A supramolecular assembly of side-by-side polyimidazole tripod coils stabilized by π–π stacking and unique boric acid templated hydrogen bonding interactions

2005 ◽  
pp. 2223 ◽  
Author(s):  
Lionel E. Cheruzel ◽  
Mark S. Mashuta ◽  
Robert M. Buchanan
Keyword(s):  
Hydrogen Bonding ◽  
Boric Acid ◽  
Supramolecular Assembly ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking

A Healable Supramolecular Polymer Blend Based on Aromatic π−π Stacking and Hydrogen-Bonding Interactions

2010 ◽  
Vol 132 (34) ◽  
pp. 12051-12058 ◽  
Author(s):  
Stefano Burattini ◽  
Barnaby W. Greenland ◽  
Daniel Hermida Merino ◽  
Wengui Weng ◽  
Jonathan Seppala ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Polymer Blend ◽  
Supramolecular Polymer ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking

Bioinspired catalysis and bromoperoxidase like activity of a multistimuli-responsive supramolecular metallogel: supramolecular assembly triggered by pi–pi stacking and hydrogen bonding interactions

2020 ◽  
Vol 44 (14) ◽  
pp. 5410-5418 ◽  
Author(s):  
Sunshine Dominic Kurbah ◽  
Ram A. Lal
Keyword(s):  
Hydrogen Bonding ◽  
Supramolecular Assembly ◽  
Synthesis And Characterization ◽  
Pi Stacking ◽  
Hydrogen Bonding Interactions ◽  
Bromination Reaction ◽  
Oxidative Bromination ◽  
Self Assembled

We report the synthesis and characterization of a new self-assembled VO2-L metallogel. Multi-responsive properties of the gel were also studied and can be used for sensing OH− anions. Bromoperoxidase-like activity of VO2-L metallogel for oxidative bromination reaction was also reported.

scholarly journals The role of π–π stacking and hydrogen-bonding interactions in the assembly of a series of isostructural group IIB coordination compounds

2019 ◽  
Vol 75 (2) ◽  
pp. 178-188 ◽  
Author(s):  
Taraneh Hajiashrafi ◽  
Roghayeh Zekriazadeh ◽  
Keith J. Flanagan ◽  
Farnoush Kia ◽  
Antonio Bauzá ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Coordination Compounds ◽  
Spectroscopic Techniques ◽  
Stacking Interactions ◽  
X Ray Crystallography ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking ◽  
Research Domain

The supramolecular chemistry of coordination compounds has become an important research domain of modern inorganic chemistry. Herein, six isostructural group IIB coordination compounds containing a 2-{[(2-methoxyphenyl)imino]methyl}phenol ligand, namely dichloridobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)zinc(II), [ZnCl2(C28H26N2O4)], 1, diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)zinc(II), [ZnI2(C28H26N2O4)], 2, dibromidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)cadmium(II), [CdBr2(C28H26N2O4)], 3, diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)cadmium(II), [CdI2(C28H26N2O4)], 4, dichloridobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)mercury(II), [HgCl2(C28H26N2O4)], 5, and diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)mercury(II), [HgI2(C28H26N2O4)], 6, were synthesized and characterized by X-ray crystallography and spectroscopic techniques. All six compounds exhibit an infinite one-dimensional ladder in the solid state governed by the formation of hydrogen-bonding and π–π stacking interactions. The crystal structures of these compounds were studied using geometrical and Hirshfeld surface analyses. They have also been studied using M06-2X/def2-TZVP calculations and Bader's theory of `atoms in molecules'. The energies associated with the interactions, including the contribution of the different forces, have been evaluated. In general, the π–π stacking interactions are stronger than those reported for conventional π–π complexes, which is attributed to the influence of the metal coordination, which is stronger for Zn than either Cd or Hg. The results reported herein might be useful for understanding the solid-state architecture of metal-containing materials that contain M II X 2 subunits and aromatic organic ligands.

scholarly journals {N 1-[2-(Butylselanyl)benzyl]-N 2,N 2-dimethylethane-1,2-diamine}dichloridomercury(II)

