Benzopyrrole derivatives as effective anion receptors in highly competitive solvents

2011 ◽  
Vol 83 (8) ◽  
pp. 1543-1554 ◽  
Author(s):  
Janusz Jurczak ◽  
Michał J. Chmielewski ◽  
Paweł Dydio ◽  
Dawid Lichosyt ◽  
Filip Ulatowski ◽  
...  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Building Blocks ◽  
Binding Affinities ◽  
Anion Receptors ◽  
New Materials ◽  
Tetrahedral Oxyanions

Neutral anion receptors working in highly demanding solvents are new materials being sought. Benzopyrroles are more acidic than amides and pyrrole itself, and are promising building blocks in the design of host compounds. A whole series of receptors based upon benzopyrroles were synthesized and evaluated. They include carbazole, dipyrrolonaph-thalene, and 7-aminoindole-based hosts. Most of them demonstrate moderate binding affinities in dimethyl sulfoxide (DMSO) and have good selectivity toward tetrahedral oxyanions. Recently, a group of receptors utilizing 7-aminoindole and urea moieties proved to work in a very competitive solvent—methanol.

scholarly journals Predicting the bulk modulus of single-layer covalent organic frameworks with square-lattice topology from molecular building-block properties

Nanoscale ◽  
2021 ◽  
Author(s):  
Antonios Raptakis ◽  
Arezoo Dianat ◽  
Alexander Croy ◽  
Gianaurelio Cuniberti
Keyword(s):  
Bulk Modulus ◽  
Elastic Properties ◽  
Building Block ◽  
Rational Design ◽  
Computational Study ◽  
Single Layer ◽  
Building Blocks ◽  
Square Lattice ◽  
New Materials ◽  
Molecular Building Block

This computational study establishes a correlation between the elastic properties of COFs and their building-blocks towards the rational design of new materials with tailored properties.

Nanoparticle assembly: from fundamentals to applications: concluding remarks

2016 ◽  
Vol 186 ◽  
pp. 529-537 ◽  
Author(s):  
Oleg Gang
Keyword(s):  
Dynamic Behavior ◽  
Self Assembly ◽  
Building Blocks ◽  
Nanoparticle Assembly ◽  
New Materials ◽  
Practical Applications ◽  
Current Trends ◽  
Novel Approaches ◽  
The Creation

Nanoparticles, due to their broadly tunable functions, are major building blocks for generating new materials. However, building such materials for practical applications by self-assembly is quite challenging. Following the Faraday Discussion on “Nanoparticle Assembly: from Fundamentals to Applications” we discuss here the current trends in the field of self-assembly, including: understanding the unique interplay of molecular and nanoscale effects, a development of novel approaches for the creation of targeted nanoparticle architectures, advances in controlling dynamic behavior of systems and enabling new functions through specifically formed structures.

Enantiodifferentiation of carboxylates by chiral building blocks for abiotic anion receptors

1990 ◽  
pp. 55-57 ◽  
Author(s):  
Alexander Gleich ◽  
Franz P. Schmidtchen ◽  
Patrizia Mikulcik ◽  
Gerhard Müller
Keyword(s):  
Building Blocks ◽  
Anion Receptors

Building Blocks for Artificial Anion Receptors: Derivatives of Chiral Bicyclic Guanidines

1995 ◽  
Vol 60 (4) ◽  
pp. 1039-1043 ◽  
Author(s):  
Wolfgang Peschke ◽  
Petra Schiessl ◽  
Franz P. Schmidtchen ◽  
Peter Bissinger ◽  
Annette Schier
Keyword(s):  
Building Blocks ◽  
Anion Receptors ◽  
Derivatives Of

Synthesis, structure, and complexing properties of macrocyclic receptors for anions

2007 ◽  
Vol 79 (6) ◽  
pp. 1087-1096 ◽  
Author(s):  
Michał J. Chmielewski ◽  
Tomasz Zieliński ◽  
Janusz Jurczak
Keyword(s):  
Hydrogen Bonds ◽  
Building Blocks ◽  
Structural Studies ◽  
Anion Receptors ◽  
Model Compounds ◽  
Intramolecular Hydrogen Bonds ◽  
Macrocyclic Receptors ◽  
Complexing Properties ◽  
Intramolecular Hydrogen ◽  
Macrocyclic Effect

