Crystal Engineering: Lattice Inclusion Based on O–H···O Hydrogen-Bonded Self-Assembly and Guest-Induced Structural Mimicry

2012 ◽  
Vol 77 (18) ◽  
pp. 7858-7865 ◽  
Author(s):  
Alankriti Bajpai ◽  
Palani Natarajan ◽  
Paloth Venugopalan ◽  
Jarugu Narasimha Moorthy
Keyword(s):  
Crystal Engineering ◽  
Self Assembly ◽  
Hydrogen Bonded

scholarly journals Synthesis of microporous hydrogen-bonded supramolecular organic frameworks through guanosine self-assembly

2021 ◽  
pp. 100519
Author(s):  
Ying He ◽  
Yanbin Zhang ◽  
Mengjia Liu ◽  
Kai Zhao ◽  
Chuan Shan ◽  
...  
Keyword(s):  
Self Assembly ◽  
Hydrogen Bonded

scholarly journals Taming nitroformate through encapsulation with nitrogen-rich hydrogen-bonded organic frameworks

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jichuan Zhang ◽  
Yongan Feng ◽  
Richard J. Staples ◽  
Jiaheng Zhang ◽  
Jean’ne M. Shreeve
Keyword(s):  
Thermal Stability ◽  
Hydrogen Bonds ◽  
Self Assembly ◽  
Energetic Materials ◽  
Decomposition Temperature ◽  
High Oxygen Content ◽  
The Poor ◽  
Simple Preparation ◽  
First Time ◽  
Hydrogen Bonded

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.

Concomitant polymorphs of 1,3-bis(3-fluorophenyl)urea

2016 ◽  
Vol 72 (9) ◽  
pp. 692-696 ◽  
Author(s):  
Christina A. Capacci-Daniel ◽  
Jeffery A. Bertke ◽  
Shoaleh Dehghan ◽  
Rupa Hiremath-Darji ◽  
Jennifer A. Swift
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Engineering ◽  
Structural Motif ◽  
Parallel Orientation ◽  
One Dimensional ◽  
Monoclinic Form ◽  
Engineering Studies ◽  
Hydrogen Bonded

Hydrogen bonding between urea functionalities is a common structural motif employed in crystal-engineering studies. Crystallization of 1,3-bis(3-fluorophenyl)urea, C13H10F2N2O, from many solvents yielded concomitant mixtures of at least two polymorphs. In the monoclinic form, one-dimensional chains of hydrogen-bonded urea molecules align in an antiparallel orientation, as is typical of many diphenylureas. In the orthorhombic form, one-dimensional chains of hydrogen-bonded urea molecules have a parallel orientation rarely observed in symmetrically substituted diphenylureas.

Chemical and Constitutional Influences in the Self-Assembly of Functional Supramolecular Hydrogen-Bonded Nanoscopic Fibres

2006 ◽  
Vol 12 (36) ◽  
pp. 9161-9175 ◽  
Author(s):  
Josep Puigmartí-Luis ◽  
Andrea Minoia ◽  
Ángel Pérez del Pino ◽  
Gregori Ujaque ◽  
Concepció Rovira ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Hydrogen Bonded

scholarly journals Unusual co-crystal of isonicotinamide: the structural landscape in crystal engineering

2012 ◽  
Vol 370 (1969) ◽  
pp. 2900-2915 ◽  
Author(s):  
Srinu Tothadi ◽  
Gautam R. Desiraju
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Crystal Engineering ◽  
Organic Molecule ◽  
Reference Molecule ◽  
Hydrogen Bonded

The idea of a structural landscape is based on the fact that a large number of crystal structures can be associated with a particular organic molecule. Taken together, all these structures constitute the landscape. The landscape includes polymorphs, pseudopolymorphs and solvates. Under certain circumstances, it may also include multi-component crystals (or co-crystals) that contain the reference molecule as one of the components. Under still other circumstances, the landscape may include the crystal structures of molecules that are closely related to the reference molecule. The idea of a landscape is to facilitate the understanding of the process of crystallization. It includes all minima that can, in principle, be accessed by the molecule in question as it traverses the path from solution to the crystal. Isonicotinamide is a molecule that is known to form many co-crystals. We report here a 2:1 co-crystal of this amide with 3,5-dinitrobenzoic acid, wherein an unusual N−H⋯N hydrogen-bonded pattern is observed. This crystal structure offers some hints about the recognition processes between molecules that might be implicated during crystallization. Also included is a review of other recent results that illustrate the concept of the structural landscape.

The Oxamate Anion:  A Flexible Building Block of Hydrogen-Bonded Architectures for Crystal Engineering

1996 ◽  
Vol 118 (42) ◽  
pp. 10134-10140 ◽  
Author(s):  
Christer B. Aakeröy ◽  
Deirdre P. Hughes ◽  
Mark Nieuwenhuyzen
Keyword(s):  
Crystal Engineering ◽  
Building Block ◽  
Hydrogen Bonded

Surface self-assembly of the cyanuric acid–melamine hydrogen bonded network

2006 ◽  
pp. 538-540 ◽  
Author(s):  
Luís M. A. Perdigão ◽  
Neil R. Champness ◽  
Peter H. Beton
Keyword(s):  
Self Assembly ◽  
Cyanuric Acid ◽  
Hydrogen Bonded
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