РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ
The complexation of cis-Pd(NH3)2Cl2 and Pd(en)Cl2 (en – ethylenediamine) with 1-aminopropylidene-1,1-diphosphonic acid (APrDP, H4L) in solutions with extracellular concentration of chloride ions (0.15 mol/L) at the rations Pd(II):APrDP=1:1, 1:2 and 2:1 has been studied by pH-potentiometry, electro...
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| Дата: | 2022 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
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V.I.Vernadsky Institute of General and Inorganic Chemistry
2022
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| Онлайн доступ: | https://ucj.org.ua/index.php/journal/article/view/397 |
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| Назва журналу: | Ukrainian Chemistry Journal |
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oai:ojs2.1444248.nisspano.web.hosting-test.net:article-3972022-02-22T11:29:16Z COMPLEXATION OF CIS-Pd(NH3)2Cl2 AND Pd(en)Cl2 WITH 1-AMINOPROPYLIDENEDIPHOSPHONIC ACID РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ Kozachkova, Oleksandra Tsaryk, Nataliya Pekhnyo, Vasyl Trachevskij, Volodymyr diphosphonic acid, dichlorodiamminepalladium(II), dichloro(ethylenediamine)palladium(II), formation constants. The complexation of cis-Pd(NH3)2Cl2 and Pd(en)Cl2 (en – ethylenediamine) with 1-aminopropylidene-1,1-diphosphonic acid (APrDP, H4L) in solutions with extracellular concentration of chloride ions (0.15 mol/L) at the rations Pd(II):APrDP=1:1, 1:2 and 2:1 has been studied by pH-potentiometry, electron and NMR spectroscopy. It has been found that upon interaction in the system cis-Pd(NH3)2Cl2:AprDP=1:1, complexes of the equimolar composition [PdHL(NH3)Cl]2- (lgβ=38.84(4)), [PdHL(NH3)2]- (lgβ=43.14(2)) and [PdL(NH3)2]2- (lgβ=34.91(2)) are formed depending on pH, in which the APrDP molecule is coordinated in a bidentate fashion to the central ion by the nitrogen atom of the amine group and oxygen atom of the phosphonic group. In the case of twofold excess of ligand, bisligand complexes [PdH4L2]2- (lgβ=59.64(9)), [PdH3L2]3- (lgβ=57.39(19), [PdH2L2]4- (lgβ=52.37(17), [PdHL2]5- (lgβ=44.71(9)) [PdL2]6- (lgβ=36.57(6)) are formed, in which two APrDP molecules are coordinated in a bidentated fashion. At pH>6, complexes [PdHL2(NH3)]5- (lgβ=48.57(6)) and [PdL2(NH3)2]6- (lgβ=42.76(8)) are formed, in which the coordinated phosphonic groups of APrDP are sequentially replaced upon coordination by NH3. molecules. In the systems Pd(en)Cl2:APrDP=1:1 and 1:2, complexes only of equimolar composition: [Pd(en)(H2L)] (lgβ=28.88(9)), [Pd(en)(HL)]- (lgβ=24.67(8)) and [Pd(en)L]2- (lgβ=16.84(9)) are formed, whose coordination sphere contains the nitrogen atom of the amine group and oxygen atom of the phosphonic group of APrDP and two nitrogen atoms of the amine groups of an ethylenediamine. At the ratio Pd(II):APrDP=2:1, the formation of binuclear complexes {[Pd(NH3)2]2L} (lgβ=63.58(22)) and {[Pd(en)]2L} (lgβ= 25.18(4)), in which two palladium atoms have a different coordination environment. The coordination sphere of one of the palladium contains a nitrogen atom of the amine group and an oxygen atom of the phosphonic group of APrDP, and two NH3 molecules or two amine groups of ethylenediamine. The other palladium coordinates two oxygen atoms of phoshonic groups of APrDP and two NH3 molecules or two amine groups of ethylenediamine. V.I.Vernadsky Institute of General and Inorganic Chemistry 2022-02-16 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/397 10.33609/2708-129X.88.01.2022.3-22 Ukrainian Chemistry Journal; Vol. 88 No. 1 (2022): Ukrainian Chemistry Journal; 3-22 Украинский химический журнал; Том 88 № 1 (2022): Ukrainian Chemistry Journal; 3-22 Український хімічний журнал; Том 88 № 1 (2022): Український хімічний журнал; 3-22 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/397/208 |
