تحضيرودراسة طيفية والفعالية الحيوية والثرموداينميكية لمعقدات جديدة لبعض أيونات المعادن مع 2- [5- (2-هيدروكسي-فينيل) - 4,3,1- ثياديازول -2-يليمينو] -ميثيل- نفثالين-1-أول ]
محتوى المقالة الرئيسي
الملخص
تم في هذه الدراسة تحضير سلسلة جديدة من المعقدات ثنائية النواة رباعية السن ( (N2O2بصيغة M2L2.4H2O من عناصـر السلسلـة الانتقالية الأولى الكروم (III) الكوبلت (II) والنحاس (II) مع ليكند لقاعدة شيف (LH2) 2-[5-(2-Hydroxy-phenyl)- 1,3,4-thiadiazol-2-ylimino]-methyl-naphthalen-1-ol], المشتقة من تفاعل 1-Hydroxy-naphthalene-2-carbaldehyde مع 2-amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. تم التحقق من الصيغ التركيبية لليكاندات المعقدات المحضرة بالطرائق الفيزيائية المعروفة مثل درجة الانصهار والتحليل الدقيق للعناصر (C.H.N.O), التوصيلية الكهربائية المولارية والحساسية المغناطيسية والتحليل الحراري (TGA) والأطياف الالكترونية وطيف الأشعة تحت الحمراء وتم تقدير نسبة الفلزات بطريقة الامتصاص الذري و ايجاد النسبة المئوية للكلوريد في المعقدات قياس طيف الكتلة (MS) و 1H-NMR لليكاندا المحضر على ضوء نتائج القياس اعلاه تم اقتراح شكل ثماني السطوح لجميع المعقدات من (Cr3+,Co2+,Cu2+). توضح قياس التوصيلة أن المعقــــــدات المحضرةCr3+,Co2+,Cu2+) كانت غير إلكتروليت باستثناء Cr3+,. تم حساب الثوابت الديناميكية والثرموداينميكية مثل طاقة التنشيط Ea ، والانثالبية ΔH ، الانتروبيا ΔS والطاقة الحرة Gibbs ΔG باستخدام معادلة Coats-Redfern بواسطة منحنى TGA. تم فحص النشاط الحيوي لقاعدة شيف والمعقدات المحضرة لأنواع من البكتيريا واظهرت نشاطًا كبيرًا ضد بعض والبكتيريا.
Received 22/5/2021
Accepted 4/7/2021
Published Online First 20/1/2022
تفاصيل المقالة
هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.
كيفية الاقتباس
المراجع
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