scholarly journals Hydrogen bond guided synthesis of close-packed one-dimensional graphdiyne on the Ag(111) surface

2019 ◽  
Vol 10 (47) ◽  
pp. 10849-10852 ◽  
Author(s):  
Zhi Chen ◽  
Tao Lin ◽  
Haohan Li ◽  
Fang Cheng ◽  
Chenliang Su ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Self Assembly ◽  
One Dimensional

Aided by hydrogen bonding, alkyne and oxazole functionalized precursors undergo uniform self-assembly, which serves as a template for the fabrication of one-dimensional graphdiyne-like wires on the Ag(111) surface.

scholarly journals Crystal structures of butyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate and 2-methoxyethyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate

2019 ◽  
Vol 75 (6) ◽  
pp. 880-887 ◽  
Author(s):  
Rosita Diana ◽  
Angela Tuzi ◽  
Barbara Panunzi ◽  
Antonio Carella ◽  
Ugo Caruso
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Molecular Structures ◽  
Antitumoral Activity ◽  
Space Group ◽  
One Dimensional ◽  
Axis Direction ◽  
Hydrogen Bonding Pattern ◽  
Butyl Group

The title benzofuran derivatives 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate (BF1), C19H18N2O6, and 2-methoxyethyl 2-amino-5-hydroxy-4-(4-nitrophenyl)benzofuran-3-carboxylate (BF2), C18H16N2O7, recently attracted attention because of their promising antitumoral activity. BF1 crystallizes in the space group P\overline{1}. BF2 in the space group P21/c. The nitrophenyl group is inclined to benzofuran moiety with a dihedral angle between their mean planes of 69.2 (2)° in BF1 and 60.20 (6)° in BF2. A common feature in the molecular structures of BF1 and BF2 is the intramolecular N—H...Ocarbonyl hydrogen bond. In the crystal of BF1, the molecules are linked head-to-tail into a one-dimensional hydrogen-bonding pattern along the a-axis direction. In BF2, pairs of head-to-tail hydrogen-bonded chains of molecules along the b-axis direction are linked by O—H...Omethoxy hydrogen bonds. In BF1, the butyl group is disordered over two orientations with occupancies of 0.557 (13) and 0.443 (13).

scholarly journals Straightforward Preparation of Supramolecular Janus Nanorods by Hydrogen Bonding of End-Functionalized Polymers

2020 ◽  
Author(s):  
Shuaiyuan Han ◽  
Sandrine Pensec ◽  
Cédric Lorthioir ◽  
Jacques Jestin ◽  
Jean-Michel Guigner ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Functional Materials ◽  
Phase Segregation ◽  
Building Blocks ◽  
Functionalized Polymers ◽  
Nanometer Range ◽  
One Dimensional ◽  
Oil In Water ◽  
First Time

Janus cylinders are one-dimensional colloids that have two faces with different compositions and functionalities and are useful as building blocks for advanced functional materials. Such anisotropic objects are difficult to prepare with nanometric dimensions. Here we describe a robust and versatile strategy to form micrometer long Janus nanorods with diameters in the 10-nanometer range, by self-assembly in water of end-functionalized polymers. For the first time, the Janus topology is not a result of the phase segregation of incompatible polymer arms, but is driven by the interactions between unsymmetrical and complementary hydrogen bonded stickers. It is therefore independent of the actual polymers used and works even for compatible polymers. To illustrate their applicative potential, we show that these Janus nanorods can efficiently stabilize oil-in-water emulsions.

Self-assembly and characterization of hydrogen-bonding one-dimensional nanostructure based on 9,10-anthraquinone derivatives

CrystEngComm ◽  
2011 ◽  
Vol 13 (19) ◽  
pp. 5783 ◽  
Author(s):  
Xiuhua Wang ◽  
Sufan Wang ◽  
Li Liu ◽  
Mingwang Shao ◽  
Shifeng Li
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
One Dimensional ◽  
Anthraquinone Derivatives

scholarly journals Crystal structures and hydrogen bonding in the morpholinium salts of four phenoxyacetic acid analogues

2015 ◽  
Vol 71 (11) ◽  
pp. 1392-1396 ◽  
Author(s):  
Graham Smith ◽  
Daniel E. Lynch
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Ion Pairs ◽  
Phenoxyacetic Acid ◽  
Dimensional Chain ◽  
Hydrogen Bonding Interaction ◽  
One Dimensional ◽  
Bonding Interaction ◽  
Graph Set ◽  
Dichlorophenoxy Acetic Acid

The anhydrous salts morpholinium (tetrahydro-2-H-1,4-oxazin-4-ium) phenoxyacetate, C4H10NO+·C8H7O3−, (I), morpholinium (4-fluorophenoxy)acetate, C4H10NO+·C8H6 FO3−, (II), and isomeric morpholinium (3,5-dichlorophenoxy)acetate (3,5-D), (III), and morpholinium (2,4-dichlorophenoxy)acetic acid (2,4-D), C4H10NO+·C8H5Cl2O3−, (IV), have been determined and their hydrogen-bonded structures are described. In the crystals of (I), (III) and (IV), one of the the aminium H atoms is involved in a three-centre asymmetric cation–anion N—H...O,O′R12(4) hydrogen-bonding interaction with the two carboxyl O-atom acceptors of the anion. With the structure of (II), the primary N—H...O interaction is linear. In the structures of (I), (II) and (III), the second N—H...Ocarboxylhydrogen bond generates one-dimensional chain structures extending in all cases along [100]. With (IV), the ion pairs are linked though inversion-related N—H...O hydrogen bonds [graph setR42(8)], giving a cyclic heterotetrameric structure.

