Synthesis, characterisation and thermal properties of bis{3-(2-amino-benzylimino)-pentan-2-one oximato}cobalt(III) saccharinate monohydrate complex

Öz

In this work, [Co(HL')₂](sac)_·H₂O was obtained from the reaction of cobalt(II) chloride with 1-(2-ethyl-1,2,3,4-tetrahydro-quinazolin-2-yl)-ethanone oxime (HL) within the presence of Na(sac) (sac: saccharinate). The new complex was characterized by elemental analysis, spectral methods (UV-Vis., FT-IR, ¹H-NMR, ¹³C-NMR ve LC-MS) and thermal analysis (TG-DTA).  The obtained results show that the ligand undergoes a ring-opening reaction upon formation of the complex and the chain tautomer acts as  N,N,N-donor. The sac anion remains outside the coordination sphere as complementary ion in the cationic complex of the coordination of Co(III) ion and two HL' ligands.

Anahtar Kelimeler

• 1-(2-Ethyl-1 2 3 4-tetrahydro-quinazolin-2-yl)-ethanone oxime,cobalt(III) complex,saccharinate

Bis{3-(2-amino-benzilimino)-pentan-2-on oksimato}kobalt(III) sakkarinat monohidrat kompleksinin sentezi, karakterizasyonu ve termal özellikleri

Öz

Bu çalışmada, Na(sac) (sac: sakkarinat) varlığında kobalt(II) klorür ile 1-(2-etil-1,2,3,4-tetrahidro-kinazolin-2-il)-etanon oksimin (HL) tepkimesinden [Co(HL')₂](sac)_·H₂O kompleksi elde edildi.  Bu yeni kompleksin yapısal aydınlatması elementel analiz, spektroskopik yöntemler (UV-Vis., FT-IR, ¹H-NMR, ¹³C-NMR ve LC-MS) ve teermal analiz yöntemleri (TG-DTA) ile gerçekleştirildi.  Elde edilen sonuçlar kompleks oluşumu sırasında ligandın halka açılma tepkimesine uğradığını ve zincir tautomerinin bir N,N,N-verici olarak davrandığını göstermektedir.   Co(III) iyonu ile iki HL' ligandının koordinasyonundan oluşan bu katyonik komplekste, sac anyonu tamamlayıcı iyon olarak koordinasyon küresinin dışında yer almaktadır.

Anahtar Kelimeler

• 1-(2-Etil-1 2 3 4-tetrahidro-kinazolin-2-il)-etanon oksim,kobalt(III) kompleksi,sakkarinat

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