Details

Autor(en) / Beteiligte

• Carasel, I. Alexandru
• Yamnitz, Carl R
• Winter, Rudolph K
• Gokel, George W

Titel

Halide Ions Complex and Deprotonate Dipicolinamides and Isophthalamides: Assessment by Mass Spectrometry and UV−Visible Spectroscopy

Ist Teil von

• Journal of organic chemistry, 2010-12, Vol.75 (23), p.8112-8116

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2010

Quelle

MEDLINE

Beschreibungen/Notizen

• The F−, Cl−, and Br− binding selectivity of bis(p-nitroanilide)s of dipicolinic and isophthalic acids was studied by using competitive electrospray mass spectrometry and UV−Visible spectroscopy. Both hosts prefer binding Cl− over either F− or Br−. Host deprotonation was observed to some extent in all experiments in which the host was exposed to halide ions. When F− was present, host deprotonation was often the major process, whereas little deprotonation was observed by Cl− or Br−, which preferred complexation. A solution of either host changed color when mixed with a F−, H2PO4 −, di- or triphenylacetate solution.