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Studies on the crystal structure and stability in solution of mixed ligand complex of palladium(II) with 2,2 '-bipyridine and L-aspartic acid
Alternative TitleStudies on the Crystal Structure and Stability in Solution of Mixed Ligand Complex of Palladium (II) with 2,2'-Bipyridine and L-Aspartic Acid
Gao EJ1; Zhang D1; Liu QT1
2003
Source PublicationACTA CHIMICA SINICA
ISSN0567-7351
Volume61Issue:11Pages:1834-1838
AbstractThe mixed ligand complex Pd(bpy) (L-asp).3.5H(2)O (bpy = 2,2'-bipyridine, L-asp = L-aspartic acid) (1) has been synthesized and characterized by IR spectra, elemental analysis and electroconductivity. The molecular structure and the packing of 1 have been determined by single crystal X-ray structure analysis. The results show that the Pd(II) in 1 has a square planar coordination geometry and the molecules of 1 are assembled via hydrogen bond and intermolecular aromatic ring stacking. The crystal of 1 belongs to tetragonal, space group P4(1)2(1)2, a = b = 1.5979(3) nm, c = 1.3749(5) nm, Z = 8, V = 3.5105 (15) nm(3). The stability of the mixed ligand complex was determined by the pH potentiometric titration technique in water at 37 degreesC and 0.10 ionic strength (NaCl). The results show that the complex is quite stable. The higher scale values of relative stability DeltalgK and lgX demonstrate that the complex possesses enhanced stability. The reasons that lead to these results were discussed in terms of pi-electron back donation and electroneutralization.
KeywordTERNARY COMPLEXES AMINO-ACIDS DERIVATIVES AGENTS mixed ligand complex palladium( II ) structure of crystal hydrogen bonding aromatic ring stacking stability constant
Indexed ByCSCD
Language英语
CSCD IDCSCD:1240800
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/142026
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.辽宁大学
3.NE Normal University
Recommended Citation
GB/T 7714
Gao EJ,Zhang D,Liu QT. Studies on the crystal structure and stability in solution of mixed ligand complex of palladium(II) with 2,2 '-bipyridine and L-aspartic acid[J]. ACTA CHIMICA SINICA,2003,61(11):1834-1838.
APA Gao EJ,Zhang D,&Liu QT.(2003).Studies on the crystal structure and stability in solution of mixed ligand complex of palladium(II) with 2,2 '-bipyridine and L-aspartic acid.ACTA CHIMICA SINICA,61(11),1834-1838.
MLA Gao EJ,et al."Studies on the crystal structure and stability in solution of mixed ligand complex of palladium(II) with 2,2 '-bipyridine and L-aspartic acid".ACTA CHIMICA SINICA 61.11(2003):1834-1838.
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