Temperature-controlled synthesis and luminescent properties of two novel coordination polymers modeled by hexa-carboxylate ligand derived from cyclotriphosphazene

2013 ◽  
Vol 42 (7) ◽  
pp. 2588-2593 ◽  
Author(s):  
Bao Li ◽  
Xiaomei Dai ◽  
Xianggao Meng ◽  
Tianle Zhang ◽  
Chengmei Liu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Luminescent Properties ◽  
Carboxylate Ligand ◽  
Controlled Synthesis ◽  
Temperature Controlled

Temperature-controlled Cd(II)–phosphonate coordination polymers: Syntheses, crystal structures, and luminescent properties

Polyhedron ◽  
2016 ◽  
Vol 115 ◽  
pp. 54-60 ◽  
Author(s):  
Hui-Ling Sung ◽  
Cheng-Hua Lee ◽  
Jui-En Wu ◽  
Yuh-Sheng Wen ◽  
Tien-Wen Tseng ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Coordination Polymers ◽  
Luminescent Properties ◽  
Temperature Controlled

scholarly journals Pyrene Carboxylate Ligand Based Coordination Polymers for Microwave-Assisted Solvent-Free Cyanosilylation of Aldehydes

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1101
Author(s):  
Anirban Karmakar ◽  
Anup Paul ◽  
Elia Pantanetti Sabatini ◽  
M. Fátima C. Guedes da Silva ◽  
Armando J. L. Pombeiro
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Metal Ion ◽  
Solvent Free ◽  
Lewis Acidity ◽  
Carboxylate Ligand ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microwave Assisted

The new coordination polymers (CPs) [Zn(μ-1κO1:1κO2-L)(H2O)2]n·n(H2O) (1) and [Cd(μ4-1κO1O2:2κN:3,4κO3-L)(H2O)]n·n(H2O) (2) are reported, being prepared by the solvothermal reactions of 5-{(pyren-4-ylmethyl)amino}isophthalic acid (H2L) with Zn(NO3)2.6H2O or Cd(NO3)2.4H2O, respectively. They were synthesized in a basic ethanolic medium or a DMF:H2O mixture, respectively. These compounds were characterized by single-crystal X-ray diffraction, FTIR spectroscopy, thermogravimetric and elemental analysis. The single-crystal X-ray diffraction analysis revealed that compound 1 is a one dimensional linear coordination polymer, whereas 2 presents a two dimensional network. In both compounds, the coordinating ligand (L2−) is twisted due to the rotation of the pyrene ring around the CH2-NH bond. In compound 1, the Zn(II) metal ion has a tetrahedral geometry, whereas, in 2, the dinuclear [Cd2(COO)2] moiety acts as a secondary building unit and the Cd(II) ion possesses a distorted octahedral geometry. Recently, several CPs have been explored for the cyanosilylation reaction under conventional conditions, but microwave-assisted cyanosilylation of aldehydes catalyzed by CPs has not yet been well studied. Thus, we have tested the solvent-free microwave-assisted cyanosilylation reactions of different aldehydes, with trimethylsilyl cyanide, using our synthesized compounds, which behave as highly active heterogeneous catalysts. The coordination polymer 1 is more effective than 2, conceivably due to the higher Lewis acidity of the Zn(II) than the Cd(II) center and to a higher accessibility of the metal centers in the former framework. We have also checked the heterogeneity and recyclability of these coordination polymers, showing that they remain active at least after four recyclings.

Syntheses, X-ray structures, gas adsorption and luminescent properties of three coordination polymers of Zn(ii) dicarboxylates mixed with a linear, neutral, and rigid N,N′-donor ligand

CrystEngComm ◽  
2014 ◽  
Vol 16 (22) ◽  
pp. 4783-4795 ◽  
Author(s):  
Biswajit Bhattacharya ◽  
Debraj Saha ◽  
Dilip Kumar Maity ◽  
Rajdip Dey ◽  
Debajyoti Ghoshal
Keyword(s):  
Coordination Polymers ◽  
Gas Adsorption ◽  
Luminescent Properties ◽  
Donor Ligand ◽  
X Ray
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