5391-92-4Relevant academic research and scientific papers
Turn-on fluorescence sensor for mono- and di-phosphonic acid derivatives using anthracene-based diamidine and its detection of amidinium-phosphonate and amidinium formation
Kusukawa, Takahiro,Nagano, Hitoshi,Nakaguchi, Keita,Takeshita, Shota,Harumoto, Yuya
, p. 465 - 476 (2018/01/03)
The fluorescence detection of di-phosphonic acid and mono-phosphonic acid derivatives using the anthracene-based diamidine 1 has been investigated. The diamidine 1 forms 1:1 and 1:2 complexes with the di-phosphonic acid and mono-phosphonic acid derivative
FLAVIN DERIVATIVES
-
Page/Page column 182, (2010/04/03)
The present invention relates novel flavin derivatives and other flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives. The invention also provides method of making novel flavin derivatives.
Microwave michaelis-becker synthesis of diethyl phosphonates, tetraethyl diphosphonates, and their total or partial dealkylation
Meziane, Dalila,Hardouin, Julie,Elias, Abdelhamid,Guenin, Erwann,Lecouvey, Marc
experimental part, p. 369 - 377 (2010/07/16)
Diethyl phosphonates and tetraethyl alkyldiphosphonates were efficiently and rapidly prepared via the Michaelis-Becker reaction, under microwave irradiation. These compounds were then hydrolyzed to phosphonic and diphosphonic acids or selectively monodealkylated to give monoesters of phosphonic acids and symmetrical diethyl esters of diphosphonic acids. These reactions were also achieved rapidly in satisfactory yields with microwave methodology. This methodology was applied with success to the functionalization of a polymer resin.
Dynamics within a single molecular layer. Aggregation, relaxation, and the absence of motion
Horne,Blanchard
, p. 12788 - 12795 (2007/10/03)
We report on the transient and steady-state optical responses of the chromophore 2,2′-bithiophene-5,5′-diylbis(phosphonic acid) (BDP) incorporated within a single zirconium-phosphonate layer as a function of chromophore density. While the dilute solution optical response of BDP reveals no anomalous behavior, its characteristics are substantially different when confined within a monolayer. We vary the concentrations of layer constituents to determine the extent of interaction between BDP moieties within a single monolayer. We observe limited initial aggregation of BDP, the extent of which is determined largely by the conditions under which the monolayer is formed. Over time, the fractional contribution of BDP aggregates to the total optical response decreases to a limiting value, implicating surface adsorption site density as the dominant factor in determining the morphology of the organobis(phosphonate) layer. Motional relaxation measurements of BDP within the layer show that the chromophores are immobile on the hundreds-of-picoseconds time scale of our experiments.
