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Manuscript
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H NMR data
1
information: IR and
Supplementary
Synthesis, characterization and biological activity of Schiff bases based on
chitosan and arylpyrazole moiety
Hend E. Salama, Gamal R. Saad, Magdy W. Sabaa*
Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
*Corresponding author: Magdy W. Sabaa (mwsabaa@hotmail.com)
Supplementary Figure S1.
FT-IR spectra of
3-(4-substituted-phenyl)-1-phenyl-1H-pyrazole-4-
carbaldehyde.
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Supplementary Figure S2.
1
H
NMR spectra of
3-(4-substituted-phenyl)-1-phenyl-1H-pyrazole-4-
carbaldehyde.
3-phenyl-1-phenyl-1H-pyrazole-4 carbaldehyde (1)
FT-IR (KBr, cm
-1
):
3121- 3061 (C-H stretching in aromatic ring), 2923 and 2864 (C-H stretching in
alkyl group), 2837 and 2785 (C-H aldehydic doublet), 1671 (strong C=O stretching), 1597 (C=N
cyclic), 754, 694 (CH=CH of mono substituted benzene), 1630, 1525, 1449 and 1367 (pyrazole
ring).
1
H NMR (DMSO, δ, ppm): 7.40- 8.0(m, 10H, ArH), 9.3 (s, 1H, H-5), 9.98 (s, 1H, CHO)
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