Understanding of structure-affinity relationships is crucial for rational receptor design, however, such studies for anion receptors are still limited. Therefore, we investigated this issue in the case of amide-based macrocyclic receptors derived from aromatic diacids (i.e., isophthalic and dipicolinic). Using these model compounds, we examined the macrocyclic effect, the influence of intramolecular hydrogen bonds, and the correlation between the ring size and anion affinity. We found that in contrast to what was known for acyclic diamides, macrocyclic isophthalamide receptors bind anions more weakly than their dipicolinic analogs. Comprehensive structural studies revealed that such behavior is due to intramolecular hydrogen bonds present in isophthalamide receptors. Furthermore, we demonstrated how this obstacle can be overcome by the preparation of a hybrid macrocycle based on both building blocks.

scholarly journals Accelerated discovery of nanomaterials using computer simulation

2018 ◽  
Vol 56 (5) ◽  
Author(s):  
Trung Dac Nguyen ◽  
Hanh Thi Hong Nguyen ◽  
Minh Duy Le ◽  
Hung Xuan Truong
Keyword(s):  
Computer Simulation ◽  
Self Assembly ◽  
Cost Effective ◽  
Building Blocks ◽  
Theoretical Background ◽  
Self Organization ◽  
New Materials ◽  
Complex Interplay ◽  
The Past ◽  
Assembly Pathways

Next-generation nanotechnology demands new materials and devices that are highly efficient, multifunctional, cost-effective and environmental friendly. The need to accelerate the discovery of new materials therefore becomes more pressing than ever. Over the past two decades, self-assembly techniques have provided a promising means for fabricating nanomaterials, where the underlying structures are formed by the self-organization of building blocks, such as nanoparticles, colloids and block copolymers, in a similar fashion to biological systems. The fundamental challenges to these bottom techniques are to design suitable assembling units, to tailor their interaction rules and to identify possible assembly pathways. In this report, we will demonstrate how computer simulation has been a powerful tool for tackling these fundamental challenges, providing not only profound insights into the complex interplay between the building blocks’ geometry and their interactions, but also valuable predictions to inspire on-going and future experiment. Theoretical background of self-assembly studies; simulation methods and data analysis tools commonly used will also be discussed.

scholarly journals PEMANFAATAN LIMBAH GYPSUM BOARD DAN BATU BATA MERAH UNTUK SUBSTITUSI SEMEN PADA PEMBUATAN BETON

2019 ◽  
Vol 2 (2) ◽  
pp. 333
Author(s):  
Didik Hadi Prayogo ◽  
Ahmad Ridwan ◽  
Sigit Winarto
Keyword(s):  
Compressive Strength ◽  
Building Blocks ◽  
New Materials ◽  
Concrete Compressive Strength ◽  
Gypsum Board ◽  
Normal Concrete ◽  
Compressive Strength Test ◽  
Average Compressive Strength ◽  
Main Material

Concrete is one of the most vital building blocks, from columns, bricks, paving to roads made of concrete, so the use of concrete tends to be high. Concrete is often used as the main buffer in a building, so good quality is needed, but this is not accompanied by a declining quality of the material, so it requires innovation in the addition of new materials that can at least reduce the needs of the main material for making concrete, one of which is the utilization of Gypsum Board waste and red brick waste. The results of testing the concrete compressive strength test with the addition of Gypsum Board waste and red brick waste to cement obtained pretty good results. Concrete, which has the highest average compressive strength than normal concrete, has concrete with a mixture of red brick and gypsum waste of 10% each with a compressive strength of 250.56 kg / cm², and which has the lowest compressive strength have concrete with a mixture of red bricks and gypsum waste 15% each with a compressive strength of 195.56 kg / cm².Beton merupakan salah satu unsur penyusun bangunan paling vital mulai dari kolom,bata, paving hingga jalan terbuat dari beton sehingga penggunaan beton cenderung tinggi. Beton sering digunakan sebagai bahan penyangga utama pada suatu bangunan maka diperlukan kualitas yang baik, namun hal tersebut tidak di sertai dengan kualitas bahan yang kian menurun,makadiperlukan inovasi penambahan bahan baru yang setidaknya dapat mengurangi kebutuhan bahan utama pembuat beton, salah satunya pemanfaatan limbah Gypsum Board dan limbah batu bata merah Hasil dari pengetesan uji kuat tekan beton dengan penambahan limbah Gypsum Board dan limbah batu bata merah terhadap semen didapatkanhasil yang cukup bagus Beton yang memiliki nilai kuat tekan rata-rata paling tinggi selain beton normal di miliki beton dengan campuran batu bata merah dan limbah gypsum masing-masing 10% dengan nilai kuat tekan sebesar 250,56 Kg/cm²,dan yang memiliki nilai kuat tekan paling rendah di miliki beton dengan campuran batu bata merah dan limbah gypsum masing-masing 15% dengan nilai kuat tekan 195,56 Kg/cm².

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