Journal of Chemistry / 2013 / Article / Tab 1

Research Article

Synthesis and Thermal Characterization of Lanthanide(III) Complexes with Mercaptosuccinic Acid and Hydrazine as Ligands

Table 1

Analytical and IR data.

Molecular formula
of complexes
Analytical data (%)IR data
CarbonHydrogenNitrogenSulfurHydrazineMetal
Colour Yield % D.pt/ °CFd.Fd. Fd.Fd.Fd. Fd.(H2O)symAsymasy-sym
(cald.)(cald.)(cald.)(cald.)(cald.)(cald.)cm−1cm−1cm−1cm−1cm−1cm−1cm−1

[La(N2H4)2{CH2(COO)
CH(SH)(COO) ]·( H2O)
White 6510314.4 4.5 11.3 9.3 13.2 28.8 3346 2542 1319 1533 214 945 3346
(14.5) (4.6) (11.1) (9.4) (13.3) (28.9) (b) (m) (s) (s) (m) (b)
[Pr(N2H4)2{CH2(COO)
CH(SH)(COO) ]·(H2O)
Light 659514.5 4.5 11.5 9.3 13.1 29.1 3334 2543 1319 1531 212 945 3242
Green (14.4) (4.6) (11.1) (9.4) (13.2) (29.2) (b) (m) (s) (s) (m) (b)
[Nd(N2H4)2{CH2(COO)
CH(SH)(COO) ]·(H2O)
Light 659314.4 4.5 11.01 9.4 13.2 29.6 3355 2543 1319 1536 217 945 3355
violet (14.3) (4.6) (11.0) (9.3) (13.1) (29.7) (b) (m) (s) (s) (m) (b)
[Sm(N2H4)2{CH2(COO)
CH(SH)(COO) ]·(H2O)
Dull 609514.2 4.4 11.7 9.1 13.1 30.4 3334 2553 1311 1556 245 948 3242
white (14.1) (4.5) (11.8) (9.2) (13.0) (30.5) (b) (m) (s) (s) (m) (b)
[Gd(N2H4)2{CH2(COO)
CH(SH)(COO) ]·(H2O)
Dull 609514.8 4.4 11.6 9.2 12.9 31.5 3333 2555 1309 1543 234 945 3248
white (14.9) (4.5) (11.7) (9.1) (12.8) (31.6) (b) (m) (s) (s) (m) (b)

(s): sharp, (b): broad, and (m): medium.

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