Citation:
WANG Ji-Jiang, TIAN Bo-Nian, ZHAO Zhong-Min, HOU Xiang-Yang, TANG Long, ZHANG Mei-Li. Syntheses, Structures, and Properties of Two New Coordination Polymers Based on Tetracarboxylate and 2,2'-Bipyridine Mixed Ligands[J]. Chinese Journal of Structural Chemistry,
2014, 33(6): 915-920.
Syntheses, Structures, and Properties of Two New Coordination Polymers Based on Tetracarboxylate and 2,2'-Bipyridine Mixed Ligands
摘要:
Two new coordination polymers {[Zn2L1(2,2'-bpy)2(H2O)2]·4H2O}n (1) and [Zn2L2(2,2'-bpy)2(H2O)2]n (2) (H4L1=terphenyl-2,2',4,4'-tetracarboxylic acid, H4L2=quarterphenyl-2,2',4,4'-tetracarboxylic acid, and 2,2'-bpy=2,2'-bipyridine) have been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction studies. Complex 1 displays 2D wavelike networks, which are further joined together through O-H…O hydrogen bonds to give a 3D supramolecular network. Complex 2 exhibits 1D ladder-like chains, and they are further joined together by π-π stacking and O-H…O hydrogen bonding interactions to form a 3D supramolecular network. The results indicate that the backbone of carboxylate ligands has significant effects on the formation and structure of the resulting functional coordination polymers. Additionally, thermal stability and photoluminescent properties of 1 and 2 are also investigated in detail.
English
Syntheses, Structures, and Properties of Two New Coordination Polymers Based on Tetracarboxylate and 2,2'-Bipyridine Mixed Ligands
Abstract:
Two new coordination polymers {[Zn2L1(2,2'-bpy)2(H2O)2]·4H2O}n (1) and [Zn2L2(2,2'-bpy)2(H2O)2]n (2) (H4L1=terphenyl-2,2',4,4'-tetracarboxylic acid, H4L2=quarterphenyl-2,2',4,4'-tetracarboxylic acid, and 2,2'-bpy=2,2'-bipyridine) have been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction studies. Complex 1 displays 2D wavelike networks, which are further joined together through O-H…O hydrogen bonds to give a 3D supramolecular network. Complex 2 exhibits 1D ladder-like chains, and they are further joined together by π-π stacking and O-H…O hydrogen bonding interactions to form a 3D supramolecular network. The results indicate that the backbone of carboxylate ligands has significant effects on the formation and structure of the resulting functional coordination polymers. Additionally, thermal stability and photoluminescent properties of 1 and 2 are also investigated in detail.
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Key words:
- Zn(Ⅱ)
- / syntheses
- / crystal structure
- / photoluminescent properties
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