42823-72-3Relevant articles and documents
Monolayer nanosheets formed by liquid exfoliation of charge-assisted hydrogen-bonded frameworks
Nicks, Joshua,Boer, Stephanie A.,White, Nicholas G.,Foster, Jonathan A.
, p. 3322 - 3327 (2021/03/17)
Hydrogen-bonded organic frameworks (HOFs) are a diverse and tunable class of materials, but their potential as free-standing two-dimensional nanomaterials has yet to be explored. Here we report the self-assembly of two layered hydrogen-bonded frameworks based on strong, charge-assisted hydrogen-bonding between carboxylate and amidinium groups. Ultrasound-assisted liquid exfoliation of both materials readily produces monolayer hydrogen-bonded organic nanosheets (HONs) with micron-sized lateral dimensions. The HONs show remarkable stability and maintain their extended crystallinity and monolayer structures even after being suspended in water at 80 °C for three days. These systems also exhibit efficient fluorescence quenching of an organic dye in organic solvents, superior to the quenching ability of the bulk frameworks. We anticipate that this approach will provide a route towards a diverse new family of molecular two-dimensional materials.
Fibrinogen receptor antagonist and pharmaceutical compositions comprising the same
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, (2008/06/13)
Compounds of the following general formula (I) and pharmaceutically acceptable salts thereof.
2,3-diaminopropionic acid derivative
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, (2008/06/13)
The present invention relates to a 2,3-diaminopropionic acid derivative of the formula (1): STR1 or a pharmaceutically acceptable salt thereof. The compounds of the present invention are useful as a platelet aggregation inhibitor, a cancer metastasis inhibitor, a wound healing agent or a bone resorption inhibitor.