مشاركة
تحضير وتشخيص بعض مشتقات قواعد شف والفورمازانات ومعقداتهما واستخدامهما في استخلاص ايون Cr+6 بطريقة استخلاص نقطة الغيمة == Preparation and Characterization of some Schiff base and formazans derivatives and their Complexes and using them in the Extraction of (Cr+6) Ion By Mothed Cloud - Point Extraction
اسم المؤلف:
بتول مهدي صالح
اسم المشرف:
ساهر عبد الرضا علي
الموضوع العام:
علوم الكيمياء
السنة:
2017
الموضوع الدقيق:
الكيمياء
الدرجة:
ماجستير
الجامعة:
جامعة ذي قار - كلية العلوم - قسم الكيمياء
اللغة:
العربية
مكان الجامعة:
ذي قار
الصفحات الاولى:
25T1540 - p.pdf
المستخلص:
This study includes the preparation of ten ligands and it′s complexs : Ligand L4 (N - (4 - ((2 - (phenylcarbamothioyl)hydrazono)methyl)phenyl) acetamide) was prepared by the condensation of (4 - acetamido benzaldehyde) with (4 - phenylthiosemi carbazide). Ligand L5 (1, 3 - bis (2 - hydroxy - 3 - methoxy - (E) - benzylideneamino) eurea) was prepared by the condensation of (o - vanillin) with (carbohydrazide). Formazan F1 (1 - benzoyl - 3 - (2 - hydroxyphenyl) - 5 - phenylformazan) is prepared from coupling the diazonium salt with (L1) proportions Molar (1 : 1). Formazan F2 (3 - (2 - hydroxyphenyl) - 1 - nicotinyl - 5 - phenyl formazan) was prepared by coupling the diazonium salt with (L2) proportions Molar (1 : 1).Complexes were prepared for (L3), (F1) and (F2) by interaction with the salts of the elements NiCl2.6H2O, CoCl2.6H2O, CdCl2.6H2O, CrCl3.6H2O. The ligands and it′s complexes were characterized by using Elemental Analysis (C.H.N) Infrared Spectroscopy(FT - IR), Nuclear Magnetic Resonance Spectroscopy (1H - NMR) , Mass Spectra and Molar Electrical Conductivity and the results were identical to what is expected scientifically. The spatial shape of the complexes prepared is (octahedral). (ligand L1 and formazan F1) on distribution ratio values and percentage of extraction, where results showed that percentage values and distribution ratio in this way increase with increasing concentration of (L1 and F1) where he found that the best distribution ratio (D) and percentage (% E) to extract ion(Cr+6) when concentration (L1 & F1) is (5 * 10 - 4 M).
