Protection against the Phytotoxic Effect of Mercury Chloride by Catechin and Quercetin

Table 2

Characterization of the most relevant FTIR peaks of pure quercetin and associated with mercury chloride.

	Wavenumber (cm^-1)
Pure	0.05 mM HgCl2	1.25 mM HgCl2	Assignment
820	820	820	δ (C-H) off plan [27, 28]
1165	1165	1165	ν (C=O) ring [27, 28]
1205	1205	1205	ν (C=O) ring [27, 28]
1317	1316	1316	δ (C-H) off plan [27, 28]
1360	1358	1357	δ (C-OH) [27, 28]
1515	1510	1510	C=C aromatic ring [27, 28]
1556	1560	1560	C=C aromatic ring [27, 28]
1610	1610	1510	C=C aromatic ring [27, 28]
1669	1654	1654	ν (C=O) aryl ketone valence band [27, 28]
3294	3294		ν (O-H) [27, 28]
3376			ν (O-H) [27, 28]
3406			ν (O-H) [27, 28]
3419			ν (O-H) [27, 28]

ν = stretching, δ = bending, r = rocking, and ω = wagging.