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Ukrainian Chemistry Journal |
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| datestamp_date |
2022-02-22T11:29:16Z |
| collection |
OJS |
| language |
English |
| topic_facet |
diphosphonic acid dichlorodiamminepalladium(II) dichloro(ethylenediamine)palladium(II) formation constants. |
| format |
Article |
| author |
Kozachkova, Oleksandra Tsaryk, Nataliya Pekhnyo, Vasyl Trachevskij, Volodymyr |
| spellingShingle |
Kozachkova, Oleksandra Tsaryk, Nataliya Pekhnyo, Vasyl Trachevskij, Volodymyr РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| author_facet |
Kozachkova, Oleksandra Tsaryk, Nataliya Pekhnyo, Vasyl Trachevskij, Volodymyr |
| author_sort |
Kozachkova, Oleksandra |
| title |
РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| title_short |
РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| title_full |
РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| title_fullStr |
РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| title_full_unstemmed |
РЕАКЦІЇ ВЗАЄМОДІЇ ЦИС-Pd(NH3)2Cl2 ТА Pd(en)Cl2 З 1-АМІНОПРОПІЛІДЕН-1,1-ДИФОСФОНОВОЮ КИСЛОТОЮ |
| title_sort |
реакції взаємодії цис-pd(nh3)2cl2 та pd(en)cl2 з 1-амінопропіліден-1,1-дифосфоновою кислотою |
| title_alt |
COMPLEXATION OF CIS-Pd(NH3)2Cl2 AND Pd(en)Cl2 WITH 1-AMINOPROPYLIDENEDIPHOSPHONIC ACID |
| description |
The complexation of cis-Pd(NH3)2Cl2 and Pd(en)Cl2 (en – ethylenediamine) with 1-aminopropylidene-1,1-diphosphonic acid (APrDP, H4L) in solutions with extracellular concentration of chloride ions (0.15 mol/L) at the rations Pd(II):APrDP=1:1, 1:2 and 2:1 has been studied by pH-potentiometry, electron and NMR spectroscopy.
It has been found that upon interaction in the system cis-Pd(NH3)2Cl2:AprDP=1:1, complexes of the equimolar composition [PdHL(NH3)Cl]2- (lgβ=38.84(4)), [PdHL(NH3)2]- (lgβ=43.14(2)) and [PdL(NH3)2]2- (lgβ=34.91(2)) are formed depending on pH, in which the APrDP molecule is coordinated in a bidentate fashion to the central ion by the nitrogen atom of the amine group and oxygen atom of the phosphonic group. In the case of twofold excess of ligand, bisligand complexes [PdH4L2]2- (lgβ=59.64(9)), [PdH3L2]3- (lgβ=57.39(19), [PdH2L2]4- (lgβ=52.37(17), [PdHL2]5- (lgβ=44.71(9)) [PdL2]6- (lgβ=36.57(6)) are formed, in which two APrDP molecules are coordinated in a bidentated fashion. At pH>6, complexes [PdHL2(NH3)]5- (lgβ=48.57(6)) and [PdL2(NH3)2]6- (lgβ=42.76(8)) are formed, in which the coordinated phosphonic groups of APrDP are sequentially replaced upon coordination by NH3. molecules.
In the systems Pd(en)Cl2:APrDP=1:1 and 1:2, complexes only of equimolar composition: [Pd(en)(H2L)] (lgβ=28.88(9)), [Pd(en)(HL)]- (lgβ=24.67(8)) and [Pd(en)L]2- (lgβ=16.84(9)) are formed, whose coordination sphere contains the nitrogen atom of the amine group and oxygen atom of the phosphonic group of APrDP and two nitrogen atoms of the amine groups of an ethylenediamine.
At the ratio Pd(II):APrDP=2:1, the formation of binuclear complexes {[Pd(NH3)2]2L} (lgβ=63.58(22)) and {[Pd(en)]2L} (lgβ= 25.18(4)), in which two palladium atoms have a different coordination environment. The coordination sphere of one of the palladium contains a nitrogen atom of the amine group and an oxygen atom of the phosphonic group of APrDP, and two NH3 molecules or two amine groups of ethylenediamine. The other palladium coordinates two oxygen atoms of phoshonic groups of APrDP and two NH3 molecules or two amine groups of ethylenediamine. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2022 |
| url |
https://ucj.org.ua/index.php/journal/article/view/397 |
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