ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ
The complex formation of cis-Pd(NH3)2Cl2 with 1-hydroxyethylidene-1,1-diphosphonic (HEDP, H4L1), 3-amino-1-hydroxypropylidene-1,1-diphosphonic (AHPrDP, H4L2), and 1-aminopropylidene-1,1-diphosphonic (APrDP, H4L3) acids in aqueous solutions with the concentration CKCl = 0.15 mol/L, which corresponds...
Gespeichert in:
| Datum: | 2019 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
V.I.Vernadsky Institute of General and Inorganic Chemistry
2019
|
| Online Zugang: | https://ucj.org.ua/index.php/journal/article/view/98 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Ukrainian Chemistry Journal |
Institution
Ukrainian Chemistry Journal| id |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-98 |
|---|---|
| record_format |
ojs |
| spelling |
oai:ojs2.1444248.nisspano.web.hosting-test.net:article-982019-12-23T11:26:19Z INTERACTION OF CIS-Pd(NH3)2Cl2 WITH DIPHOSPHONIC ACIDS IN SOLUTIONS AT PHYSIOLOGICAL CHLORIDE-IONS CONCENTRATION ВЗАИМОДЕЙСТВИЕ ЦИС-Pd(NH3)2Cl2 C РЯДОМ ДИФОСФОНОВЫХ КИСЛОТ В РАСТВОРАХ С ФИЗИОЛОГИЧЕСКОЙ КОНЦЕНТРАЦИЕЙ ХЛОРИД-ИОНОВ ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ Kozachkova, Oleksandra Tsaryk , Nataliia Pekhnyo, Vasyl complexes of palladium, diphosphonic acids, formation constant, method of coordination, stability of complexes. The complex formation of cis-Pd(NH3)2Cl2 with 1-hydroxyethylidene-1,1-diphosphonic (HEDP, H4L1), 3-amino-1-hydroxypropylidene-1,1-diphosphonic (AHPrDP, H4L2), and 1-aminopropylidene-1,1-diphosphonic (APrDP, H4L3) acids in aqueous solutions with the concentration CKCl = 0.15 mol/L, which corresponds to the concentration of chloride ions in the intercellular fluid, has been studied by spectrophotometry and pH potentiometry. The results of studying the interaction between cis-Pd(NH3)2Cl2 and diphosphonic acids have been interpreted taking into account the equilibrium concentration distribution of complexes forming in Pd(NH3)2Cl2 solutions at a chloride ion concentration of 0.15 mol/L. It has been found that when Pd(NH3)2Cl2 is dissolved in 0.15 mol/L KCl, ammonia molecules are substituted by chloride ions and a water molecule in the pH range of 2 – 4 to form chloro-aqua complexes [PdCl4]2- and [PdCl3(H2O)]-. In the case of complex formation of Pd(II) chloro-aqua complexes with HEDP and AHPrDP, complexes with [Pd;2OPO3;2Cl] chromophore with bidentate coordination of ligands by two oxygen atoms of phosphonic groups are formed in the acidic pH range. At pH > 5, a [Pd(L1)(NH3)2]2– complex (lgβ = 30.55(5)) is formed in the cis-Pd(NH3)2Cl2 : HEDP = 1:1 system, and at pH > 6, a [Pd(HL2)(NH3)2]- complex (lgβ = 40.29(2)) is formed in the cis-Pd(NH3)2Cl2 : AHPrDP = 1:1 sys-tem. The formation of complexes with [Pd;2OPO3;2Namine] chromophore takes place with the displacement of chloride ions from the coordination sphere of complexes with [Pd;2OPO3;2Cl] chromophore by ammonia molecules. In the system cis-Pd(NH3)2Cl2 : APrDP = 1:1, the ligand is coordinated to Pd(II) in a bidentate fashion by the nitrogen atoms of the amine group and oxygen atoms of the phosphonic group to form a [Pd(H2L3)Cl2]2– complex with [Pd;Namine;OPO3;2Cl] chromophore in the acidic pH range. When pH is increased to 5 and then to 7, a sequential substitution of chloride ions by ammonia molecules takes place to form a [Pd(HL3)(NH3)Cl]2– complex (lgβ = 38.84(4)) with [Pd;2Namine;OPO3;Cl] chromophore and a [Pd(HL3)(NH3)2]– complex (lgβ = 43.14(2)) and [Pd(L3)(NH3)2]2– complex (lgβ = 34.91(2)) with [Pd;3Namine;OPO3] chromophore. V.I.Vernadsky Institute of General and Inorganic Chemistry 2019-12-16 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/98 10.33609/0041-6045.85.11.2019.3-14 Ukrainian Chemistry Journal; Vol. 85 No. 11 (2019): Ukrainian Chemistry Journal; 3-14 Украинский химический журнал; Том 85 № 11 (2019): Украинский химический журнал; 3-14 Український хімічний журнал; Том 85 № 11 (2019): Український хімічний журнал; 3-14 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/98/63 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2019-12-23T11:26:19Z |
| collection |
OJS |
| language |
English |
| topic_facet |
complexes of palladium diphosphonic acids formation constant method of coordination stability of complexes. |
| format |
Article |
| author |
Kozachkova, Oleksandra Tsaryk , Nataliia Pekhnyo, Vasyl |
| spellingShingle |
Kozachkova, Oleksandra Tsaryk , Nataliia Pekhnyo, Vasyl ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| author_facet |
