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Synthesis, spectroscopic characterization, and crystal structures of Schiff bases derived from nicotinic hydrazide

Abstract : Two Schiff bases were prepared from nicotinic hydrazide and o-vanillin (H2L 1) (1) or salicylaldehyde (H2L 2) (3) and were characterized by elemental analysis, 1 H and 13 C NMR and IR spectroscopic studies. Compound were protonated in ethanol-nitric acid solution and gave compound [(H3L 1). (NO3)] (2). The compound (2) crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 7.2005 (3) Å, b = 8.8914 (4) Å, c = 22.6392 (9) Å, = 96.753 (2)°, V = 1439.36 (11) Å3, Z = 4, R1 = 0.059 and wR2 = 0.037. The compound (3) crystallizes in the monoclinic space group P21/c with unit cell dimensions a = 26.615 (4) Å, b = 11.3366 (14) Å, c = 8.1903 (9) Å, = 98.814 (3)°, V = 2442.0 (5) Å3, Z = 8, R1 = 0.085 and wR2 = 0.141. Both molecules present inter and intramolecular hydrogen bonds which consolidate the structures in three-dimensional networks.
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https://hal-cnrs.archives-ouvertes.fr/hal-03788381
Contributor : Abdelaziz Jouaiti Connect in order to contact the contributor
Submitted on : Monday, September 26, 2022 - 2:31:04 PM
Last modification on : Tuesday, September 27, 2022 - 4:31:39 AM

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Fatou Diouf, Elhadj Alioune Fall, Farba Bouyagui Tamboura, Mohamed Gaye, Nathalie Gruber, et al.. Synthesis, spectroscopic characterization, and crystal structures of Schiff bases derived from nicotinic hydrazide. IOSR Journal of Applied Chemistry, 2022, 15 (1 série II), pp.13-20. ⟨hal-03788381⟩

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