Cell permeable fluorescent receptor for detection of H2PO4(-) in aqueous solvent.
A new colorimetric fluorescent receptor for H(2)PO(4)(-) is reported in this communication. The receptor can detect dihydrogen phosphates optically by developing a color change from yellow to green. Acute spectral responses to H(2)PO(4)(-) in HEPES buffer (DMSO-HEPES 1:9) have been observed. The selectivity zone in terms of pH of the receptor for H(2)PO(4)(-) is attributed to the fitness in the acidity (pK(a)) of receptor with H(2)PO(4)(-). Hydrogen bonding plays the key role here which is confirmed by (1)H NMR titration. The receptor also has good potential for bio-imaging. The mode of interaction has also been established by ab initio calculation.
Department of Chemistry, The University of Burdwan, Golapbag, Burdwan-713104, India.
Supriti
S
Sen
Manjira
M
Mukherjee
Kuheli
K
Chakrabarty
Ipsit
I
Hauli
Subhra Kanti
SK
Mukhopadhyay
Pabitra
P
Chattopadhyay
D002176:Candida albicans / Q000737:chemistry* / Q000166:cytology; D003124:Colorimetry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D010710:Phosphates / Q000032:analysis*; D011789:Quantum Theory; D012545:Schiff Bases / Q000138:chemical synthesis / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry
D005456:Fluorescent Dyes; D010710:Phosphates; D012545:Schiff Bases; D012997:Solvents; D014867:Water