Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O
Samo za registrovane korisnike
2011
Autori
Rychlewska, UrszulaWarzajtis, Beata
Radanović, Dušanka
Draskovic, Nenad S.
Stanojević, Ivana M.
Đuran, Miloš
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bi...s-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation.
Ključne reči:
M(II)-1,3-pdta complexes / Sr(II) ion / Synthesis / X-ray characterizationIzvor:
Polyhedron, 2011, 30, 6, 983-989Izdavač:
- Oxford : Pergamon-Elsevier Science Ltd
Finansiranje / projekti:
- Sinteza novih kompleksa metala i ispitivanje njihovih reakcija sa peptidima (RS-MESTD-Basic Research (BR or ON)-172036)
- Interakcije prirodnih proizvoda, njihovih derivata i kompleksnih jedinjenja sa proteinima i nukleinskim kiselinama (RS-MESTD-Basic Research (BR or ON)-172055)
DOI: 10.1016/j.poly.2010.12.045
ISSN: 0277-5387
WoS: 000290357100011
Scopus: 2-s2.0-79953206908
Institucija/grupa
IHTMTY - JOUR AU - Rychlewska, Urszula AU - Warzajtis, Beata AU - Radanović, Dušanka AU - Draskovic, Nenad S. AU - Stanojević, Ivana M. AU - Đuran, Miloš PY - 2011 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/915 AB - This paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bis-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation. PB - Oxford : Pergamon-Elsevier Science Ltd T2 - Polyhedron T1 - Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O VL - 30 IS - 6 SP - 983 EP - 989 DO - 10.1016/j.poly.2010.12.045 ER -
@article{ author = "Rychlewska, Urszula and Warzajtis, Beata and Radanović, Dušanka and Draskovic, Nenad S. and Stanojević, Ivana M. and Đuran, Miloš", year = "2011", abstract = "This paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bis-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation.", publisher = "Oxford : Pergamon-Elsevier Science Ltd", journal = "Polyhedron", title = "Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O", volume = "30", number = "6", pages = "983-989", doi = "10.1016/j.poly.2010.12.045" }
Rychlewska, U., Warzajtis, B., Radanović, D., Draskovic, N. S., Stanojević, I. M.,& Đuran, M.. (2011). Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O. in Polyhedron Oxford : Pergamon-Elsevier Science Ltd., 30(6), 983-989. https://doi.org/10.1016/j.poly.2010.12.045
Rychlewska U, Warzajtis B, Radanović D, Draskovic NS, Stanojević IM, Đuran M. Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O. in Polyhedron. 2011;30(6):983-989. doi:10.1016/j.poly.2010.12.045 .
Rychlewska, Urszula, Warzajtis, Beata, Radanović, Dušanka, Draskovic, Nenad S., Stanojević, Ivana M., Đuran, Miloš, "Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O" in Polyhedron, 30, no. 6 (2011):983-989, https://doi.org/10.1016/j.poly.2010.12.045 . .