X-RAY, CRYSTAL STRUCTURE AND SOLUTION PHASE STUDIES OF A POLYMERIC SRII COMPOUND

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HOSSEIN AGHABOZORG; FIROOZI NAJMEH; ROSHAN LEILA; MIRZAEI MASOUD; SHOKROLLAHI ARDESHIR; AGHAEI ROGHAYYEH; AGHLMANDI ZIBA

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2011 | Volume:30 | Issue:4 (60) Page(s): 1-11

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Title

X-RAY, CRYSTAL STRUCTURE AND SOLUTION PHASE STUDIES OF A POLYMERIC SRII COMPOUND

Author(s)

Keywords

CRYSTAL STRUCTURE

SRII COMPLEX

HYDROGEN BONDING π-π

INTERACTIONS

C__H … π

AND C=O… π STACKING INTERACTIONS

Abstract

In the CRYSTAL STRUCTURE of the title polymeric compound, [C42 H38 N6 O33 Sr5.2 (H2 O)]n, five independent metal atoms (Sr1-Sr5) have different coordination environments. The Sr1 and Sr5 atoms are nine coordinated and feature distorted tricapped trigonal-prismatic and capped square-antiprismatic geometries, respectively. The rest Sr II atoms have eight coordination numbers.These units are connected via the carboxylate O atoms of mono- and di anionic forms of pyridine- 2, 6-dicarboxylic acid, (pydcH2), and bridging water molecules that resulted in the formation of polymeric layers in 3-D. In the CRYSTAL STRUCTURE, non-covalent INTERACTIONS consisting of hydrogen bonds (O_H...O and C_H...O), p-p [interplanar distances of 3.413 (2); 3.601 (2)Å] and C = O … p [O … p distances of 3.249 (3); 3.275 (3) Å] stacking INTERACTIONS play an important roles in stabilizing the structure. The protonation constants of propane-1, 2-diamine (1, 2-pn) and pyridine-2, 6-dicarboxylate ion (pydc)2-, the equilibrium constants for the pydc-1, 2-pn proton transfer system and the stoichiometry and stability of this system with Sr2+ ion in aqueous solution were investigated by potentiometric pH titrations. The stoichiometry of one of the most abundant complexed species in solution was found to be the same as that of the crystalline SrII complex.

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APA: Copy

HOSSEIN, AGHABOZORG, FIROOZI, NAJMEH, ROSHAN, LEILA, MIRZAEI, MASOUD, SHOKROLLAHI, ARDESHIR, AGHAEI, ROGHAYYEH, & AGHLMANDI, ZIBA. (2011). X-RAY, CRYSTAL STRUCTURE AND SOLUTION PHASE STUDIES OF A POLYMERIC SR^II COMPOUND. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 30(4 (60)), 1-11. SID. https://sid.ir/paper/594255/en

Vancouver: Copy

HOSSEIN AGHABOZORG, FIROOZI NAJMEH, ROSHAN LEILA, MIRZAEI MASOUD, SHOKROLLAHI ARDESHIR, AGHAEI ROGHAYYEH, AGHLMANDI ZIBA. X-RAY, CRYSTAL STRUCTURE AND SOLUTION PHASE STUDIES OF A POLYMERIC SR^II COMPOUND. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2011;30(4 (60)):1-11. Available from: https://sid.ir/paper/594255/en

IEEE: Copy

AGHABOZORG HOSSEIN, NAJMEH FIROOZI, LEILA ROSHAN, MASOUD MIRZAEI, ARDESHIR SHOKROLLAHI, ROGHAYYEH AGHAEI, and ZIBA AGHLMANDI, “X-RAY, CRYSTAL STRUCTURE AND SOLUTION PHASE STUDIES OF A POLYMERIC SR^II COMPOUND,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 30, no. 4 (60), pp. 1–11, 2011, [Online]. Available: https://sid.ir/paper/594255/en

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