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

Hydrogen-bonded molecular capsules: probing the role of water molecules in capsule formation in modified cyclotricatechylene

CrystEngComm ◽  
2017 ◽  
Vol 19 (32) ◽  
pp. 4759-4765 ◽  
Author(s):  
Giri Teja Illa ◽  
Sohan Hazra ◽  
Pardhasaradhi Satha ◽  
Chandra Shekhar Purohit
Keyword(s):  
Solid State ◽  
Water Molecules ◽  
Capsule Formation ◽  
Molecular Capsules ◽  
Pyridine Moiety ◽  
Hydrogen Bonded

Pyridine moiety-appended doubly bridged cyclotricatechylene (CTC(Py)2(OH)2) was synthesized and characterized. Solid state studies show that CTC(Py)2(OH)2 forms a capsular assembly in the presence of water but a polymeric assembly in its absence.

Supramolecular graft copolymers in moderately polar media based on hydrogen-bonded aromatic oligoamide units

2012 ◽  
Vol 48 (76) ◽  
pp. 9510 ◽  
Author(s):  
Xusong Pan ◽  
Chao Chen ◽  
Jiang Peng ◽  
Yongan Yang ◽  
Yinghan Wang ◽  
...  
Keyword(s):  
Graft Copolymers ◽  
Polar Media ◽  
Hydrogen Bonded

scholarly journals Putting variable-sized alkanes into fixed-size hydrogen-bonded molecular flasks

2014 ◽  
Vol 70 (a1) ◽  
pp. C564-C564
Author(s):  
Arie Van Der Lee ◽  
Dan Dumitrescu ◽  
Yves-Marie Legrand ◽  
Eddy Petit ◽  
Mihail Barboiu
Keyword(s):  
Aqueous Solution ◽  
Single Crystal ◽  
Crystalline State ◽  
Research Area ◽  
Spectroscopic Techniques ◽  
Fixed Size ◽  
Molecular Capsules ◽  
X Ray ◽  
Molecular Flask ◽  
Hydrogen Bonded

Confined alkanes within molecular capsules are an intriguing research area which were studied until now only by spectroscopic techniques, but never by single-crystal X-ray techniques [1-2]. We report here an extremely simple molecular flask made up by hydrogen-bonded tectons, which is used as a container for diammonium alkane chains of variable sizes. It was obtained in aqueous solution as well as in the crystalline state by mixing commercially available components: 1,3,5,8-pyrenetetrasulfonate (PTS), guanidinium (G) and 1,ω-diammonium-alkanes (Figure A). 1,10-diammoniumdecane 1 fits perfectly inside the capsule, while the 1,11-diammonium-undecane 2 and 1,12-diammonium-dodecane 3 chains are progressively compressed. Furthermore, it was observed that the compressed conformers may be stabilized by short dihydrogen contacts (Figure B).

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

An Unnatural Amino Acid that Mimics a Tripeptide β-Strand and Forms β-Sheetlike Hydrogen-Bonded Dimers [J. Am. Chem. Soc.2000,122, 7654-7661]. 

2001 ◽  
Vol 123 (7) ◽  
pp. 1545-1546
Author(s):  
James S. Nowick ◽  
De Michael Chung ◽  
Kalyani Maitra ◽  
Santanu Maitra ◽  
Kimberly D. Stigers ◽  
...  
Keyword(s):  
Amino Acid ◽  
Unnatural Amino Acid ◽  
Hydrogen Bonded

Organic Ferromagnets. Hydrogen Bonded Supramolecular Magnetic Organizations Derived from Hydroxylated Phenyl ?-Nitronyl Nitroxide Radicals

1996 ◽  
Vol 6 (12) ◽  
pp. 1967-1986 ◽  
Author(s):  
J. Veciana ◽  
J. Cirujeda ◽  
C. Rovira ◽  
E. Molins ◽  
J. J. Novoa
Keyword(s):  
Nitronyl Nitroxide ◽  
Nitroxide Radicals ◽  
Organic Ferromagnets ◽  
Hydrogen Bonded

Proteins as specific polar media for charge transfer processes

2012 ◽  
Vol 182 (12) ◽  
pp. 1275-1300
Author(s):  
Lev I. Krishtalik
Keyword(s):  
Charge Transfer ◽  
Transfer Processes ◽  
Polar Media

A study of thermal motion in hydrogen-bonded crystals

1959 ◽  
Vol 112 (1-6) ◽  
pp. 68-79 ◽  
Author(s):  
J. Monteath Robertson
Keyword(s):  
Thermal Motion ◽  
Hydrogen Bonded
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