| Autor: |
Smol'skaya, E. L., Stoyanov, E. S., Egutkin, N. L. |
| Zdroj: |
Solvent Extraction and Ion Exchange; September 1991, Vol. 9 Issue: 4 p649-675, 27p |
| Abstrakt: |
The method of IR spectroscopy was used to study extracts of p-ni troplienol (NP) with neat butyl acetate (BA). It was found that hydrated H-complexes NP'H2O't (BA) 2 were preferably formed. In those complexes, the molecule of NP is H-bonded with the oxygen in H20, while both protons of H20 are H-bonded with the BA molecules. With growing C, polymers (NP H2O BA) 'BA containing bridged molecules of BA are formed. The C=0-groups in BA are H-bonded with two water molecules. The NP extracts with 1.5 M BA solutions in CCl24 contain mostly H-coraplexes as NP'BA associated with another BA molecule by outer-spheric interactions. Also, hydrates NP'(H20) BA with 1=1,2 are found at high NP concentration, whereas NP'H20'(BA) 2 is formed at low NP concentration. Our discussion is concerned with the existing interconnection between the structure and composition of associftes formed in the extracts and the strengths of H-bond in these associates, judged by the values of low-frequency shifts υOH) of H20 and NP and υC=0) of BA in their IR spectra. |
| Databáze: |
Supplemental Index |
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