SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS
Different-metal complexes of lithium and germanium(IV) with hydroxycarbonic acids – citric (H4Citr), tartaric (H4Tart) and xylaric (H5Xylar) have been obtained for the first time and characterized by methods of elemental analyses, thermogravimetry, IR-specroscopy.In the first step of the compounds’...
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| Format: | Article |
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Odessa I. I. Mechnikov National University
2016-10-01
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| Series: | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
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| Online Access: | http://heraldchem.onu.edu.ua/article/view/79565 |
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| author | E. E. Martsinko I. I. Seifullina E. A. Chebanenko А. G. Pesaroglo A. Ph. Pozharitskiy E. B. Kravchenko |
| author_facet | E. E. Martsinko I. I. Seifullina E. A. Chebanenko А. G. Pesaroglo A. Ph. Pozharitskiy E. B. Kravchenko |
| author_sort | E. E. Martsinko |
| collection | DOAJ |
| description | Different-metal complexes of lithium and germanium(IV) with hydroxycarbonic acids – citric (H4Citr), tartaric (H4Tart) and xylaric (H5Xylar) have been obtained for the first time and characterized by methods of elemental analyses, thermogravimetry, IR-specroscopy.In the first step of the compounds’ synthesis, weighed portions of GeО2and hydroxycarbonic acid (H4Citr, H4Tart or H5Xylar) have been added into hot water (250-300 ml), heated (рН 1,5-2) and concentrated in the water bath to 50 ml (~4.5 h). In the second step, precisely weighed portion of СН3СООLi·2Н2О has been added to obtain solutions. The mixtures have been stirred for 5-10 min without heating and then filtered. The resulting complexes have been precipitated by adding an equal volumes of ethanol (for І) or acetonitrile (for III) to the corresponding solutions. Residue of the complex II have been precipitated from the corresponding solution in one day. The yield of the products has been 60–75%. Study of the thermal stability of complexesІ-IIIhas shown that their thermolysis is proceed stepwise. Their IR-spectrums contain bands ν(С=О) (only complex I), one or two νas(СОО–) bands and νs(СОО–) bands, three ν(Ge–O) bands and also alcoholate ν(С–О) (in the absence of the C–OH bending vibrations).According to the results of research and physical and chemical analyzes, there have been established, that obtained coordination compounds are complexes of cationic-anionic type: Li2[Ge(НCitr)2]∙2H2O (I), Li2[Ge2(OH)2(µ-Tart)2]∙4H2O (IІ), Li4[Ge2(OH)2(m-Xylar)2]∙4Н2О (III). Schemes of structures of the compounds I-IIIhave been proposed. Antipsychotic activity of the complexIIIhas been shown. |
| first_indexed | 2024-04-12T16:19:33Z |
| format | Article |
| id | doaj.art-eaae96526231440f89e8474a3b868a20 |
| institution | Directory Open Access Journal |
| issn | 2304-0947 2414-5963 |
| language | English |
| last_indexed | 2024-04-12T16:19:33Z |
| publishDate | 2016-10-01 |
| publisher | Odessa I. I. Mechnikov National University |
| record_format | Article |
| series | Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
| spelling | doaj.art-eaae96526231440f89e8474a3b868a202022-12-22T03:25:36ZengOdessa I. I. Mechnikov National UniversityVìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ2304-09472414-59632016-10-01213(59)324110.18524/2304-0947.2016.3(59).7956579565SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDSE. E. Martsinko0I. I. Seifullina1E. A. Chebanenko2А. G. Pesaroglo3A. Ph. Pozharitskiy4E. B. Kravchenko5Одеський національний університет імені І.І. Мечникова, кафедра загальної хімії та полімерівОдеський національний університет імені І.І. Мечникова, кафедра загальної хімії та полімерівОдеський національний університет імені І.І. Мечникова, кафедра загальної хімії та полімерівОдеський державний аграрний університет, кафедра садівництва, виноградарстваОдеський державний аграрний університет, кафедра садівництва, виноградарстваОдеський національний університет імені І.І. Мечникова, кафедра загальної хімії та полімерівDifferent-metal complexes of lithium and germanium(IV) with hydroxycarbonic acids – citric (H4Citr), tartaric (H4Tart) and xylaric (H5Xylar) have been obtained for the first time and characterized by methods of elemental analyses, thermogravimetry, IR-specroscopy.In the first step of the compounds’ synthesis, weighed portions of GeО2and hydroxycarbonic acid (H4Citr, H4Tart or H5Xylar) have been added into hot water (250-300 ml), heated (рН 1,5-2) and concentrated in the water bath to 50 ml (~4.5 h). In the second step, precisely weighed portion of СН3СООLi·2Н2О has been added to obtain solutions. The mixtures have been stirred for 5-10 min without heating and then filtered. The resulting complexes have been precipitated by adding an equal volumes of ethanol (for І) or acetonitrile (for III) to the corresponding solutions. Residue of the complex II have been precipitated from the corresponding solution in one day. The yield of the products has been 60–75%. Study of the thermal stability of complexesІ-IIIhas shown that their thermolysis is proceed stepwise. Their IR-spectrums contain bands ν(С=О) (only complex I), one or two νas(СОО–) bands and νs(СОО–) bands, three ν(Ge–O) bands and also alcoholate ν(С–О) (in the absence of the C–OH bending vibrations).According to the results of research and physical and chemical analyzes, there have been established, that obtained coordination compounds are complexes of cationic-anionic type: Li2[Ge(НCitr)2]∙2H2O (I), Li2[Ge2(OH)2(µ-Tart)2]∙4H2O (IІ), Li4[Ge2(OH)2(m-Xylar)2]∙4Н2О (III). Schemes of structures of the compounds I-IIIhave been proposed. Antipsychotic activity of the complexIIIhas been shown.http://heraldchem.onu.edu.ua/article/view/79565германійлітійгідроксикарбонові кислотикоординаційні сполукиантипсихотична активність |
| spellingShingle | E. E. Martsinko I. I. Seifullina E. A. Chebanenko А. G. Pesaroglo A. Ph. Pozharitskiy E. B. Kravchenko SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ германій літій гідроксикарбонові кислоти координаційні сполуки антипсихотична активність |
| title | SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS |
| title_full | SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS |
| title_fullStr | SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS |
| title_full_unstemmed | SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS |
| title_short | SYNTHESIS, STRUCTURE AND PROPERTIES OF MIXED-METAL Li-Ge(IV) COMPLEXES WITH CITRIC, TARTARIC AND XYLARIC ACIDS |
| title_sort | synthesis structure and properties of mixed metal li ge iv complexes with citric tartaric and xylaric acids |
| topic | германій літій гідроксикарбонові кислоти координаційні сполуки антипсихотична активність |
| url | http://heraldchem.onu.edu.ua/article/view/79565 |
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