Selective Stabilization of Self-Assembled Hydrogen-Bonded Molecular Capsules Through π–π Interactions

2012 ◽  
Vol 134 (6) ◽  
pp. 2914-2917 ◽  
Author(s):  
Konrad Tiefenbacher ◽  
Julius Rebek
Keyword(s):  
Molecular Capsules ◽  
Π Interactions ◽  
Selective Stabilization ◽  
Self Assembled ◽  
Hydrogen Bonded

Hydrogen-bonded molecular capsules are stable in polar media

2001 ◽  
pp. 2376-2377 ◽  
Author(s):  
Jerry L. Atwood ◽  
Leonard J. Barbour ◽  
Agoston Jerga
Keyword(s):  
Molecular Capsules ◽  
Polar Media ◽  
Hydrogen Bonded

Selectivity of guest–host interactions in self-assembled hydrogen-bonded nanostructures observed by NMR

2007 ◽  
Vol 9 (32) ◽  
pp. 4545 ◽  
Author(s):  
Gunther Brunklaus ◽  
Achim Koch ◽  
Daniel Sebastiani ◽  
Hans Wolfgang Spiess
Keyword(s):  
Host Interactions ◽  
Self Assembled ◽  
Hydrogen Bonded

Hydrogen-bonding networks of purine derivatives and their bilayers for guest intercalation

CrystEngComm ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 62-67
Author(s):  
Yoona Jang ◽  
Seo Yeon Yoo ◽  
Hye Rin Gu ◽  
Yu Jin Lee ◽  
Young Shin Cha ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Two Dimensional ◽  
Purine Derivatives ◽  
Guest Molecules ◽  
Π Interactions ◽  
Hydrogen Bonding Networks ◽  
Hydrogen Bonded

6-Chloro-9-propyl-purin-2-amine (pr-GCl) forms two-dimensional hydrogen-bonded networks which in turn stack via π–π interactions, leading to the formation of bilayers that can accommodate organic guest molecules.

scholarly journals Isotypic MnIIand FeIIbinuclear complexes of the ligand 5,6-bis(pyridin-2-yl)-pyrazine-2,3-dicarboxylic acid

2016 ◽  
Vol 72 (10) ◽  
pp. 1412-1416
Author(s):  
Monserrat Alfonso ◽  
Helen Stoeckli-Evans
Keyword(s):  
Hydrogen Bonds ◽  
Dicarboxylic Acid ◽  
Metal Ion ◽  
Three Dimensional ◽  
Water Molecules ◽  
Inversion Symmetry ◽  
Π Interactions ◽  
Metal Atoms ◽  
Hydrogen Bonded

The title isotypic complexes, bis[μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato]-κ4N1,O2,N6:O3;κ4O3:N1,O2,N6-bis[diaquamanganese(II)] tetrahydrate, [Mn2(C16H8N4O4)2(H2O)4]·4H2O, (I), and bis[μ-5,6-bis(pyridin-2-yl)pyrazine-2,3-dicarboxylato]-κ4N1,O2,N6:O3;κ4O3:N1,O2,N6-bis[diaquairon(II)] tetrahydrate, [Fe2(C16H8N4O4)2(H2O)4]·4H2O, (II), are, respectively, the manganese(II) and iron(II) complexes of the ligand 5,6-bis(pyridin-2-yl)-pyrazine-2,3-dicarboxylic acid. The complete molecule of each complex is generated by inversion symmetry. Each metal ion is coordinated by a pyrazine N atom, a pyridine N atom, two carboxylate O atoms, one of which is bridging, and two water O atoms. The metal atoms haveMN2O4coordination geometries and the complexes have a cage-like structure. In the crystals of both compounds, the complexes are linked by O—H...O and O—H...N hydrogen bonds involving the coordinating water molecules, forming chains along [100]. These chains are linked by O—H...O hydrogen bonds involving the non-coordinating water molecules, forming layers parallel to (011). The layers are linked by pairs of C—H...O hydrogen bonds and offset π–π interactions, so forming a hydrogen-bonded three-dimensional framework.

