Metal-directed assembly of coordination polymers with the versatile ligand 2-(1H-benzotriazol-1-yl) acetic acid: from discrete structures to two-dimensional networks

Wang, Jinhua; Tang, Gui-Mei; Wang, Yongtao; Qin, Tingxiao; Ng, Seik Weng

doi:10.1039/c3ce42099j

Cited by 44 publications

(12 citation statements)

References 266 publications

(21 reference statements)

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“…As shown in Fig. 4, the first mass loss of 10.72% occurs in the range 365-466 K, which corresponds to the release of coordinated water molecules (calculated as 10.61% for two water molecules per formula unit) and indicates that there exist strong hydrogen bonds between water molecules and carboxylate groups (Wang et al, 2014;Yang et al, 2017). This process takes place with one endothermic peak observed in the differential scanning calorimetry (DSC) curve at 442 K. The TG curve presents a plateau until approximately 496 K. The solid then continues to lose mass from 497 to 919 K, corresponding to the decomposition of H 2 Phbidc 4À ligands.…”

Section: Thermal Stabilitymentioning

confidence: 95%

A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

Liu

Cheng

et al. 2018

Acta Crystallogr C

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Imidazole-4,5-dicarboxylic acid (H 3 IDC) and its derivatives are widely used in the preparation of new coordination polymers owing to their versatile bridging coordination modes and potential hydrogen-bonding donors and acceptors. A new one-dimensional coordination polymer, namely catena-poly[[diaquacadmium(II)]-3 -2,2 0 -(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylato)], In the polymer, one type of Cd ion (Cd1) is six-coordinated by two N atoms and two O atoms from one H 2 Phbidc 4À ligand and by two O atoms from two water molecules, forming a significantly distorted octahedral CdN 2 O 4 coordination geometry. In contrast, the other type of Cd ion (Cd2) is six-coordinated by two N atoms and two O atoms from two symmetry-related H 2 Phbidc 4À ligands and by two O atoms from two symmetry-related water molecules, leading to a more regular octahedral coordination geometry. The Cd1 and Cd2 ions are linked by H 2 Phbidc 4À ligands into a one-dimensional chain which runs parallel to the b axis. In the crystal, the one-dimensional chains are connected through hydrogen bonds, generating a two-dimensional layered structure parallel to the ab plane. Adjacent layers are further linked by hydrogen bonds, forming a threedimensional structure in the solid state.

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Section: Thermal Stabilitymentioning

confidence: 95%

A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

Liu

Cheng

et al. 2018

Acta Crystallogr C

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“…As shown in Fig. 6, the TG curve suggests that the first weight loss of 7.69% from 325 to 457 K corresponds to the loss of lattice and coordinated water molecules (calculated as 7.95% for three water molecules per formula unit), indicating that there exist strong hydrogen bonds involving water molecules, carboxylate groups and benzotriazole groups (Wang et al, 2014;Yang et al, 2016) . The framework can keep stability up to about 513 K. The residual framework starts to decompose above 513 K, with complicated weight losses and does not stop until 804 K. Finally, a plateau occurs from 804 to 973 K. The observed final mass remnant of 11.56% likely representing deposition of CuO is in agreement with the calculated value of 11.70%.…”

Section: Thermogravimetric (Tg) and Differential Scanning Calorimetrymentioning

confidence: 97%

A new one-dimensional Cu^IIcomplex with a three-dimensional supramolecular architecture incorporating benzene-1,3-dicarboxylate and 1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole

Huang

2017

Acta Crystallogr C

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Subtle modifications of N-donor ligands can result in complexes with very different compositions and architectures. In the complex catena-poly[[bis{1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole-κN}copper(II)]-μ-benzene-1,3-dicarboxylato-κO,O:O], {[Cu(CHO)(CHN)(HO)]·2HO}, each Cu ion is six-coordinated by two N atoms from two crystallographically independent 1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole (bmi) ligands, by three O atoms from two symmetry-related benzene-1,3-dicarboxylate (bdic) ligands and by one water molecule, leading to a distorted CuNO octahedral coordination environment. The Cu ions are connected by bridging bdic anions to generate a one-dimensional chain. The bmi ligands coordinate to the Cu ions in monodentate modes and are pendant on opposite sides of the main chain. In the crystal, the chains are linked by O-H...O and O-H...N hydrogen bonds, as well as by π-π interactions, into a three-dimensional network. A thermogravimetric analysis was carried out and the fluorescence behaviour of the complex was also investigated.

