Transition metal complexes with thiosemicarbazide-based ligands. Part 30. Synthesis, characterization and thermal decomposition of Mo(V, VI) complexes with salicylaldehyde S-methylisothiosemicarbazone

Abstract The thermal decomposition of several Mo(VI)- and Mo(V)-complexes with salicylaldehyde S -methylisothiosemicarbazone (H 2 L ) of general formula Mo(VI)O 2 ( L ), Mo(VI)O 2 ( L ) S ( S = MeOH, EtOH, Py, DMF, DMSO), (Mo(V)O(H L )Cl) 2 O and (Mo(V)O(H L )Cl) 2 O·Me 2 CO were investigated. These complexes and the previously prepared Mo(VI) complexes were characterized by spectroscopic (IR, UV-VIS, NMR) and thermal (TG, DTG and DSC) methods. The molar conductivity and magnetic susceptibility of the complexes were also determined. Structure of some decomposition products were determined and a decomposition schemes were proposed.