Water molecule-driven reversible single-crystal to single-crystal transformation of a multi-metallic coordination polymer with controllable metal ion movement

2014 ◽  
Vol 50 (15) ◽  
pp. 1839 ◽  
Author(s):  
Zheng Niu ◽  
Jian-Gong Ma ◽  
Wei Shi ◽  
Peng Cheng
Keyword(s):  
Coordination Polymer ◽  
Water Molecule ◽  
Single Crystal ◽  
Metal Ion ◽  
Crystal Transformation ◽  
Ion Movement

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.

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour

2018 ◽  
Vol 47 (12) ◽  
pp. 4307-4314 ◽  
Author(s):  
Wen-Bin Chen ◽  
Yan-Cong Chen ◽  
Meng Yang ◽  
Ming-Liang Tong ◽  
Wen Dong
Keyword(s):  
Water Molecule ◽  
Single Crystal ◽  
Spin Crossover ◽  
Crystal Transformation

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour.

Single-crystal to single-crystal transformation from a 1-D chain-like structure to a 2-D coordination polymer on heating

CrystEngComm ◽  
2013 ◽  
Vol 15 (28) ◽  
pp. 5606 ◽  
Author(s):  
Xu-Jia Hong ◽  
Ming-Fang Wang ◽  
Hong-Guang Jin ◽  
Qing-Guang Zhan ◽  
Yi-Ting Liu ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Crystal Transformation

Single-Crystal-to-Single-Crystal Transformation of Hydrogen-Bonded Triple-Stranded Ladder Coordination Polymer via Photodimerization Reaction

2019 ◽  
Vol 58 (15) ◽  
pp. 10167-10173 ◽  
Author(s):  
Hasan Ali Al-Mohsin ◽  
Ammar AlMousa ◽  
Sulayman A. Oladepo ◽  
Almaz S. Jalilov ◽  
Mohammed Fettouhi ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Crystal Transformation ◽  
Hydrogen Bonded

Stepwise Synthesis of Diverse Isomer MOFs via Metal-Ion Metathesis in a Controlled Single-Crystal-to-Single-Crystal Transformation

2017 ◽  
Vol 17 (8) ◽  
pp. 4084-4089 ◽  
Author(s):  
Zhenyu Xiao ◽  
Yutong Wang ◽  
Shiyu Zhang ◽  
Weidong Fan ◽  
Xuelian Xin ◽  
...  
Keyword(s):  
Single Crystal ◽  
Metal Ion ◽  
Stepwise Synthesis ◽  
Crystal Transformation

Expanding uranyl dicyanoaurate coordination polymers into the second and third dimensions

2020 ◽  
Vol 98 (7) ◽  
pp. 365-372
Author(s):  
Matthew L. Brown ◽  
Daniel B. Leznoff
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Solvothermal Synthesis ◽  
Linear Chain ◽  
Three Dimensional ◽  
Synthesis And Characterization ◽  
Crystal Transformation ◽  
System A

The solvothermal synthesis and characterization of a three-dimensional, interpenetrated uranyl dicyanoaurate coordination polymer, K2(UO2)2(UO2)2(Au(CN)2)2(O)2(NO3)4, from UO2(NO3)2·6H2O and KAu(CN)2 is described. The structure contains a three-dimensional (3D) lattice of planar tetranuclear uranyl–oxo–nitrate clusters connected by dicyanoaurate linkers, with the rotation of the clusters providing the increased dimensionality. The material undergoes a reversible single-crystal to single-crystal transformation on exposure to water vapour, which is taken up in the channels of the 3D system. A second uranyl dicyanoaurate coordination polymer of the form [UO2(DMSO)3(H2O)(Au(CN)2)][Au(CN)2] was structurally characterized as a linear chain of dicyanoaurate units connected by gold–gold bonds with pendant uranyl–water–DMSO adducts that are hydrogen bonded into a two-dimensional sheet. Both materials exhibit emission arising from both the uranyl moiety and the gold(I) centre and represent the first multidimensional uranyl–dicyanoaurate coordination polymers.

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