Temperature-dependent supramolecular isomerism in three zinc coordination polymers with pamoic acid and 1,4-bis(imidazol-1-ylmethyl)-benzene

Wang, Suna; Peng, Yanqiang; Wei, Xilian; Zhang, Qingfu; Wang, Daqi; Dou, Jianmin; Li, Dacheng; Bai, Junfeng

doi:10.1039/c1ce05463e

Cited by 60 publications

(16 citation statements)

References 69 publications

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“…While the other end binds to the metal centers in a monodentate fashion with bond distances of 1.979(4) Å (Zn1−O2) and 1.972(5) Å (Zn2−O9) which are similar to other reported Zn II based frameworks with this linker . Also, the dicarboxylate adopts a trans conformation as observed in the reported architectures based on mbhna . The dihedral angle between the two naphthyl moieties is found to be 87.5°.…”

Section: Resultssupporting

confidence: 78%

Structural Diversity in Luminescent MOFs Containing a Bent Electron‐rich Dicarboxylate Linker and a Flexible Capping Ligand: Selective Detection of 4‐Nitroaniline in Water

Chakraborty

Das

Mandal

2019

Chemistry An Asian Journal

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Ac ombination of ab ent bis(naphthalene) and hydroxy-basedd icarboxylate linker and af lexible bis(tridentate)polypyridyl ligand has been employed to self-assemble with two different d 10 metal centers, Zn II and Cd II ,t of orm structurally diversifiedl uminescent metal-organic frameworks, [Zn 2 (tpbn)(mbhna) 2 (H 2 O) 2 ]·4 H 2 O·1.5DMF (1)a nd {[Cd 2 (tpbn)(mbhna) 2 ]·2DMF} n (2), respectively (where, tpbn = N,N',N'',N'''-tetrakis(pyridine-2-ylmethyl)butane-1,4-diamine and H 2 mbhna = 4,4'-methylene-bis[3-hydroxy-2-naphthalene carboxylic acid]). Both 1 and 2 are characterizeda nd analyzed by various analytical techniques includings ingle-crys-tal X-ray diffractometry.T heire xcellent emissive nature is studied in different solvents andf urtheru tilized to selectively detect aromatica mines,p articularly 4-nitroaniline in water with detection limits at sub-ppm level. The difference in sensing activity of 1 and 2 toward 4-NA is corroborated well with their structures. The mechanism of action has been established through Stern-Volmer plot, spectral overlap, timeresolved lifetime studies and HOMO-LUMO energy calculations. In addition, 1 and 2 are found to be recyclable and display good stability after sensing experiments.[a] Dr.Figure 4. Effect of solvents on the emissionspectra of 1 (a) and 2 (b).

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Section: Resultssupporting

confidence: 78%

Structural Diversity in Luminescent MOFs Containing a Bent Electron‐rich Dicarboxylate Linker and a Flexible Capping Ligand: Selective Detection of 4‐Nitroaniline in Water

Chakraborty

Das

Mandal

2019

Chemistry An Asian Journal

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“…The Zn−O distances range from 2.002(2) to 2.251(2) Å. These are close to other reported Zn(II) based compounds with mbhna as the linker [29,38–42] . In this case, the linker adopts a trans conformation which is also observed in the other reported architectures based on mbhna [40] .…”

Section: Description Of Structuressupporting

confidence: 86%

“…[29,[38][39][40][41][42] In this case, the linker adopts a trans conformation which is also observed in the other reported architectures based on mbhna. [40] The dihedral angle between two naphthyl moieties in mbhna is found to be 79.87°(Figure S6). On the other hand, the bpma ligand binds to the Zn center in a facial fashion (values of N alkyl À ZnÀ N py and N py À ZnÀ N py angles are 76.29°and 76.86°, and 113.05°, respectively).…”

Section: Description Of Structures [Zn(mbhna)(bpma)] N (1)supporting

confidence: 82%

Luminescent, Helical and Highly Stable Zn(II) and Cd(II) Coordination Polymers: Structural Diversity and Selective Sensing of 4‐Nitroaniline in Water

2021

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Utilizing a bent bis(naphthalene) and hydroxy-based dicarboxylate linker (mbhna) and two different tridentate polypyridyl ligands (bpma and bpta), four new coordination polymers (CPs) of Zn(II) and Cd(II) namely, [Zn(mbhna 4), are reported. Based on their solidstate molecular structures determined by single-crystal X-ray diffractometry, all are found to be helical 1D CP; interestingly, 4 crystallizes in a chiral space group, showcasing the formation of a chiral CP from achiral components. For the presence of naphthalene moieties in mbhna, their excellent emissive nature is studied in different solvents and further utilized to selectively detect aromatic amines, particularly 4-nitroaniline in water with detection limits at the ppm level. Utilizing the Stern-Volmer plots, spectral overlap, and competitive test, their mechanism of action has been established. Furthermore, these are recyclable with good stability after sensing experiments.

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“…Though tremendous progress has been made in the design and fabrication of CPs, it is still a challenge to synthesize various architectures with desired topologies and properties. The self‐assembly process of CPs is influenced by many factors, such as central metal atoms, solvents, pH, temperature, and organic ligands . Among these parameters, the selection of suitable metal ions with appropriate geometry and the bridging ligands is crucial for the rational design of functional CPs with high photocatalytic activities , …”

Section: Introductionmentioning

confidence: 99%

Effect of the Spacer Chain Length of Organic Dicarboxylic Acid on the Supramolecular Assembly of Two Ternary Zinc (II) Coordination Polymers Derived from Mixed Ligands

Nie

Song

Liu

et al. 2019

Zeitschrift anorg allge chemie

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Two new Zn II coordination polymers (CPs), [Zn 2 (SA) 2 (L) 2 ] n (1) and [Zn(AA)(L)] n (2) [L = 1,6-bis(benzimidazol-1-yl)hexane, H 2 SA = succinic acid, H 2 AA = adipic acid], were synthesized via hydrothermal method and characterized by elemental analysis, infrared spectroscopy, and single-crystal X-ray diffraction. CP 1 possesses a sql network, which is further extended into a 3D supramolecular skeleton by non-classical C-H···O hydrogen bonding interactions. CP 2

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Temperature-dependent supramolecular isomerism in three zinc coordination polymers with pamoic acid and 1,4-bis(imidazol-1-ylmethyl)-benzene

Cited by 60 publications

References 69 publications

Structural Diversity in Luminescent MOFs Containing a Bent Electron‐rich Dicarboxylate Linker and a Flexible Capping Ligand: Selective Detection of 4‐Nitroaniline in Water

Structural Diversity in Luminescent MOFs Containing a Bent Electron‐rich Dicarboxylate Linker and a Flexible Capping Ligand: Selective Detection of 4‐Nitroaniline in Water

Luminescent, Helical and Highly Stable Zn(II) and Cd(II) Coordination Polymers: Structural Diversity and Selective Sensing of 4‐Nitroaniline in Water

Effect of the Spacer Chain Length of Organic Dicarboxylic Acid on the Supramolecular Assembly of Two Ternary Zinc (II) Coordination Polymers Derived from Mixed Ligands

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