A series of mono- and bifunctional compounds 2-7, based on the ureido pyrimidinone quadruple hydrogen bonding unit, was prepared to study the mode of aggregation of these compounds in the bulk and in solution. Compounds 2-7 exhibit thermotropic liquid crystalline properties, as evidenced by differen
Formation of supramolecular aggregates by hydrogen bonding based on bispyrimidine and bisbarbituric acid
โ Scribed by Zhiqiang Wang; Liyan Wang; Xi Zhang; Jiacong Shen; Steffen Denzinger; Helmut Ringsdorf
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 598 KB
- Volume
- 198
- Category
- Article
- ISSN
- 1022-1352
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โฆ Synopsis
Abstract
Hydrogen bonds between bispyrimidine and bisbarbituric acid in equal molar ratio can lead to the formation of supramolecular aggregates. This is established by TEM, IR and DSC measurements. Additionally, WAXS pattern showed that the aggregate is of laminar structure. Both the hydrolysis of this system and termination of the aggregate's growth were studied.
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