCl3with diisopropyl methylphosphonate (DIMP), diethyl ethylphosphonate (DEEP), and dimethyl methyl phosphonate (DMMP) and structures were proposed for the reaction products. When the reactions are run under much milder conditions, there is much evidence3–5to support a different mechanism than that proposed by Kokalas and an altogether different structure of the complexes formed. In the structures proposed by Kokalas et al. the iron atom is surrounded by six oxygen atoms and these are the only bonding atoms to the iron. But on the other hand, in donor-acceptor complexes as are formed in chemisorption reactions,3–5some of these sites are filled by chloride ions and this difference should be ascertained quite easily by far-infrared spectroscopy. It was the purpose of this study to look at the far-infrared data and either further substantiate the structures proposed or to propose new ones.
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