ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Metallic salts of salicylaldehyde 4-phenylthiosemicarbazone and of salicylaldehyde S-methyl-2,4-diphenylthiosemicarbazone

S. Stankoviansky and J. Čársky

Komenský University, Bratislava

Abstract: Reactions of salicylaldehyde 4-phenylthiosemicarbazone (acting as a mono- or dibasic acid) with bivalent metals and formation of inner complex salts were described. These cryst. salts were isolated and analyzed: Ni(II), red-brown, sol. in boiling alc., ether, CHCl₃, and EtOAc, decompg. 205°, C₁₄H₁₁ON₃SNi.NH₃; Ni(II), green, sol. in boiling alc., EtOAc, acetone, decompg. 195°, (C₁₄H₁₁ON₃S)₂Ni; Pb(II), yellow insol. in ether, H₂O, EtOAc, partially sol. in acetone, CHCl₃, decompg. 205°, C₁₄H₁₁ON₃SPb; Cd(II), yellow, insol. in alc. ether, CHCl₃, EtOAc, partially sol. in acetone, decompg. 240°, (C₁₄H₁₂ON₃S)₂Cd; Co(III) [Co(II) oxidized to Co(III)], darkbrown, insol. in ether, CHCl₃, partially sol. in EtOAc, acetone, decompg. 250° (C₁₄H₁₂NO₃S)₂CoNO₃; Cu(II), dark brown, sol. in CHCl₃, acetone, partially sol. in ether, EtOAc, decompg. 200°, C₁₄H₁₁ON₃SCu.NH₃. From monobasic acid were derived Ni(II) (green), Cd(II) and Co(III), from dibasic acid Ni(II) (red-brown), Pb(II) and Cu(II), which were considered as asym. bicyclic inner complex compds. Structural formulas were given. To prove the structure, Ni(II), Cd(II), and Co(III) salts of salicylaldehyde S-methyl-2,4-diphenylthiosemicarbazone were prepd. The analyses were: Ni(II), brown, (C₂₁H₁₈ON₃S)₂Ni; Cd(II), yellow, sol. in boiling alc., (C₂₁H₁₈ON₃S)₂Cd; Co(III) [Co(II) oxidized to Co(III)], brown, (C₂₁H₁₈ON₃S)₂Co.NO₃.NH₃. Structural formulas were given.

Full paper in Portable Document Format: 151a36.pdf (in Slovak)

Chemical Papers 15 (1) 36–44 (1961)