Novel Eclipsed 2D Cadmium(II) Coordination Polymers with Open-Channel Structure Constructed from Terephthalate and 3-(2-Pyridyl)pyrazole:  Crystal Structures, Emission Properties, and Inclusion of Guest Molecules

2004 ◽  
Vol 43 (17) ◽  
pp. 5382-5386 ◽  
Author(s):  
Ru-Qiang Zou ◽  
Xian-He Bu ◽  
Ruo-Hua Zhang
Keyword(s):  
Crystal Structures ◽  
Coordination Polymers ◽  
Open Channel ◽  
Channel Structure ◽  
Guest Molecules ◽  
Emission Properties

Coordination Polymers of Silver(I) with the Flexible Tritopic Ligand 1,3,5-Tri(4-cyanophenoxy)benzene: Guest Inclusion and Luminescent Properties

2013 ◽  
Vol 66 (4) ◽  
pp. 436 ◽  
Author(s):  
Sandipan Roy ◽  
Kumar Biradha
Keyword(s):  
Crystal Structures ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Luminescent Properties ◽  
Guest Molecules ◽  
Space Group ◽  
Centrosymmetric Space Group ◽  
Aromatic Guest

A new flexible tritopic ligand, 1,3,5-tri(4-cyanophenoxy)benzene (1), was synthesised by the reaction of phloroglucinol and para-fluorobenzonitrile. Compound 1 crystallises in the non-centrosymmetric space group Pna21. The reaction of ligand 1 with AgBF4 in the presence of different aromatic guest molecules was found to result in coordination polymers, namely, {[Ag3(1)2(BF4)3(H2O)2]·2C7H8·2CH2Cl2}n (2), {[Ag3(1)2(BF4)3(H2O)2]·2C6H6·2CH2Cl2}n (3). The crystal structures of 2 and 3 reveal that ligand 1 is linked by AgI ions into three-dimensional networks containing channels that are occupied by dichloromethane and aromatic guest molecules. The luminescent properties of crystalline 1 and 3 differ significantly.

Hydrothermal synthesis and characteristics of 3-D hydrated bismuth oxalate coordination polymers with open-channel structure

2008 ◽  
Vol 181 (5) ◽  
pp. 1133-1140 ◽  
Author(s):  
Xinxiang Chen ◽  
Yanning Cao ◽  
Hanhui Zhang ◽  
Yiping Chen ◽  
Xuehuan Chen ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Coordination Polymers ◽  
Open Channel ◽  
Channel Structure

Synthesis and Structure of a Clathrated Two-Dimensional Metal-Organic Framework: [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2·H2O (L = Bis(1-pyrazinylethylidene)hydrazine)

2008 ◽  
Vol 73 (1) ◽  
pp. 24-31
Author(s):  
Dayu Wu ◽  
Genhua Wu ◽  
Wei Huang ◽  
Zhuqing Wang
Keyword(s):  
Metal Organic Framework ◽  
Channel Structure ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Guest Molecules ◽  
X Ray ◽  
Square Planar ◽  
Metal Organic ◽  
Aqueous Meoh ◽  
Organic Framework

The compound [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2 was obtained by the reaction of Cd(ClO4)2, bis(1-pyrazinylethylidene)hydrazine (L) and 4,4'-bipyridine in aqueous MeOH. Single-crystal X-ray diffraction has revealed its two-dimensional metal-organic framework. The 2-D layers superpose on each other, giving a channel structure. The square planar grids consist of two pairs of shared edges with Cd(II) ion and a 4,4'-bipyridine molecule each vertex and side, respectively. The square cavity has a dimension of 11.817 × 11.781 Å. Two guest molecules of bis(1-pyrazinylethylidene)hydrazine are clathrated in every hydrophobic host cavity, being further stabilized by π-π stacking and hydrogen bonding. The results suggest that the hydrazine molecules present in the network serve as structure-directing templates in the formation of crystal structures.

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