2018 ◽  
Vol 74 (8) ◽  
pp. 1151-1154
Author(s):  
Pushpendra Singh ◽  
Harkesh B. Singh ◽  
Ray J. Butcher
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Self Assembly ◽  
Title Compound ◽  
Supramolecular Assembly ◽  
Molecular Geometry ◽  
The Self ◽  
Intermolecular Hydrogen Bonding ◽  
Hydrogen Bonding Interactions ◽  
Donor Acceptor

In the title compound, [HgCl2(C16H28N2Se)], the primary geometry around the Se and Hg atoms is distorted trigonal–pyramidal and distorted square-pyramidal, respectively. The distortion of the molecular geometry in the complex is caused by the steric demands of the ligands attached to the Se atom. The Hg atom is coordinated through two chloride anions, an N atom and an Se atom, making up an unusual HgNSeCl2 coordination sphere with an additional long Hg...N interaction. Intermolecular C—H...Cl interactions are the only identified intermolecular hydrogen-bonding interactions that seem to be responsible for the self assembly. These relatively weak C—H...Cl hydrogen bonds possess the required linearity and donor–acceptor distances. They act as molecular associative forces that result in a supramolecular assembly along the b-axis direction in the solid state of the title compound.

scholarly journals 3-(2-Pyridyl)-5-(4-pyridyl)-4-(p-tolyl)-1H-1,2,4-triazole

2009 ◽  
Vol 65 (6) ◽  
pp. o1225-o1225
Author(s):  
Lu-Tong Yuan ◽  
Hai Zhang ◽  
Zuo-Xiang Wang ◽  
Zhi-Rong Qu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Triazole Ring ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking ◽  
Centroid Distance

In the molecule of the title compound, C19H15N5, the dihedral angles formed by the plane of the triazole ring with those of the 2-pyridyl, 4-pyridyl andp-tolyl rings are 28.12 (10), 34.62 (10) and 71.43 (9)°, respectively. The crystal structure is consolidated by C—H...π hydrogen-bonding interactions and by π–π stacking interactions, with a centroid–centroid distance of 3.794 (4) Å.

Emergent Supramolecular Assembly Properties of Recognition-Encoded Oligoesters

2019 ◽  
Author(s):  
Filip Szczypiński ◽  
Luca Gabrielli ◽  
Christopher Hunter
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Supramolecular Assembly ◽  
Functional Materials ◽  
Intramolecular Hydrogen Bonding ◽  
Dimensional Structure ◽  
Stem Loop ◽  
Recognition Sites ◽  
Hydrogen Bonding Interactions ◽  
Intramolecular Hydrogen

The sequences of oligomeric molecules equipped with interacting side-chains encode the three-dimensional structure, the supramolecular assembly properties, and ultimately function. In an attempt to replicate the duplex forming properties of nucleic acids, an oligoester containing an alternating sequence of hydrogen bonding donor (<b>D</b>) and acceptor (<b>A</b>) residues was synthesised. Characterisation of assembly properties of the <b>ADAD</b> oligomer revealed a supramolecular architecture that resembles the kissing stem-loops motif found in folded RNA. NMR dilution and melting experiments in chloroform and 1,1,2,2-tetrachloroethane show that intramolecular hydrogen bonding interactions between the terminal phenol and phosphine oxide recognition sites in the <b>ADAD</b> 4-mer leads to 1,4-folding. This folded stem-loop structure can be denatured to give the single strand by heating. At higher concentrations or lower temperatures, the stem-loop dimerises via intermolecular hydrogen bonding interactions between the two inner recognition sites, leading to a kissing stem-loops structure. The results suggest a rich supramolecular chemistry for these recognition-encoded oligoesters and lay strong foundations for the future development of new functional materials based on synthetic information molecules.

Exploiting hydrogen bonding interactions to probe smaller linear and cyclic diamines binding to G-quadruplexes: a DFT and molecular dynamics study

2017 ◽  
Vol 19 (18) ◽  
pp. 11474-11484 ◽  
Author(s):  
Mrinal Kanti Si ◽  
Anik Sen ◽  
Bishwajit Ganguly
Keyword(s):  
Molecular Dynamics ◽  
Hydrogen Bonding ◽  
Binding Motif ◽  
Stacking Interactions ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking ◽  
G Quadruplex

This report reveals that hydrogen bonding interactions between the ligand and G-quadruplex can initiate an alternative binding motif to typical π-stacking interactions.

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