Effect of solvent/auxiliary ligand on the structures of Cd(II) coordination polymers based on ligand 5-(2-benzothiazolyl)isophthalic acid

Liu, Liangjuan; Ran, Yungen; Cao, Meng; Xin, Zhao; Mu, Yajuan

doi:10.1016/j.poly.2021.115103

Cited by 12 publications

(4 citation statements)

References 64 publications

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“…The carboxylate ligands have attracted increasing attention in the construction of CPs [29][30][31]. This is due to the fact that the carboxylate ligands have rich coordination modes [32] and are susceptible to the reaction conditions.…”

Section: Introductionmentioning

confidence: 99%

New Coordination Polymers of Selected Lanthanides with 1,2-Phenylenediacetate Linker: Structures, Thermal and Luminescence Properties

et al. 2021

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Solvothermal reactions of lanthanide (III) salts with 1,2-phenylenediacetic acid in N,N′-dimethylformamide (DMF) solvent lead to the formation of the metal complexes of the general formula Ln2(1,2-pda)3(DMF)2, where Ln(III) = Pr(1), Sm(2), Eu(3), Tb(4), Dy(5), and Er(6), 1,2-pda = [C6H4(CH2COO)2]2−. The compounds were characterized by elemental analysis, powder and single-crystal X-ray diffraction methods, thermal analysis methods (TG-DSC and TG-FTIR), infrared and luminescence spectroscopy. They exhibit structural similarity in the two groups (Pr, Sm, and Eu; Tb, Dy, and Er), which was reflected in their thermal behaviours and spectroscopic properties. Single-crystal X-ray diffraction studies reveal that Sm(2) and Eu(3) complexes form 2D coordination polymers with four crystallographically independent metal centers. Every second lanthanide ion is additionally coordinated by two DMF molecules. The 1,2-phenylenediacetate linker shows different denticity being: penta- and hexadentate while carboxylate groups exhibit bidentate-bridging, bidentate-chelating, and three-dentate bridging-chelating modes. The infrared spectra reflect divergence between these two groups of complexes. The complexes of lighter lanthanides contain in the structure coordinated DMF molecules, while in the structures of heavier complexes, DMF molecules appear in the inner and outer coordination sphere. Both carboxylate groups are deprotonated and engaged in the coordination of metal centers but in different ways in such groups of complexes. In the groups, the thermal decomposition of the isostructural complexes occurs similarly. Pyrolysis of complexes takes place with the formation of such gaseous products as DMF, carbon oxides, ortho-xylene, ethers, water, carboxylic acids, and esters. The complexes of Eu and Tb exhibit characteristic luminescence in the VIS region, while the erbium complex emits NIR wavelength.

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Section: Introductionmentioning

confidence: 99%

New Coordination Polymers of Selected Lanthanides with 1,2-Phenylenediacetate Linker: Structures, Thermal and Luminescence Properties

et al. 2021

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“…14 In this regard, synthetic inorganic and material chemists have attempted to synthesize new coordination polymers for different applications and thoroughly understand the underlying principles and rules responsible for the phenomenon. [15][16][17] It is now well-established that different factors such as the coordination sphere of the metal center, 18,19 the structural characteristics of the organic linker, 20,21 the metal-ligand ratio, 22,23 the counter-ion, 24,25 the solvent, 25,26 and the reaction conditions 27 play essential roles in the construction of coordination polymers with different dimensionality and topology.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure analysis and catalytic activity of two Ln-coordination polymers containing benzophenone-4,4′-dicarboxylate linker

et al. 2023

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“…The coordinated solvent molecules occupying the apical positions of the manganese polyhedra further altered the packing of these sheets and influenced the extent of antiferromagnetic interactions between the magnetic centers . Auxiliary ligands are commonly employed to impart alternate structural characteristics in CPs for target-specific applications. − They have affected crystallization pathways of CPs in various ways: (i) Neutral auxiliary ligand (e.g., 2,2′- bipy , phen ): generally blocked the coordinating site of the metal ion while ligands such as 4,4′- bipy pillared chains or sheets. ,− (ii) Ionic auxiliary ligands like lactic acid provided different coordination environments and thereby opened up new structural diversity. , An analysis of the structural landscape of the system Mn(II)-semirigid aromatic dicarboxylates with and without an auxiliary ligand revealed several interesting structural features (Table S1). Reaction of manganese(II) with an aromatic dicarboxylate in a suitable solvent is expected to precipitate a solid with the composition [Mn II R(COO) 2 ]. , However, Table S1 shows a range of compositions and structural diversities depending on the crystallization condition.…”

Section: Introductionmentioning

confidence: 99%

Crystallization and Magnetic Behavior of Manganese(II) 4,4′-Benzophenone Dicarboxylates and a Comparison of Its Structural Landscape with 2,4′-Benzophenone Dicarboxylate

Singh,

Yadav,

Balendra

et al. 2023

Crystal Growth & Design

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Exploration of the structural landscape of the system Mn(II) salt−4,4′-benzophenone dicarboxylic acid−N-donor based auxiliary ligand−solvent using high-throughput solvothermal reaction led to the isolation of seven new coordination polymers (CPs): [Mn(phen)(H 2 O)(4,4′-bpdc) 2 ] 1, [Mn 3 (2,2′-bipy) 2 (4,4′-bpdc) 3 ]•solvent (solvent = DMA, DMF, and DMSO for 2, 3, and 4, respectively), [Mn 3 (4,4′-dimethyl-2,2′-bipy) 2 (4,4′-bpdcA single-crystal X-ray diffraction study revealed that the presence of phen led to solid 1 that contained 1D chains made of Mn(II)-carboxylate dimers. The auxiliary ligand 2,2′-bipy and its 4,4′-dimethyl derivatives in a suitable solvent led to the growth of the solids 2 and 5 with a trimeric manganese cluster, where the building block, 1:1 manganese carboxylate got extended into 2D sheet and 3D network, respectively. The ligand 2,2′-bipy with 5,5′-dimethyl substitution led to 1D anionic chains of the composition, [Mn(5,5′-dimethyl-2,2′-bipy)(4,4′-bpdc) 2 ] 2− , stabilized by the cationic complex, {Mn(5,5′dimethyl-2,2′-bipy)(H 2 O) 4 } 2+ in 6. As expected, the auxiliary ligand, 4,4′-bipy acted as a bridging unit to pillar 1D chains of manganese-carboxylate forming a 2D sheet in 7. Retro analysis of the various structures reported here provided a mechanistic approach not only to rationalize the crystal packing of manganese(II) 4,4′-benzophenone dicarboxylates but also to enhance the understanding of crystallization of manganese(II) 2,4′-benzophenone dicarboxylates and other related solids. We have also discussed the antiferromagnetic behavior of 1, 2, 5, and 7 in the context of other structurally related manganese(II) dicarboxylates.

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Effect of solvent/auxiliary ligand on the structures of Cd(II) coordination polymers based on ligand 5-(2-benzothiazolyl)isophthalic acid

Cited by 12 publications

References 64 publications

New Coordination Polymers of Selected Lanthanides with 1,2-Phenylenediacetate Linker: Structures, Thermal and Luminescence Properties

New Coordination Polymers of Selected Lanthanides with 1,2-Phenylenediacetate Linker: Structures, Thermal and Luminescence Properties

Synthesis, structure analysis and catalytic activity of two Ln-coordination polymers containing benzophenone-4,4′-dicarboxylate linker

Crystallization and Magnetic Behavior of Manganese(II) 4,4′-Benzophenone Dicarboxylates and a Comparison of Its Structural Landscape with 2,4′-Benzophenone Dicarboxylate

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