Superior thermally robust energetic materials featuring Z–E isomeric bis(3,4-diamino-1,2,4-triazol-5-yl)-1H-pyrazole: self-assembly nitrogen-rich tubes and templates with Hofmeister anion capture architecture

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3144-3154
Author(s):  
Wenjing Geng ◽  
Yunfei Jia ◽  
Ya Chen ◽  
Qing Ma ◽  
Guijuan Fan ◽  
...  

A super thermally robust nitrogen-rich framework was synthesized, and Z → E isomerization as well as supramolecular assembly inclusion strategy gave rise to two different nitrogen-rich tubes and templates with Hofmeister anions capture architecture.

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jichuan Zhang ◽  
Yongan Feng ◽  
Richard J. Staples ◽  
Jiaheng Zhang ◽  
Jean’ne M. Shreeve

AbstractOwing to its simple preparation and high oxygen content, nitroformate [−C(NO2)3, NF] is an extremely attractive oxidant component for propellants and explosives. However, the poor thermostability of NF-based derivatives has been an unconquerable barrier for more than 150 years, thus hindering its application. In this study, the first example of a nitrogen-rich hydrogen-bonded organic framework (HOF-NF) is designed and constructed through self-assembly in energetic materials, in which NF anions are trapped in pores of the resulting framework via the dual force of ionic and hydrogen bonds from the strengthened framework. These factors lead to the decomposition temperature of the resulting HOF-NF moiety being 200 °C, which exceeds the challenge of thermal stability over 180 °C for the first time among NF-based compounds. A large number of NF-based compounds with high stabilities and excellent properties can be designed and synthesized on the basis of this work.


RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 41761-41764 ◽  
Author(s):  
M. B. Bijesh ◽  
Rituraj Mishra ◽  
Narayanan D. Kurur ◽  
V. Haridas

Macrocycles containing serine self-assembled into fibres, while threonine induced vesicular self-assembly. Macrocycles with serine can be driven to form vesicular assembly by incorporating a non-planar spacer.


Nanoscale ◽  
2020 ◽  
Vol 12 (22) ◽  
pp. 11986-11996
Author(s):  
K. D. M. Rao ◽  
Mozakkar Hossain ◽  
Umesh ◽  
Aniket Roy ◽  
Anudeepa Ghosh ◽  
...  

Fully transparent perovskite microwire arrays passivated with supramolecular assembly for stable and high-performance photodetectors.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Julia Y. Rho ◽  
Henry Cox ◽  
Edward D. H. Mansfield ◽  
Sean H. Ellacott ◽  
Raoul Peltier ◽  
...  

Abstract Self-assembling peptides have the ability to spontaneously aggregate into large ordered structures. The reversibility of the peptide hydrogen bonded supramolecular assembly make them tunable to a host of different applications, although it leaves them highly dynamic and prone to disassembly at the low concentration needed for biological applications. Here we demonstrate that a secondary hydrophobic interaction, near the peptide core, can stabilise the highly dynamic peptide bonds, without losing the vital solubility of the systems in aqueous conditions. This hierarchical self-assembly process can be used to stabilise a range of different β-sheet hydrogen bonded architectures.


RSC Advances ◽  
2015 ◽  
Vol 5 (109) ◽  
pp. 90158-90167 ◽  
Author(s):  
Manoj K. Manna ◽  
Dnyaneshwar B. Rasale ◽  
Apurba K. Das

Optical and self-assembly nature of an aromatic dipeptide Phe-Phe (FF) functionalized benzo[ghi]perylene monoimide (BPI) are studied. Acceptor BPI-FF-OMe molecule shows white light emission upon energy transfer from donor pyrenebutyric acid molecule.


2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Charly Empereur-Mot ◽  
Hector Garcia-Seisdedos ◽  
Nadav Elad ◽  
Sucharita Dey ◽  
Emmanuel D. Levy

Abstract Proteins can self-associate with copies of themselves to form symmetric complexes called homomers. Homomers are widespread in all kingdoms of life and allow for unique geometric and functional properties, as reflected in viral capsids or allostery. Once a protein forms a homomer, however, its internal symmetry can compound the effect of point mutations and trigger uncontrolled self-assembly into high-order structures. We identified mutation hot spots for supramolecular assembly, which are predictable by geometry. Here, we present a dataset of descriptors that characterize these hot spot positions both geometrically and chemically, as well as computer scripts allowing the calculation and visualization of these properties for homomers of choice. Since the biological relevance of homomers is not readily available from their X-ray crystallographic structure, we also provide reliability estimates obtained by methods we recently developed. These data have implications in the study of disease-causing mutations, protein evolution and can be exploited in the design of biomaterials.


2020 ◽  
Vol 56 (49) ◽  
pp. 6644-6647
Author(s):  
Molly Frey ◽  
Michael Vincent ◽  
Sharan Bobbala ◽  
Rajan Burt ◽  
Evan Scott

A robust pipeline of synthesis, self-assembly, and characterization was employed to optimize the fabrication of poly(sarcosine)-b-poly(propylene sulfide) nanostructures.


Author(s):  
Pengliang Sui ◽  
Qiuhong Li ◽  
Huajie Yu ◽  
Dongqin Luo ◽  
Zhaoyu Zhang ◽  
...  

2016 ◽  
Vol 45 (23) ◽  
pp. 9407-9411 ◽  
Author(s):  
Li Li ◽  
Yingjie Zhang ◽  
Maxim Avdeev ◽  
Leonard F. Lindoy ◽  
David G. Harman ◽  
...  

A unique, slightly distorted square prismatic, box-like coordination cage of type [Cu6Dy8L8(MeOH)8(H2O)6](NO3)12·χsolvent has been synthesized via the supramolecular assembly between a non-centrosymmetric Dy(iii) metalloligand and Cu(ii) nitrate.


2017 ◽  
Vol 53 (87) ◽  
pp. 11937-11940 ◽  
Author(s):  
Ying Liu ◽  
Ding-Kun Ji ◽  
Lei Dong ◽  
Nicolas Galanos ◽  
Yi Zang ◽  
...  

Supramolecular self-assembly between perylenediimide-based glycoclusters and a red-emitting fluorophore produces structurally uniform and stable glyco-dots amenable to targeted fluorogenic imaging of liver and triple-negative breast cancer cells.


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