Supramolecular cooperative interaction-induced assembly of phosphotungstate polyanions and sulfur-containing pyridine-based cations

CrystEngComm ◽  
2018 ◽  
Vol 20 (11) ◽  
pp. 1588-1596 ◽  
Author(s):  
Xuerui Tian ◽  
Xing Xin ◽  
Yuanzhe Gao ◽  
Zhangang Han
Keyword(s):  
Hydrogen Bonding ◽  
Cooperative Interaction ◽  
Supramolecular Interactions ◽  
Sulfur Containing

Three crystals were assembled by means of multiple weak intermolecular cooperative supramolecular interactions of hydrogen bonding, S⋯O, C–H⋯π, and polyanion–π.

Supramolecular Interactions in Aromatic Structures for Non-Optical and Optical Chemosensors of Explosive Chemicals

2021 ◽  
Vol 317 ◽  
pp. 202-207
Author(s):  
Juan Matmin ◽  
Nur Fatiha Ghazalli ◽  
Fazira Ilyana Abdul Razak ◽  
Hendrik O. Lintang ◽  
Mohamad Azani Jalani
Keyword(s):  
Hydrogen Bonding ◽  
High Performance ◽  
Molecular Design ◽  
Optical Sensing ◽  
Green Emission ◽  
Supramolecular Interactions ◽  
Side Chain ◽  
Optical Chemosensors ◽  
Random Aggregate ◽  
Metal Metal

The scientific investigation based on the molecular design of aromatic compounds for high-performance chemosensor is challenging. This is because their multiplex interactions at the molecular level should be precisely determined before the desired compounds can be successfully used as sensing materials. Herein, we report on the molecular design of chemosensors based on aromatic structures of benzene as the organic motif of benzene-1,3,5-tricarboxamides (BTA), as well as the benzene pyrazole complexes (BPz) side chain, respectively. In the case of BTA, the aromatic benzene acts as the centre to allow the formation of π–π stacking for one-dimensional materials having rod-like arrangements that are stabilized by threefold hydrogen bonding. We found that when nitrate was applied, the rod-like BTA spontaneously formed into a random aggregate due to the deformation of its hydrogen bonding to form inactive nitroso groups for non-optical sensing capability. For the optical chemosensor, the aromatic benzene is decorated as a side-chain of BPz to ensure that cage-shaped molecules make maximum use of their centre providing metal-metal interactions for fluorescence-based sensing materials. In particular, when exposed to benzene, Cu-BPz displayed a blue-shift of its original emission band from 616 to 572 nm (Δ = 44 nm) and emitted bright orange to green emission colours. We also observe a different mode of fluorescence-based sensing materials for Au-BPz, which shows a particular quenching mechanism resulting in 81% loss of its original intensity on benzene exposure to give less red-orange emission (λ = 612 nm). The BTA and BPz synthesized are promising high-performance supramolecular chemosensors based on the non-optical and optical sensing capability of a particular interest analyte.

Adsorption behaviour of a CdII–triazole MOF for butan-2-one in a single-crystal-to-single-crystal (SCSC) fashion: the role of hydrogen bonding and C—H...π interactions

2019 ◽  
Vol 75 (6) ◽  
pp. 806-811
Author(s):  
Jia Wang ◽  
Tianchao You ◽  
Teng Wang ◽  
Qikui Liu ◽  
Jianping Ma ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Single Crystal ◽  
Specific Binding ◽  
Supramolecular Interactions ◽  
Adsorption Behaviour ◽  
X Ray Diffraction ◽  
Guest Molecules ◽  
X Ray ◽  
Π Interactions ◽  
H Nmr

The adsorption behaviour of the CdII–MOF {[Cd(L)2(ClO4)2]·H2O (1), where L is 4-amino-3,5-bis[3-(pyridin-4-yl)phenyl]-1,2,4-triazole, for butan-2-one was investigated in a single-crystal-to-single-crystal (SCSC) fashion. A new host–guest system that encapsulated butan-2-one molecules, namely poly[[bis{μ3-4-amino-3,5-bis[3-(pyridin-4-yl)phenyl]-1,2,4-triazole}cadmium(II)] bis(perchlorate) butanone sesquisolvate], {[Cd(C24H18N6)2](ClO4)2·1.5C4H8O} n , denoted C4H8O@Cd-MOF (2), was obtained via an SCSC transformation. MOF 2 crystallizes in the tetragonal space group P43212. The specific binding sites for butan-2-one in the host were determined by single-crystal X-ray diffraction studies. N—H...O and C—H...O hydrogen-bonding interactions and C—H...π interactions between the framework, ClO4 − anions and guest molecules co-operatively bind 1.5 butan-2-one molecules within the channels. The adsorption behaviour was further evidenced by 1H NMR, IR, TGA and powder X-ray diffraction experiments, which are consistent with the single-crystal X-ray analysis. A 1H NMR experiment demonstrates that the supramolecular interactions between the framework, ClO4 − anions and guest molecules in MOF 2 lead to a high butan-2-one uptake in the channel.

scholarly journals Supramolecular interactions between polylactide and model cyclosiloxanes with hydrogen bonding-capable functional groups

2020 ◽  
Vol 14 (2) ◽  
pp. 134-153 ◽  
Author(s):  
A. S. Herc ◽  
M. Wlodarska ◽  
M. Nowacka ◽  
J. Bojda ◽  
W. Szymanski ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Functional Groups ◽  
Supramolecular Interactions

σ-Hole halogen bonding interactions in a mixed valence cobalt(iii/ii) complex and anti-electrostatic hydrogen bonding interaction in a cobalt(iii) complex: a theoretical insight

