Oxovanadium(V) Complexes of Salicylaldehyde and 3-Methoxysalicylaldehyde 4-phenylthiosemicarbazones. Formation of Two New Thiazoline Compounds

摘要: In the reaction of tris(2,4-pentandionato)vanadium(III) with salicylaldehyde 4-phenylthiosemi-carbazone (H 2 L 1 ) and 3-methoxysalicylaldehyde 4-phenylthiosemicarbazone ), two new mononuclear complexes vanadium(V), [VOL (OCH 3 )] (1) (3), as well thiazoline derivatives, {R-CHNN[CNC(C 6 H 5 )C(CH )C(O)(CH )S]}[R = -C 4 (OH) (L cycl , 2) or )(OH) 4)] have been prepared. The isolation derivatives is first example cyclization reactions thiosemicarbazones appropriate /5-diketone involving vanadium. vanadium(V) 3, vanadium coordinated by one doubly bonded oxygen atom, ONS atoms from thiosemicarbazone ligand an atom methoxo ligand. All compounds characterized means chemical analyses IR spectroscopy. crystal molecular structures 1-4 determined single-crystal X-ray diffraction.