Kozachkova, Oleksandra Tsaryk , Nataliia Pekhnyo, Vasyl |
| author_sort |
Kozachkova, Oleksandra |
| title |
ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| title_short |
ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| title_full |
ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| title_fullStr |
ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| title_full_unstemmed |
ВЗАЄМОДІЯ ЦИС-Pd(NH3)2Cl2 З ДИФОСФОНОВИМИ КИСЛОТАМИ В РОЗЧИНАХ З ФІЗІОЛОГІЧНОЮ КОНЦЕНТРАЦІЄЮ ХЛОРИД-ІОНІВ |
| title_sort |
взаємодія цис-pd(nh3)2cl2 з дифосфоновими кислотами в розчинах з фізіологічною концентрацією хлорид-іонів |
| title_alt |
INTERACTION OF CIS-Pd(NH3)2Cl2 WITH DIPHOSPHONIC ACIDS IN SOLUTIONS AT PHYSIOLOGICAL CHLORIDE-IONS CONCENTRATION ВЗАИМОДЕЙСТВИЕ ЦИС-Pd(NH3)2Cl2 C РЯДОМ ДИФОСФОНОВЫХ КИСЛОТ В РАСТВОРАХ С ФИЗИОЛОГИЧЕСКОЙ КОНЦЕНТРАЦИЕЙ ХЛОРИД-ИОНОВ |
| description |
The complex formation of cis-Pd(NH3)2Cl2 with 1-hydroxyethylidene-1,1-diphosphonic (HEDP, H4L1), 3-amino-1-hydroxypropylidene-1,1-diphosphonic (AHPrDP, H4L2), and 1-aminopropylidene-1,1-diphosphonic (APrDP, H4L3) acids in aqueous solutions with the concentration CKCl = 0.15 mol/L, which corresponds to the concentration of chloride ions in the intercellular fluid, has been studied by spectrophotometry and pH potentiometry. The results of studying the interaction between cis-Pd(NH3)2Cl2 and diphosphonic acids have been interpreted taking into account the equilibrium concentration distribution of complexes forming in Pd(NH3)2Cl2 solutions at a chloride ion concentration of 0.15 mol/L. It has been found that when Pd(NH3)2Cl2 is dissolved in 0.15 mol/L KCl, ammonia molecules are substituted by chloride ions and a water molecule in the pH range of 2 – 4 to form chloro-aqua complexes [PdCl4]2- and [PdCl3(H2O)]-.
In the case of complex formation of Pd(II) chloro-aqua complexes with HEDP and AHPrDP, complexes with [Pd;2OPO3;2Cl] chromophore with bidentate coordination of ligands by two oxygen atoms of phosphonic groups are formed in the acidic pH range. At pH > 5, a [Pd(L1)(NH3)2]2– complex (lgβ = 30.55(5)) is formed in the cis-Pd(NH3)2Cl2 : HEDP = 1:1 system, and at pH > 6, a [Pd(HL2)(NH3)2]- complex (lgβ = 40.29(2)) is formed in the cis-Pd(NH3)2Cl2 : AHPrDP = 1:1 sys-tem. The formation of complexes with [Pd;2OPO3;2Namine] chromophore takes place with the displacement of chloride ions from the coordination sphere of complexes with [Pd;2OPO3;2Cl] chromophore by ammonia molecules.
In the system cis-Pd(NH3)2Cl2 : APrDP = 1:1, the ligand is coordinated to Pd(II) in a bidentate fashion by the nitrogen atoms of the amine group and oxygen atoms of the phosphonic group to form a [Pd(H2L3)Cl2]2– complex with [Pd;Namine;OPO3;2Cl] chromophore in the acidic pH range. When pH is increased to 5 and then to 7, a sequential substitution of chloride ions by ammonia molecules takes place to form a [Pd(HL3)(NH3)Cl]2– complex (lgβ = 38.84(4)) with [Pd;2Namine;OPO3;Cl] chromophore and a [Pd(HL3)(NH3)2]– complex (lgβ = 43.14(2)) and [Pd(L3)(NH3)2]2– complex (lgβ = 34.91(2)) with [Pd;3Namine;OPO3] chromophore. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2019 |
| url |
https://ucj.org.ua/index.php/journal/article/view/98 |
| work_keys_str_mv |
AT kozachkovaoleksandra interactionofcispdnh32cl2withdiphosphonicacidsinsolutionsatphysiologicalchlorideionsconcentration AT tsaryknataliia interactionofcispdnh32cl2withdiphosphonicacidsinsolutionsatphysiologicalchlorideionsconcentration AT pekhnyovasyl interactionofcispdnh32cl2withdiphosphonicacidsinsolutionsatphysiologicalchlorideionsconcentration AT kozachkovaoleksandra vzaimodejstviecispdnh32cl2crâdomdifosfonovyhkislotvrastvorahsfiziologičeskojkoncentraciejhloridionov AT tsaryknataliia vzaimodejstviecispdnh32cl2crâdomdifosfonovyhkislotvrastvorahsfiziologičeskojkoncentraciejhloridionov AT pekhnyovasyl vzaimodejstviecispdnh32cl2crâdomdifosfonovyhkislotvrastvorahsfiziologičeskojkoncentraciejhloridionov AT kozachkovaoleksandra vzaêmodíâcispdnh32cl2zdifosfonovimikislotamivrozčinahzfízíologíčnoûkoncentracíêûhloridíonív AT tsaryknataliia vzaêmodíâcispdnh32cl2zdifosfonovimikislotamivrozčinahzfízíologíčnoûkoncentracíêûhloridíonív AT pekhnyovasyl vzaêmodíâcispdnh32cl2zdifosfonovimikislotamivrozčinahzfízíologíčnoûkoncentracíêûhloridíonív |
| first_indexed |
2025-09-24T17:43:33Z |
| last_indexed |
2025-09-24T17:43:33Z |
| _version_ |
1849658083032170496 |