Molecular templates and nano-reactors: two-dimensional hydrogen bonded supramolecular networks on solid/liquid interfaces

RSC Advances ◽  
2013 ◽  
Vol 3 (29) ◽  
pp. 11351 ◽  
Author(s):  
Xuemei Zhang ◽  
Qingdao Zeng ◽  
Chen Wang
Keyword(s):  
Two Dimensional ◽  
Liquid Interfaces ◽  
Supramolecular Networks ◽  
Solid Liquid ◽  
Hydrogen Bonded

scholarly journals Two-dimensional polymers with versatile functionalities via gemini monomers

2019 ◽  
Vol 5 (11) ◽  
pp. eaaw9120
Author(s):  
Yang Li ◽  
Huimin Gao ◽  
Huan Yu ◽  
Ke Jiang ◽  
Hua Yu ◽  
...  
Keyword(s):  
Radical Copolymerization ◽  
Two Dimensional ◽  
Liquid Interfaces ◽  
Free Radical Copolymerization ◽  
Practical Applications ◽  
Size And Shape ◽  
Synthetic Strategy ◽  
Repeat Units ◽  
Covalently Linked ◽  
Solid Liquid

Two-dimensional synthetic polymers (2DSPs) are sheet-like macromolecules consisting of covalently linked repeat units in two directions. Access to 2DSPs with controlled size and shape and diverse functionality has been limited because of the need for monomers to retain their crystallinity throughout polymerization. Here, we describe a synthetic strategy for 2DSPs that obviates the need for crystallinity, via the free radical copolymerization of amphiphilic gemini monomers and their monomeric derivatives arranged in a bilayer at solid-liquid interfaces. The ease of this strategy allowed the preparation of 2DSPs with well-controlled size and shape and diverse functionality on solid templates composed of various materials with wide-ranging surface curvatures and dimensions. The resulting 2DSPs showed remarkable mechanical strength and have multiple applications, such as nanolithographic resist and antibacterial agent. The broad scope of this approach markedly expands the chemistry, morphology, and functionality of 2DSPs accessible for practical applications.

Two-dimensional hydrogen-bonded supramolecular networks in the compounds of benzene-1,2,4,5-tetracarboxylic acid (pyromellitic acid) with 2,2′-biimidazole and 4,4′-dimethyl-2,2′-bipyridine

2013 ◽  
Vol 69 (12) ◽  
pp. 1537-1540
Author(s):  
Kai-Long Zhong
Keyword(s):  
Hydrogen Bonding ◽  
Ion Pairs ◽  
Two Dimensional ◽  
Tetracarboxylic Acid ◽  
Pyromellitic Acid ◽  
One Dimensional ◽  
Proton Transfer Reactions ◽  
Pyridinium Cations ◽  
Supramolecular Networks ◽  
Hydrogen Bonded

Two products from the proton-transfer reactions of benzene-1,2,4,5-tetracarboxylic acid (pyromellitic acid, PMA) with 2,2′-biimidazole and 4,4′-dimethyl-2,2′-bipyridine, namely 2,2′-biimidazole-3,3′-diium 2,5-dicarboxybenzene-1,4-dicarboxylate, C6H8N42+,C10H4O82−, (I), and 4-methyl-2-(4-methylpyridin-2-yl)pyridinium 2,4,5-tricarboxybenzoate monohydrate, C12H13N2+·C10H5O8−·H2O, (II), have been prepared and their structures determined. Both compounds crystallize in the space groupP\overline{1}. The asymmetric unit of (I) is composed of two independent ion pairs. Both the 2,2′-biimidazole-3,3′-diium dication and the PMA2−anion are located on special positions (inversion centres). The protonated 2,2′-biimidazole-3,3′-diium ring H atoms are involved in hydrogen bonding with carboxylate O atoms to form one-dimensional hydrogen-bonded chain structures. Adjacent chains are further linkedviacarboxyl–carboxyl O—H...O hydrogen bonding, resulting in a two-dimensional supramolecular sheet with theR65(34) motif extending in the (1\overline{2}1) plane. In (II), classical O—H...O hydrogen-bond-linked anion–anion units are extended into a one-dimensional chain running parallel to the [100] direction, giving anR22(8)R44(30) motif. The chains are connected by water–carboxyl O—H...O hydrogen bonds to form a two-dimensional network parallel to the (01\overline{1}) plane. The 4-methyl-2-(4-methylpyridin-2-yl)pyridinium cations lie between the two-dimensional supramolecular layers linkedviaN—H...O hydrogen-bonding interactions.

Two-dimensional soft supramolecular networks

2015 ◽  
Vol 51 (97) ◽  
pp. 17297-17300 ◽  
Author(s):  
Carlos-Andres Palma ◽  
Artur Ciesielski ◽  
Murat Anil Öner ◽  
Gaël Schaeffer ◽  
Jean-Marie Lehn ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Liquid Interface ◽  
Two Dimensional ◽  
Local Disorder ◽  
Self Assembled ◽  
Supramolecular Networks ◽  
Solid Liquid Interface ◽  
Solid Liquid

Soft networks are self-assembled at the solid/liquid interface and characterized by local disorder arising from multivalent flexible intermolecular interactions.

Two-Dimensional Protein Crystallization at Solid−Liquid Interfaces

Langmuir ◽  
1997 ◽  
Vol 13 (25) ◽  
pp. 6737-6745 ◽  
Author(s):  
T. L. Calvert ◽  
D. Leckband
Keyword(s):  
Protein Crystallization ◽  
Two Dimensional ◽  
Liquid Interfaces ◽  
Solid Liquid
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