These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Fluorogenic sensing of CH3CO2- and H2PO4- by ditopic receptor through conformational change.
    Author: Ahmed N, Suresh V, Shirinfar B, Geronimo I, Bist A, Hwang IC, Kim KS.
    Journal: Org Biomol Chem; 2012 Mar 14; 10(10):2094-100. PubMed ID: 22293977.
    Abstract:
    Cyclo-bis-(urea-3,6-dichlorocarbazole) (1) forms a 1 : 2 complex with CH(3)CO(2)(-) and H(2)PO(4)(-) through hydrogen bonding with the two urea moieties, resulting in fluorescence enhancement via a combined photoinduced electron transfer (PET) and energy transfer mechanism. The binding mechanism involves a conformational change of the two urea receptors to a trans orientation after binding of the first anion, which facilitates the second interaction.
    [Abstract] [Full Text] [Related] [New Search]