Some complexes of zinc(II), cadmium(II), and mercury(II) with thiosemicarbazide

N,N-Dibromobenzenesulfonamide as an analytical reagent: Determination of thiocyanate and cyanide ions in metal complexes and salts and thiosemicarbazide alone and in its metal complexes

“…Platinum and palladium complexes were prepared from H,PtCl,.xH,O and PdCl, (Johnson-Mathey, Ltd., London). The following thiosemicarbazide (L) complexes were prepared by methods reported elsewhere (5,7,17,26,27): ML&, where M = Zn, Cd, Ni, or Hg, X = Cl, NOB, ClO,, or '/2 SO,; cis-and trans-PtL,Cl, and PtL,X2, where X = Br, I, CN, NCS, or NO,; cis-and trans-PdLaNOJ,;…”

“…The complexes were recrystallized from aqueous solution and characterized by their elemental analyses and ir spectra (26,27).…”

Determination of thiosemicarbazide alone and in its metal complexes with arylhalosulfonamides

“…Their activity has been due to their ability to chelate trace metals. These facts have led recently to an increased interest in the chemistry of transition metal chelates of thiosemicarbazides (2,8,20,21). Since a number of metal complexes of the compound are known, suitable analytical techniques are essential for estimating TSC in the pure state as well as in its complexes.…”

Thiosemicarbazide complexes of mercury (II) halides

“…For example, the band at 544 cm-I in HgCl,(tsc), was erroneously assigned to v(Hg-N) (1). The Hg-N bond does not exist in the compound HgCl,(tsc), (4).…”

“…A few group IIB metal complexes of thioseinicarbazide (tsc) have been reported in the literature (1). Compounds ZnCl,(tsc) and HgCl,(tsc) are molecular complexes with a bidentate tsc ligand (2,3).…”