321898-65-1Relevant academic research and scientific papers
Anion sensor based on the indoaniline-thiourea system
Lee, Dong Hoon,Lee, Ho Yong,Hong, Jong-In
, p. 7273 - 7276 (2002)
A new chromogenic indoaniline-thiourea-based sensor was designed to recognize anions in an organic solvent through complementary intermolecular hydrogen bonding. Complexed anions cause significant disturbance to the intramolecular hydrogen-bonded structure of the sensor, which then induces color and UV-vis spectral changes. This sensor allows for selective colorimetric detection of tetrahedral oxoanions (HSO4- and H2PO4-).
An azophenol-based chromogenic anion sensor
Lee, Dong Hoon,Lee, Kwan Hee,Hong, Jong-In
, p. 5 - 7 (2007/10/03)
(equation presented) A new chromogenic azophenol-thiourea based anion sensor, 2, has been developed. This system allows for the selective colorimetric detection of F-, H2PO4-, and AcO-. Selectivity trends turned out to be dependent upon guest basicity and conformational complementarity between 2 and the guest.