Syntheses and structures of nickel(II) and copper(II) complexes with biacetyl bis(benzoylhydrazone): one-dimensional self-assembly via π–π interaction and hydrogen bonding

2009 ◽  
Vol 21 (1) ◽  
pp. 147-152 ◽  
Author(s):  
Tulika Ghosh ◽  
Abhik Mukhopadhyay ◽  
Kummari S. C. Dargaiah ◽  
Samudranil Pal
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
One Dimensional

scholarly journals Straightforward Preparation of Supramolecular Janus Nanorods by Hydrogen Bonding of End-Functionalized Polymers

2020 ◽  
Author(s):  
Shuaiyuan Han ◽  
Sandrine Pensec ◽  
Cédric Lorthioir ◽  
Jacques Jestin ◽  
Jean-Michel Guigner ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Functional Materials ◽  
Phase Segregation ◽  
Building Blocks ◽  
Functionalized Polymers ◽  
Nanometer Range ◽  
One Dimensional ◽  
Oil In Water ◽  
First Time

Janus cylinders are one-dimensional colloids that have two faces with different compositions and functionalities and are useful as building blocks for advanced functional materials. Such anisotropic objects are difficult to prepare with nanometric dimensions. Here we describe a robust and versatile strategy to form micrometer long Janus nanorods with diameters in the 10-nanometer range, by self-assembly in water of end-functionalized polymers. For the first time, the Janus topology is not a result of the phase segregation of incompatible polymer arms, but is driven by the interactions between unsymmetrical and complementary hydrogen bonded stickers. It is therefore independent of the actual polymers used and works even for compatible polymers. To illustrate their applicative potential, we show that these Janus nanorods can efficiently stabilize oil-in-water emulsions.

scholarly journals Enhancement of efficiency in organic photovoltaic devices containing self-complementary hydrogen-bonding domains

2013 ◽  
Vol 9 ◽  
pp. 1102-1110 ◽  
Author(s):  
Rohan J Kumar ◽  
Jegadesan Subbiah ◽  
Andrew B Holmes
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Fill Factor ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
One Dimensional ◽  
Self Organized ◽  
Active Layers ◽  
P Type

Self-complementary hydrogen-bonding domains were incorporated as the electron deficient unit in “push–pull”, p-type small molecules for organic photovoltaic active layers. Such compounds were found to enhance the fill factor, compared with similar non-self-organized compounds reported in the literature, leading to higher device efficiencies. Evidence is presented that the ability of these molecules to form one-dimensional hydrogen-bonded chains and subsequently exhibit hierarchical self-assembly into nanostructured domains can be correlated with improved device efficiency.

scholarly journals 41-Azido-41-deoxyrapamycin

2012 ◽  
Vol 68 (4) ◽  
pp. o1206-o1207 ◽  
Author(s):  
Lijun Xie ◽  
Jie Huang ◽  
Jian Zuo ◽  
Hui Yu ◽  
Yuanrong Cheng
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Macrolide Antibiotic ◽  
Ring Structure ◽  
Hydroxy Ketone ◽  
One Dimensional ◽  
Compound C ◽  
Intramolecular Hydrogen ◽  
Hydroxy Groups

The title compound, C51H78N4O12, is a derivative of rapamycin, a triene macrolide antibiotic molecule isolated fromStreptomyces hygroscopicus. The macrocyclic ring structure has 15 chiral centres, with one of the substituent hydroxy groups giving an intramolecular hydrogen bond to a ketone O-atom acceptor. The molecules also form intermolecular hydroxy–ketone O—H...O hydrogen-bonding associations, giving one-dimensional chains extending along (010). The crystal has 108 Å3solvent-accessible voids.

scholarly journals Straightforward preparation of supramolecular Janus nanorods by hydrogen bonding of end-functionalized polymers

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Shuaiyuan Han ◽  
Sandrine Pensec ◽  
Dijwar Yilmaz ◽  
Cédric Lorthioir ◽  
Jacques Jestin ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Functional Materials ◽  
Phase Segregation ◽  
Building Blocks ◽  
Functionalized Polymers ◽  
Nanometer Range ◽  
One Dimensional ◽  
Oil In Water ◽  
Hydrogen Bonded

Abstract Janus cylinders are one-dimensional colloids that have two faces with different compositions and functionalities, and are useful as building blocks for advanced functional materials. Such anisotropic objects are difficult to prepare with nanometric dimensions. Here we describe a robust and versatile strategy to form micrometer long Janus nanorods with diameters in the 10-nanometer range, by self-assembly in water of end-functionalized polymers. The Janus topology is not a result of the phase segregation of incompatible polymer arms, but is driven by the interactions between unsymmetrical and complementary hydrogen bonded stickers. Therefore, even compatible polymers can be used to form these Janus objects. In fact, any polymers should qualify, as long as they do not prevent co-assembly of the stickers. To illustrate their applicative potential, we show that these Janus nanorods can efficiently stabilize oil-in-water emulsions.

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