Colorimetric anion sensor based on receptor having indole- and thiourea-binding sites

Content Provider	Semantic Scholar
Author	Murali, M. G. Vishnumurthy, Ka Seethamraju, Sindhu Ramamurthy, Praveen C.
Copyright Year	2014
Abstract	A new colorimetric sensor L containing nitro-substituted indole and bisthiocarbonohydrazone units for selective fluoride and acetate ions is designed and synthesized. The receptor L shows well-defined color change in the visible region of the spectrum with an absorption band at similar to 515 nm and 506 nm, respectively, for the F- and CH3COO- ions in an acetonitrile solution. Job's plots indicated the formation of 1 : 1 (L with CH3COO-) and 1 : 2 (L with F-) complexes. The interaction of L with the F- ion undergoes a deprotonation process and release of HX2](-), whereas with the CH3COO- ion, it forms a stable LH2(...)X](-) complex. The relative affinities of the anions with L are rationalized using computational studies.
Starting Page	20592
Ending Page	20598
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C4RA01555J
Alternate Webpage(s)	https://pubs.rsc.org/en/content/getauthorversionpdf/C4RA01555J
Alternate Webpage(s)	https://doi.org/10.1039/C4RA01555J
Volume Number	4
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article