SYNTHESIS AND CHARACTERISATIONS OF SIX NEW BIS-THIOSEMICARBAZONE LIGANDS

Diana CEBOTARI, Mohamed HAOUAS, Sébastien FLOQUET, Aurelian GULEA

Abstract


Six new bis-thiosemicarbazones ligands were synthesized with rigid or flexible organic chemical links between the two thiosemicarbazones moieties. Such ligands have been designed for the synthesis of polymetallic coordination complexes. They were synthesised by the condensation reaction between aldehydes and substituted thiosemicarbazides in alcohol, using acetic acid as a catalyst. To determine the composition, the products were characterised by 1H, 13C and 15 N nuclear magnetic resonance, mass spectrometry and elemental analysis.

 

SINTEZA ȘI CARACTERIZAREA A ȘASE NOI LIGANZI BIS-TIOSEMICARBAZONICI

Au fost sintetizați șase noi liganzi bis-tiosemicarbazonici cu legături organice rigide sau flexibile între cele două fracțiuni tiosemaicarbazonice. Astfel de liganzi au fost proiectați pentru sinteza complecșilor de coordonare polimetalică. Ei au fost obținuți prin reacția de condensare dintre aldehide și tiosemicarbazide substituite, în mediul alcoolic, folosind acidul acetic în calitate de catalizator. Pentru determinarea compoziției și purității, produșii au fost caracterizați cu ajutorul 1H, 13C și 15 N rezonanță magnetică nucleară, spectroscopia de masă și analiza elementală.


Keywords


bis-thiosemicarbazone, synthesis methods, NMR characterisation, polymetallic complexes.

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References


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