CrystEngComm ◽  
2018 ◽  
Vol 20 (45) ◽  
pp. 7281-7292 ◽  
Author(s):  
Kousik Ghosh ◽  
Klaus Harms ◽  
Antonio Bauzá ◽  
Antonio Frontera ◽  
Shouvik Chattopadhyay
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Dft Calculations ◽  
Mixed Valence ◽  
Halogen Bonding ◽  
Supramolecular Interactions ◽  
Hydrogen Bonding Interaction ◽  
Bonding Interaction ◽  
Solid State Structures ◽  
Theoretical Insight

Supramolecular interactions in the solid state structures of a mixed valence cobalt(ii/iii) complex and a cobalt(iii) complex have been studied using DFT calculations.

scholarly journals Electronic and Hydrogen Bonding Effects on the Chain-Breaking Activity of Sulfur-Containing Phenolic Antioxidants

2006 ◽  
Vol 71 (17) ◽  
pp. 6325-6332 ◽  
Author(s):  
Riccardo Amorati ◽  
Maria Grazia Fumo ◽  
Stefano Menichetti ◽  
Veronica Mugnaini ◽  
Gian Franco Pedulli
Keyword(s):  
Hydrogen Bonding ◽  
Phenolic Antioxidants ◽  
Chain Breaking ◽  
Sulfur Containing

scholarly journals Single-crystal X-ray diffraction study of a host–guest system comprising monofunctionalized-hydroxy pillar[5]arene and 1-octanamine

2018 ◽  
Vol 74 (8) ◽  
pp. 1117-1120
Author(s):  
Talal F. Al-Azemi ◽  
Mickey Vinodh ◽  
Abdirahman A. Mohamod ◽  
Fatemeh H. Alipour
Keyword(s):  
Hydrogen Bonding ◽  
Alkyl Chain ◽  
Supramolecular Interactions ◽  
Asymmetric Unit ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Guest Species ◽  
Guest System ◽  
Macrocycle Cavity

Co-crystallization of a monofunctionalized hydroxy pillar[5]arene with 1-octanamine resulted in the formation of an inclusion complex where the alkyl chain is threaded in the macrocycle cavity, namely 1,2,3,4-(1,4-dimethoxy)-5-(1-hydroxy-4-methoxy)-pillar[5]arene–1-octanamine–water (1/1/1), C44H48O10·C8H19N·H2O. The guest compound is stabilized inside the cavity by hydrogen-bonding and C—H...π interactions. The water molecule in the asymmetric unit mediates the formation of a supramolecular dimer by hydrogen-bonding interactions. These functionalized-pillararene hosts expand the possibility of exploring more supramolecular interactions with various guest species.

scholarly journals Supramolecular block copolymer photovoltaics through ureido-pyrimidinone hydrogen bonding interactions

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 51562-51568 ◽  
Author(s):  
Yen-Hao Lin ◽  
Wanyi Nie ◽  
Hsinhan Tsai ◽  
Xiaoyi Li ◽  
Gautam Gupta ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Charge Transport ◽  
Polymer Blend ◽  
Charge Recombination ◽  
Supramolecular Interactions ◽  
Hydrogen Bonding Interactions ◽  
Bulk Charge

Hydrogen bonding interactions are incorporated into a model polymer-blend OPV system through self-associative endgroups. Supramolecular interactions are shown to increase the resistance for both charge recombination and bulk charge transport.

Vanadium complexes with side chain functionalized N-salicylidene hydrazides: Hydrogen-bonding relays as structural directive for supramolecular interactions

2014 ◽  
Vol 420 ◽  
pp. 166-176 ◽  
Author(s):  
Axel Buchholz ◽  
Simona Nica ◽  
Robert Debel ◽  
Annika Fenn ◽  
Hergen Breitzke ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Supramolecular Interactions ◽  
Side Chain ◽  
Vanadium Complexes

In-MOFs based on amide functionalised flexible linkers

2017 ◽  
Vol 201 ◽  
pp. 327-335 ◽  
Author(s):  
J. Haddad ◽  
G. F. S. Whitehead ◽  
A. P. Katsoulidis ◽  
M. J. Rosseinsky
Keyword(s):  
Hydrogen Bonding ◽  
Functional Group ◽  
Close Packing ◽  
Supramolecular Interactions ◽  
Indium Hydroxide ◽  
Group Orientation ◽  
Accessible Volume ◽  
Succinamic Acid ◽  
Cylindrical Pores ◽  
Metal Organic

Two new amide functionalised metal–organic frameworks, In(OH)CSA and In(OH)PDG, were synthesized using two flexible linkers, N-(4-carboxyphenyl)succinamic acid (CSA) and N,N′-(1,4-phenylenedicarbonyl)diglycine (PDG), respectively. Both structures consist of corner-sharing {InO4(OH)2} octahedra in the form of trans indium hydroxide chains, which are interconnected by the dicarboxylate linkers to form stacked 2-dimensional layers. The different symmetries and configurations of the flexible and rigid features on the linkers results in different supramolecular interactions dominating between linkers, resulting in different shaped pores and functional group orientation. In(OH)CSA lacks hydrogen bonding between linkers, which results in close packing between the layers and very small solvent accessible pores running perpendicular to the plane of the layers. In(OH)PDG exhibits strong intra- and interlayer hydrogen bonding, which prevents the layers from close packing and results in larger cylindrical pores running parallel to the indium hydroxide chains, producing a total accessible volume of 25% of the unit cell volume.

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