Synthesis and Photocatalytic Activity of High-Quality Lead(II) Sulfide Nanoparticles from Lead(II) Thiosemicarbazone Complexes as Single Source Precursors

Table 1

Analytical data and physical properties for ligands (L₁H, L₂H) and its complexes.

Compound	Color	Melting point (°C)	Yield (%)	Molar conductivity (Ω^−1 cm^2 mol^−1)	Elemental analyses expt. (calc.)
					C	H	N
L1H = C6H7N3S2	Yellow	(182 ± 2)	69	—	38.69 (38.90)	4.33 (3.81)	22.56 (22.68)
L2H = C7H9N3S2	Light yellow	(146 ± 2)	95	—	41.97 (40.82)	5.03 (4.79)	20.58 (20.17)
[Pb (C6H6N3S2)2] (PbL1(1))	Pale green	≥300	55	11.1	25.03 (24.69)	2.10 (1.80)	14.60 (14.25)
[Pb(C7H8N3S2)2]·H2O (PbL2 (2))	Light yellow	≥300	54	23.0	27.04 (27.28)	2.92 (2.68)	13.52 (13.32)