Naslov
Oxovanadium(V) complexes of salicylaldehyde and 3-methoxy-salicylaldehyde 4-phenylthiosemicarbazones. Formation of two new thiazoline compounds

Autori
Cindrić, Marina ; Rubčić, Mirta ; Đilović, Ivica ; Giester, Gerald ; Kamenar, Boris

Izvornik
Croatica Chemica Acta (0011-1643) 80 (2007); 583-590

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
vanadium(V) complexes; thiosemicarbazones; x-ray crystal structures; thiazoline derivatives; cyclization reactions

Sažetak
In the reaction of tris(2, 4-pentandionato)vanadium(III) with salicylaldehyde 4-phenylthiosemicarbazone (in complex 1) and 3-methoxy-salicylaldehyde 4-phenylthiosemicarbazone (in complex 3), two new mononuclear complexes of vanadium(V), [VO(SNO)(OCH3)] (1, 3) and thiazoline derivatives, {; ; ; ; ; ; R-CHNN[CNC(C6H5)C(CH3)C(O)(CH3)S]}; ; ; ; ; ; [R = -C6H4(OH) (L1cycl, 2) or -C6H3(OCH3)(OH) (L2cycl, 4)] have been prepared. The isolation of the thiazoline derivatives is the first example of cyclization reactions of thiosemicarbazones with an appropriate β -diketone involving vanadium. In vanadium(V) complexes, 1 and 3 vanadium is coordinated by one doubly bonded oxygen atom, ONS atoms from the salicylaldehyde thiosemicarbazone ligand and by an oxygen atom from methoxo ligand. All compounds have been characterized by means of chemical analyses and IR spectroscopy. The crystal and molecular structures of 1-4 have been determined by single-crystal X-ray diffraction method.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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