Synthesis and spectral studies for new schiff base and its binuclear complexes with ZnII,CdII and HgII
Other Title(s)
تحضير و دراسات طيفية لقاعدة شف جديدة و معقداتها ثنائية النواة مع ZnII, CdII and HgII
Author
al-Husayni, Ahmad Thabit Numan Husayn
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 23, Issue 2 (31 Aug. 2010)11 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2010-08-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Abstract AR
تضمن البحث تحضير الليكاند الجديد 4,4'–(2,2'-(1,4-phenelenebis(methan-1-yl-1-ylidene))bis(azan-1-yl-1-ylidene)bis(1,2-phenylen))bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)dibenzene1,3-diol إذ حضر هذا الليكاند بخطوتين : الخطوة الأولى مفاعلة (terephthaldehyde) مع ( phenylenediamine -1.2 و تكوين N1,N1 – (1.4 phenylenebis (methan1-ylylidene)) dibenzene-1.2dianzene-1.2diamin.
الخطوة الثانية مفاعلة N1,N1 – (1.4 phenylenebis (methan1-ylylidene)) dibenzene-1.2dianzene-1.2diamine 2.4dihydroxybenzaldehde و تكوين الليكاند الجديد (H4L) 4.4-2.2-(1.4- phenelenebis (methan-1-y-1-ylidene))bis(azan-1-y1-1 ylidene)bis(1.2- phenylen))bis(azan-1-y1-1 ylidene)bis(methan -1-y1-1 ylidene) dibenzene1.3-diol تم مفاعلة هذا الليكاند مع بعض العناصر الفلزية باستعمال الميثانول وسطا للتفاعل و بنسبة (2:1) إذ تكونت معقدات جديدة لها الصيغة العامة [M2(H2L)CL2] إذ : M=Zn Π, Cd Π and Hg Π شخصت جميع المركبات بالطرائق الطيفية، الأشعة تحت الحمراء و الأشعة فوق البنفسجية–المرئية، 1HNMR , (HPLC) مطيافية الامتصاص الذري للعناصر و تم تعيين محتوى الكلور و درجات الانصهار، مع قياس التوصيلية المولارية الكهربائية.
كذلك استخدمت طريقة (mole-ratio) لتعيين نسبة الليكاند إلى الفلز و كانت النتيجة 1:2 من نتائج البحث فإن الشكل الفراغي المقترح لمعقدات كل من الزنك و الكادميوم و الزئبق هو رباعي السطوح المشوه.
حسب ثابت الاستقرارية (K) و طاقة جبس الحرة G.
اختيرت الفعالية البايولوجية لليكاند المحضر و معقداته.
Abstract EN
A new ligand (H4L) and its complexes with (ZnII, CdII and HgII) were prepared.
This ligand was prepared in two steps.
In the first step a solution of terephthaldehyde in methanol was reacted under reflux with 1, 2-phenylenediamine to give an precursor compound which reacted in the second step with 2, 4-dihydroxybenzaldehyde to give the ligand.
The complexes were then synthesized by direct reaction of the corresponding metal chloride with the ligand.
The ligand and complexes were characterized by spectroscopic methods FT-IR, UV-Vis, 1HNMR, and atomic absorption, chloride content, HPLC, mole-ratio determination.
in addition to conductivity measurement.
The data of these measurements suggest a distorted tetrahedral geometry for ZnII, CdII and HgII complexes and that they would be presented as [M2L (H2L) CI2].
The Stability Constant K and Gibbs free energy ∆G were calculated for [Zn2 (H2L) Cl2] and [Cd2 (H2L) Cl2] complexes by using spectrophotometer method.
The obtained values indicate that these complexes are stable in their solution.
The biological activity for the following ligand (H4L) and complexes [Zn2 (H2L) Cl2] and [Cd2 (H2L) Cl2] was studied .
American Psychological Association (APA)
al-Husayni, Ahmad Thabit Numan Husayn. 2010. Synthesis and spectral studies for new schiff base and its binuclear complexes with ZnII,CdII and HgII. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 23, no. 2.
https://search.emarefa.net/detail/BIM-287639
Modern Language Association (MLA)
al-Husayni, Ahmad Thabit Numan Husayn. Synthesis and spectral studies for new schiff base and its binuclear complexes with ZnII,CdII and HgII. Ibn al-Haitham Journal for Pure and Applied Science Vol. 23, no. 2 (2010).
https://search.emarefa.net/detail/BIM-287639
American Medical Association (AMA)
al-Husayni, Ahmad Thabit Numan Husayn. Synthesis and spectral studies for new schiff base and its binuclear complexes with ZnII,CdII and HgII. Ibn al-Haitham Journal for Pure and Applied Science. 2010. Vol. 23, no. 2.
https://search.emarefa.net/detail/BIM-287639
Data Type
Journal Articles
Language
English
Notes
Includes appendces.
Record ID
BIM-287639