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“…As shown in Fig. 5, the TG curve of (I) shows that the first mass loss of 9.89% occurs between 374 and 470 K, and corresponds to the release of uncoordinated and coordinated water molecules (calculated as 10.02% for four water molecules per formula unit), indicating that there exist strong hydrogen bonds involving water molecules, carboxylate groups and benzimidazole groups (Wang et al, 2014;Yang et al, 2016). A continuous mass loss from 508 to 784 K corresponds to the gradual decomposition of the bdic 2À and immb ligands.…”

Section: Figurementioning

confidence: 98%

Syntheses, structures and characterization of isomorphous Co^II and Ni^II coordination polymers based on 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole and benzene-1,4-dicarboxylate

2017

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Careful choice of the organic ligands is one of the most important parameters in the rational design and synthesis of coordination polymers. Aromatic polycarboxylates have been widely used in the preparation of metal-organic polymers since they can utilize various coordination modes to form diverse structures and can act as hydrogen-bond acceptors and donors in the assembly of supramolecular structures. Nitrogen-heterocyclic organic compounds have also been used extensively as ligands for the construction of polymers with interesting structures. In the polymers catena-poly[[[diaquabis{2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κN}cobalt(II)]-μ-benzene-1,4-dicarboxylato-κO:O] dihydrate], {[Co(CHO)(CHN)(HO)]·2HO}, (I), and catena-poly[[[diaquabis{2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κN}nickel(II)]-μ-benzene-1,4-dicarboxylato-κO:O] dihydrate], {[Ni(CHO)(CHN)(HO)]·2HO}, (II), the Co or Ni ion lies on an inversion centre and exhibits a slightly distorted octahedral coordination geometry, coordinated by two N atoms from two imidazole rings and four O atoms from two monodentate carboxylate groups and two water molecules. The dicarboxylate ligands bridge metal ions forming a polymeric chain. The 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole ligands coordinate to the Co or Ni centres in monodentate modes through an imidazole N atom and are pendant on opposite sides of the main chain. The two structures are isomorphous. In the crystal, the one-dimensional chains are further connected through O-H...O, O-H...N and N-H...O hydrogen bonds, leading to a three-dimensional supramolecular architecture. In addition, the IR spectroscopic properties, PXRD patterns, thermogravimetric behaviours and fluorescence properties of both polymers have been investigated.

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Metal-directed assembly of coordination polymers with the versatile ligand 2-(1H-benzotriazol-1-yl) acetic acid: from discrete structures to two-dimensional networks

Cited by 44 publications

References 266 publications

A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional Cu^IIcomplex with a three-dimensional supramolecular architecture incorporating benzene-1,3-dicarboxylate and 1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole

Syntheses, structures and characterization of isomorphous Co^II and Ni^II coordination polymers based on 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole and benzene-1,4-dicarboxylate

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Metal-directed assembly of coordination polymers with the versatile ligand 2-(1H-benzotriazol-1-yl) acetic acid: from discrete structures to two-dimensional networks

Cited by 44 publications

References 266 publications

A new one-dimensional CdII coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional CdII coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional CuIIcomplex with a three-dimensional supramolecular architecture incorporating benzene-1,3-dicarboxylate and 1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole

Syntheses, structures and characterization of isomorphous CoII and NiII coordination polymers based on 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole and benzene-1,4-dicarboxylate

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A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional Cd^II coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

A new one-dimensional Cu^IIcomplex with a three-dimensional supramolecular architecture incorporating benzene-1,3-dicarboxylate and 1-[(1H-benzotriazol-1-yl)methyl]-1H-imidazole

Syntheses, structures and characterization of isomorphous Co^II and Ni^II coordination polymers based on 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole and benzene-1,4-dicarboxylate