scholarly journals Self‐Assembled Columnar Triazole Quartets: An Example of Synergistic Hydrogen‐Bonding/Anion–π Interactions

2019 ◽  
Vol 131 (35) ◽  
pp. 12165-12170 ◽  
Author(s):  
Shao‐Ping Zheng ◽  
Yu‐Hao Li ◽  
Ji‐Jun Jiang ◽  
Arie van der Lee ◽  
Dan Dumitrescu ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Π Interactions ◽  
Self Assembled

scholarly journals Molecular Capsule Catalysis: Ready to Address Current Challenges in Synthetic Organic Chemistry?

2020 ◽  
Vol 74 (7) ◽  
pp. 561-568
Author(s):  
Ivana Némethová ◽  
Leonidas-Dimitrios Syntrivanis ◽  
Konrad Tiefenbacher
Keyword(s):  
Organic Chemistry ◽  
Building Blocks ◽  
Short Article ◽  
Molecular Capsules ◽  
Synthetic Organic Chemistry ◽  
Size And Shape ◽  
Molecular Capsule ◽  
Hydrophobic Binding ◽  
Binding Pockets ◽  
Self Assembled

Self-assembled molecular capsules, host structures that form spontaneously when their building blocks are mixed, have been known since the 1990s. They share some basic similarities with enzyme pockets, as they feature defined hydrophobic binding pockets that are able to bind molecules of appropriate size and shape. The potential to utilize such host structures for catalysis has been explored since their discovery; however, applications that solve current challenges in synthetic organic chemistry have remained limited. In this short article, we discuss the challenges associated with the use of molecular capsules as catalysts, and highlight some recent applications of supramolecular capsules to overcome challenges in synthetic organic chemistry.

scholarly journals DFT investigation of role of N – H⋯O and N – H⋯π interactions in the stabilization of the hydrogen bonded complexes of anisole with aromatic amines

Heliyon ◽  
2019 ◽  
Vol 5 (7) ◽  
pp. e02155 ◽  
Author(s):  
Anil Singh Rajpurohit ◽  
R. Rajesh ◽  
R. Raj Muhamed ◽  
M. Jaccob ◽  
A. Justin Adaikala Baskar ◽  
...  
Keyword(s):  
Aromatic Amines ◽  
Π Interactions ◽  
Bonded Complexes ◽  
Hydrogen Bonded

scholarly journals Rücktitelbild: Self‐Assembled Columnar Triazole Quartets: An Example of Synergistic Hydrogen‐Bonding/Anion–π Interactions (Angew. Chem. 35/2019)

2019 ◽  
Vol 131 (35) ◽  
pp. 12434-12434
Author(s):  
Shao‐Ping Zheng ◽  
Yu‐Hao Li ◽  
Ji‐Jun Jiang ◽  
Arie van der Lee ◽  
Dan Dumitrescu ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Π Interactions ◽  
Self Assembled

Synthesis and Crystal Structure of [(CH2)6N4CH3]2[CoCl4]

2002 ◽  
Vol 55 (9) ◽  
pp. 561 ◽  
Author(s):  
W. Li ◽  
S.-L. Zheng ◽  
C.-R. Zhu ◽  
Y.-X. Tong ◽  
X.-M. Chen
Keyword(s):  
Crystal Structure ◽  
Nitrogen Atom ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Title Complex ◽  
Chlorine Atoms ◽  
Synthesis And Crystal Structure ◽  
Methylene Groups ◽  
Self Assembled ◽  
Hydrogen Bonded

The interesting three-dimensional hydrogen-bonded self-assembled network of [(CH2)6N4CH3]+ cations and [CoCl4]2– anions has been prepared and structurally characterized. In the title complex, the quaternization of one hexamethylenetetramine nitrogen atom has been trapped, and further stabilized by the large [CoCl4]2– anions, featuring C–H���Cl hydrogen bonds (3.497–3.709 �) between the methylene groups of [(CH2)6N4CH3]+ cations and the chlorine atoms of the [CoCl4]2– anions.

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