Chapter 2. Designing Soft Supramolecular Materials Using Intermolecular Interactions

Dastidar, Parthasarathi; Roy, Rajdip; Parveen, Rumana; Ganguly, Sanjib; Majumder, Joydeb; Paul, Milova

doi:10.1039/9781788010276-00037

Cited by 9 publications

(5 citation statements)

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“…Puddephatt et al showed that the amide•••amide interactions enabled the formation of molecular triangles in a platinum complex of bis-pyridyl amides and a 2,2bipyridine derivative with an encapsulated triflate anion [20]. These results demonstrated the significance of combining coordination and hydrogen-bonding groups to generate SCMs, which resulted in a myriad of pyridyl-amide based SCMs as functional supramolecular materials [21][22][23] with intriguing applications in biological processes [23,24] and as catalysts [25], metallogels [26], luminescent materials [27], and sensors [28].…”

Section: Introductionmentioning

confidence: 99%

“…Although metal-ligand coordination and hydrogen bonding are the key driving forces in SCMs, various parameters, such as solvents, temperature, and anions, also play an essential role in generating the final supramolecular architecture [21][22][23][29][30][31][32][33][34][35][36][37][38][39][40][41]. Dastidar et al reported the significance of hydrogen bonding moieties in recognizing hydrogen-bond-capable guest molecules, which was evident from the encapsulation of a (H 2 O) 14 water cluster in pyridyl amide-based coordination polymers [34].…”

Section: Introductionmentioning

confidence: 99%

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Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds

et al. 2021

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The combination of strong coordination bonds and hydrogen bonding interactions were used to generate a series of supramolecular coordination materials (SCMs), which was achieved by reacting a bis-pyridyl amide ligand, namely N-(4-pyridyl)nicotinamide (4PNA) with copper(II), zinc(II), and cadmium(II) benzoates. The SCMs were structurally characterized using X-ray diffraction and the key intermolecular interactions were identified via Hirshfeld surface analysis. The role of solvent molecules on the supramolecular architecture was analyzed by synthesizing the SCMs in different solvents/solvent mixtures. A solvent-mediated solid-state structural transformation was observed in copper(II) SCMs and we were able to isolate the intermediate form of the crystal-to-crystal transformation process. The luminescence experiments revealed that complexation enhanced the fluorescence properties of 4PNA in the zinc(II) and cadmium(II) SCMs, but a reverse phenomenon was observed in the copper(II) SCMs. This work demonstrated the tuning of supramolecular assembly in coordination compounds as a function of solvents for generating SCMs with diverse properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds

et al. 2021

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“…However, there are some general strategies to obtain a more rational design route toward new metallogels, which are based on either a molecular engineering approach or on structure–property correlations. 35…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the logical design of new functional gels is difficult because of the lack of information about the molecular self-assembly process, many of the systems reported so far being examples of accidental discoveries. However, there are some general strategies to obtain a more rational design route toward new metallogels, which are based on either a molecular engineering approach or on structure–property correlations …”

Section: Introductionmentioning

confidence: 99%

5-(1H-1,2,3-Triazol-5-yl)isophthalic Acid: A Versatile Ligand for the Synthesis of New Supramolecular Metallogels

et al. 2019

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The gelation ability of 5-(1 H -1,2,3-triazol-5-yl)isophthalic acid ( click-TIA ) in the presence of different metal acetates has been studied in different solvents and ligand/metal ratios. This manuscript is focused on the metallogel obtained from the combination of click-TIA and copper(II) acetate, which has been used as a model system in terms of characterization and gelation studies. Sonication treatment of the initial mixture of compounds and the nature of the counter anion were found to be critical factors for the supramolecular assembly of the metal/ click-TIA complexes and, hence, for the formation of stable and homogeneous metallogels. The gel materials have been characterized with a variety of techniques including infrared, rheology, UV–vis spectroscopy, powder X-ray diffraction, and scanning electron microscopy.

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“…Generally, these supramolecular soft materials display responsive behavior to various external stimuli, such as temperature, light, pH, ions, mechanical stress, ultrasound, and enzymes, which, when harnessed effectively, can produce functional materials for applications such as drug carriers, enzyme immobilization, sensors, soft optical devices, dye-sensitized solar cells, templating components for inorganic or organic nanostructures, cell scaffolds, and wound healing [6,7,8,9,10]. Recently, a wide variety of small molecules and polymers of natural and petrochemical origin were utilized for the generation of supramolecular soft-materials [11,12]. Among the reported biocompatible natural raw materials, carbohydrates, also called a chiral pool, have become an obvious choice to construct soft materials due to its eco-friendliness, cost effectiveness, biodegradability, and structural diversity.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Gel Formation Based on Glycolipids Derived from Renewable Resources

Lalitha

Kandasamy

Prasad

et al. 2017

Gels

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The potential applications of self-assembled supramolecular gels based on natural molecules encouraged the researchers to develop a versatile synthetic method for their structural analogues. Herein, we report a facile synthesis of glycolipid from renewable resources, cashew nut shell liquid,d and d-glucose in good yield. Gelation behavior of these glycolipids were studied in a wide range of solvents and oils. To our delight, compound 5b formed a hydrogel with Critical gelator concentration (CGC) of 0.29% w/v. Morphological analysis of the hydrogel depicts the formation of twisted fibers with an entangled network. Formation of a twisted fibrous structure was further identified by CD spectral studies with respect to temperature. The molecular self-assembly assisted by hydrogen bonding, hydrophobic, and π–π stacking interactions were identified by X-ray diffraction (XRD) and FTIR studies. Rheological analysis depicted the mechanical strength and stability of the hydrogel, which is crucial in predicting the practical applications of supramolecular soft materials.

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Chapter 2. Designing Soft Supramolecular Materials Using Intermolecular Interactions

Cited by 9 publications

References 0 publications

Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds

Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds

5-(1H-1,2,3-Triazol-5-yl)isophthalic Acid: A Versatile Ligand for the Synthesis of New Supramolecular Metallogels

Supramolecular Gel Formation Based on Glycolipids Derived from Renewable Resources

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